Consulta: subjectFacets:"Exercise"
Registros recuperados: 67
Data/hora: 29/05/2024 03:42:26

Can the Intermittent Training Generate Alterations on the Liver Tissue of Rats Submitted to a Hyperlipidic Diet?
Provedor de dados: 77
Autores: Magalhães,Alan José Barbosa; Castoldi,Robson Chacon; Camargo,Regina Celi Trindade; Ozaki,Guilherme Akio Tamura; Costalonga,Regiane Rocha; Moreira,Rafael Junges; Seraphim,Patricia Monteiro; Camargo Filho,José Carlos Silva.
Studies indicate that increasing physical activity and decreasing levels of fat in the liver help to decrease the risk of morbidity from liver conditions. This study aimed to evaluate the effects of an eight week intermittent training program on the liver tissue of rats subjected to a hyperlipidic diet. The study consisted of 30 male Wistar rats, divided into the following groups: Sedentary Control (SC) Exercise Control (EC) (fed on standard feed and water) Sedentary Obese (SO) and Exercise Obese (EO) (fed on bacon, ham, sausage, biscuits, soda and standard feed), which performed intermittent training through electrically stimulated jumps, with three sets of 12 repetitions, three times per week for eight weeks. At the end of the training period, the...
Tipo: Journal article
Palavras-chave: High fat diet; Exercise; Hepatocytes.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100014

Muscle Response to the Association of Statin and Physical Exercise in Rats
Provedor de dados: 77
Autores: Bonfim,Mariana Rotta; Camargo Filho,José Carlos Silva; Vanderlei,Luiz Carlos Marques; Padulla,Susimary Aparecida Trevizan; Accioly,Marilita Falângola; Souza,Dorotéia Rossi Silva; Azoubel,Reinaldo.
Physical exercise and statins, which are recommended for the treatment of dyslipidemia, are independently associated to the occurrence of muscle injury. The objective is analyze the effect of aerobic exercise associated to the use of simvastatin on the morphology of the gastrocnemius muscle. Thirty Wistar rats were divided into six groups, two of which received a standard diet (1 sedentary and 1 exercised) and four (1 sedentary with medication, 1 sedentary without medication, 1 exercised with medication, 1 exercised without medication) received a hypercholesterolemic diet (standard diet with the addition of cholesterol and coconut oil). Simvastatin (20 mg/Kg) was administered five days a week for eight weeks, together with aerobic training on a treadmill...
Tipo: Journal article
Palavras-chave: Hydroxymethylglutaryl-CoA Reductase Inhibitors; Exercise; Skeletal Muscle.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400031

Left Ventricle Myocardium Volume Densities in Spontaneously Hypertensive Rats (SHR) Following Combination of Exercise and ACE Inhibitor Treatment: A Stereological Study
Provedor de dados: 77
Autores: Inuwa,I. M.; Hassan,M. O.; Ziada,A. M.
This study was designed to test the possible effects of a combination of physical and pharmacological therapy intervention on myocardial structure of the left ventricle in spontaneously hypertensive rats (SHR). Twelve weeks old spontaneously hypertensive rats (n = 40) were divided into four groups of sedentary, (Sed) as controls, exercise only (Exer), lisinopril only 20mg/kg/day (Lis), and exercise + lisinopril (LisExer). Exercise training was performed on a treadmill (5m/min.) for 60 minutes/day, 5 days/week for 10 weeks. At the end of 10 weeks, all the rats were terminally anaesthetised, the heart was arrested in diastole by intravenous procaine and whole animal perfusion fixation through the abdominal aorta was carried out using Karnovsky's fixative (pH...
Tipo: Journal article
Palavras-chave: Myocardium; Hypertrophy; ACE-inhibitor; Volume fraction; Exercise.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000200010

Effects of Nandrolone Decanoate on Spermatogenesis in Wistar Rats With and Without Physical Training
Provedor de dados: 77
Autores: Maia,Bernardo Porto; Silveira,Jéssica de Oliveira; Borges,Mariana Garcia Lisboa; Pereira,Danilo Ales Ponzi; Pinheiro,Julyara Lima; Freitas,Jofre Jacob da Silva; Kietzer,Katia Simone.
Androgenic anabolic steroids (AAS) are artificial testosterone analogues, used as medicine in chronic diseases, because they increase protein synthesis generating muscle hypertrophy. Its effect has caught the attention of athletes and gym users, thus their consumption has become epidemic, due to easy marketing, the immediate results and the false impression that it doesn't carry health risks. Such risks may globally harm the body. This study aims to investigate the influence on spermatogenesis of using nandrolone decanoate with or without physical training. Twenty-four rats, divided into four groups were used: sedentary group (SG), sedentary on steroids group (SSG), trained group (TG) and trained on steroids group (TSG). The animals were trained on...
Tipo: Journal article
Palavras-chave: Spermatogenesis; Anabolic agents; Nandrolone; Exercise; Fertility.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300046

Effects of Statin and Aerobic Physical Exercise Association in the Cardiomyocytes of the Rat: Morphometric Study
Provedor de dados: 77
Autores: Padulla,Susimary Aparecida Trevizan; Azoubel,Reinaldo; Bonfim,Mariana Rotta; Accioly,Marilita Falángola; Camargo Filho,José Carlos Silva; Padovani,João Armando; Brandao,Antonio Carlos; Souza,Dorotéia Rossi Silva.
Physical exercise and statins, recommended interventions to dyslipidaemia treatment, are independently related to cardiomyocytes alterations, characterized by miocardic hypertrophy and apoptosis, respectively. Thus, the objective of the present study was to analyze the effects of statin and aerobic physical exercise association in the morphometric parameters of cardiac cell nucleus. 40 male rats adults were divided into four groups: exercised (DE); sedentary (DS), exercised and statin use (DES); sedentary and statin use (DSS). The animals received during the whole experimental period a hiperlipidic diet added 20% of coconut oil and 1.25% of cholesterol; after 30 days of its ingestión, a blood collection was made to verify the dyslipidaemia. Simvastatin (20...
Tipo: Journal article
Palavras-chave: Hydroxymethylglutaryl-CoA Reductase Inhibitors; Exercise; Cardiomyocite nuclei.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000100015

Effect of Statins and Aerobic Physical Exercise on Liver Function in Dyslipidemic Rats: Morphometric Study
Provedor de dados: 77
Autores: Accioly,Marilita Falângola; Souza,Dorotéia Rossi Silva; Padulla,Susimary Aparecida Trevizan; Camargo Filho,José Carlos Silva; do Carmo,Edna Maria; Martins,Alex Tadeu; Brandão,Antônio Carlos; Azoubel,Reinaldo.
The present study was carried out to evaluate the effect of statins associated with physical exercise (PE) in liver cells in dyslipidemic rats through cariometry. The animals were divided into six groups: animals subjected to a hypercholesterolemic diet (HD), simvastatin, with (G1) and without (G2) physical exercise (PE); HD submitted (G3) or not (G4) to PE, and commercial food diet (F) with (G5) and without (G6) PE. Histological analysis of the liver was performed by staining the slides with hematoxylin and eosin. The cariometric study included measuring the major and minor diameters of the hepatocytes nuclei. The Shapiro-Wilk test was also performed. To determine the differences among the groups, the Kruskal-Wallis Test with Dunn's post-test were...
Tipo: Journal article
Palavras-chave: Simvastatin; Exercise; Diet; Cariometry.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400026

Intermittent sustained swimming in 'matrinxã' Brycon amazonicus (Bryconidae: Bryconinae): hematological and metabolic responses
Provedor de dados: 83
Autores: Fabrizzi,Fernando; Moraes,Gilberto; Hackbarth,Araceli; Almeida,Luciana Cristina de; Arbeláez-Rojas,Gustavo; Nunes,Cleujosí da Silva.
In fish, studies on a wide variety of physiological effects of exercise have been reported since a long time. It has been attributed special attention to some types of exercise, however, its application as a healthful practice in the rearing and welfare of farming fish is rising in last few years. In this particular, long-term intermittent sustained swimming (ISS) has been not yet explored. In this work, the freshwater fish Brycon amazonicus was submitted to (ISS) for 30 days at velocity of 1.0 body-length sec-1 for 12h interspaced by 12h under still water. Hematology and metabolism were evaluated. Exercised fish decreased 30% the erythrocyte number and hemoglobin was unvaried. The stores of liver glycogen and muscular triacylglycerol (TAG) were increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adaptation; Exercise; Fish; Glycogen; Metabolism; Triacylglycerol.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200425

Growth and hematology of pacu subjected to sustained swimming and fed different protein levels
Provedor de dados: 86
Autores: Nunes,Cleujosí da Silva; Moraes,Gilberto; Fabrizzi,Fernando; Hackbarth,Araceli; Arbeláez-Rojas,Gustavo Alberto.
The objective of this work was to evaluate the effect of sustained swimming and dietary protein levels on growth and hematological responses of juvenile pacu (Piaractus mesopotamicus). A completely randomized design was used in a 3x2 factorial arrangement, with three levels of dietary protein (24, 28, and 32% crude protein), two rearing conditions (sustained swimming or motionless water), and 15 replicates. Fish were subjected to sustained swimming at the velocity of two body lengths per second (2 BL s-1), for 45 days. The level of dietary protein and the swimming conditions affected the performance, growth, and hematological profile of pacu. Swimming conditions influenced nutritional factors, increasing daily weight gain, specific growth rate, number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piaractus mesopotamicus; Erythropoiesis; Exercise; Growth rate; Weight gain.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000600010

Thermographic evaluation of exercise influence on the joints of the hind legs of healthy dogs
Provedor de dados: 195
Autores: Germano, Bruno; Navarro Alves de Souza, Alexandre; Maria Matera, Julia.
Many muscular contractions occur when an exercise is performed, transforming the chemical energy from food ingested into kinetic energy. No organism can achieve 100% efficiency in this process; the remaining is thus converted into thermic energy, generating heat that will be transported to superficial tissues and dissipated through the skin. Such energy release can be captured and measured by thermography, which registers infra-red emissions, indicating the body temperature. This study observed how the joints of the hind legs of healthy dogs thermally behave when submitted to different activities to evaluate how much each joint is required for the execution of the exercises. Twelve healthy dogs were submitted various activities: going up stairs, going down...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thermography; Joint; Exercise; Termografia; Articulação; Exercício.
Ano: 2019
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/38004

Optimization of sustaining swimming speed of matrinxã Brycon amazonicus: performance and adaptive aspects
Provedor de dados: 63
Autores: Arbeláez-Rojas,Gustavo; Moraes,Gilberto.
Deleterious changes in metabolism, growth performance and body composition may be observed if fish are constrained to swimming continuously or intermittently at over-speeds. This study evaluates effects of four water speeds on growth, body composition and hematologic profile of juvenile matrinxã, Brycon amazonicus. Fish (33.3 ± 0.9 g and 13.44 ± 0.1 cm) were held for 90 days in five water speeds (0.0 - control, 1.0, 1.5, 2.0 and 2.5 body lengths per second - BLAt swimming speeds ranging on 1.0 and 1.5 BL s–1, in fish growth was 20% higher. Hemoglobin and red blood cells at 1.5 BL s–1 increased 24% and 18% respectively; hematocrit was 17% higher in all exercised fish; protein content of white muscle at 1.0 BL s–1 was 2% higher; lipid deposition in red...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body composition; Exercise; Fish growth; Hematology; Sustained swimming.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000300001

Efeito de dietas com adição de óleo e do treinamento sobre a atividade muscular de equinos submetidos à prova de resistência - DOI: 10.4025/actascianimsci.v30i3.5714
Provedor de dados: 2
Autores: Brandi, Roberta Ariboni; UNESP; Furtado, Carlos Eduardo; UEM; Martins, Elias Nunes; UEM; Freitas, Eduardo Villela Villaça; UNIUBE; Lacerda-Neto, Jose Correa de; UNESP; Queiroz-Neto, Antonio de; UNESP.
O trabalho teve como objetivo verificar o efeito da adição de óleo de soja e do treinamento na atividade plasmática das enzimas Creatina Quinase (CK) e Aspartato Aminotransferase (AST) sobre o trabalho muscular de equinos submetidos a teste de resistência. Foram fornecidas dietas experimentais compostas por cinco níveis de óleo de soja no concentrado (controle, 6, 12, 18 e 24%). Foram utilizados 20 equinos da raça Árabe, peso médio de 400 kg, submetidos a teste de resistência de 80 km em esteira rolante, em Laboratório de Fisiologia do Exercício. A simulação de enduro foi dividida em quatro fases de 20 km cada. Observou-se efeito (p &lt; 0,05) da adição de óleo e da distância percorrida sobre as variáveis AST e CK durante o enduro e também no período de...
Palavras-chave: 5.04.03.00-1    Nutrição e Alimentação Animal aspartato aminotransferase; Cavalos; Creatina quinase; Exercício. aspartate aminotransferase; Horse; Creatine kinase; Exercise.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/5714

Exercise protects rat testis from cyclophosphamide-induced damage - doi: 10.4025/actascibiolsci.v35i1.12475
Provedor de dados: 3
Autores: Ramos, Solange de Paula; Universidade Estadual de Londrina; Goessler, Karla Fabiana; Universidade Estadual de Londrina; Ruiz, Roberto Jose; Universidade Estadual de Londrina; Ferrari, Osny; Universidade Estadual de Londrina; Polito, Marcos Doederlein; Universidade Estadual de Londrina; Salles, Maria José Sparça; Universidade Estadual de Londrina.
To investigate the effect of chronic moderate exercise on male reproductive tract of Wistar rats submitted to a single dose of cyclophosphamide (CP). Animals were submitted to swimming exercise during 21 days or maintained at sedentary state. Trained (TCP) and sedentary (SCP) groups received a single dose of CP (200 mg kg-1, i.p.). Trained (TCo) and sedentary (SCo) control animals received sterile PBS. Animals were killed after one week and testis, epidydimis and seminal vesicle contend were weighted. Testis were embebbed in parafim and stained with hemotaxilin and eosin. Fifty seminiferous tubules of each animal were analyzed by Johnsen score. Mean Sertoli cells counts per tubule and Leydig cells counts per area were evaluated. CP treatment impairs body...
Tipo: Estudos morfológicos
Palavras-chave: 2.06.03.00-2 cyclophosphamide; Exercise; Reproductive tract Histologia.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/12475

General aspects of muscle glucose uptake
Provedor de dados: 42
Autores: ALVIM,RAFAEL O.; CHEUHEN,MARCEL R.; MACHADO,SILMARA R.; SOUSA,ANDRÉ GUSTAVO P.; SANTOS,PAULO C.J.L.
Glucose uptake in peripheral tissues is dependent on the translocation of GLUT4 glucose transporters to the plasma membrane. Studies have shown the existence of two major signaling pathways that lead to the translocation of GLUT4. The first, and widely investigated, is the insulin activated signaling pathway through insulin receptor substrate-1 and phosphatidylinositol 3-kinase. The second is the insulin-independent signaling pathway, which is activated by contractions. Individuals with type 2 diabetes mellitus have reduced insulin-stimulated glucose uptake in skeletal muscle due to the phenomenon of insulin resistance. However, those individuals have normal glucose uptake during exercise. In this context, physical exercise is one of the most important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diabetes; Exercise; Glucose uptake; Diet; Hypoglycemic drugs.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100351

The role of cyclooxygenase-2 on endurance exercise training in female LDL-receptor knockout ovariectomized mice
Provedor de dados: 42
Autores: OLIVEIRA,FLAVIA DE; MAIFRINO,LAURA B.M.; JESUS,GUSTAVO P.P. DE; CARVALHO,JULIANA G.; MARCHON,CLÁUDIA; RIBEIRO,DANIEL A.
Estrogen deprivation in postmenopausal women increases cardiovascular risk. Cardiovascular risk as a result of atherosclerosis is able to induce an inflammatory disease as far as cyclooxygenase-2 ( COX-2) expression. The purpose of the study was to investigate the role of COX-2 on exercise training in female mice low-density lipoprotein receptor knockout ( LDL-KO) with or without ovariectomy. A total of 15 female C57BL/6 mice and 15 female LDL-KO mice were distributed into 6 groups: sedentary control, sedentary control ovariectomized, trained control ovariectomized, LDL-KO sedentary, LDL-KO sedentary ovariectomized and LDL-KO trained ovariectomized. The ascending part of the aorta was stained with H&amp;E and COX-2 expression was assessed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atherosclerosis; Ciclooxygenase-2; Exercise; Menopause.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000301157

Regular exercise, overweight/obesity and sedentary lifestyle cause adaptive changes in thiol–disulfide homeostasis
Provedor de dados: 42
Autores: GOL,MEHMET; ÖZKAYA,BEYTULLAH; YILDIRIM,CANER; BAL,RAMAZAN.
Abstract: Dynamic thiol–disulfide homeostasis is considered to have critical roles in maintenance of physiological functioning. We aimed to reveal whether there is any specific aberration in thiol–disulfide homeostasis in three distinct categories of individuals, including those who 1) exercise regularly (fitness group), 2) have a sedentary lifestyle (sedentary group) and 3) are overweight or obese (overweight/obese group). 72 male individuals were included in the study, 21 of whom were in fitness group, 28 of whom were overweight or obese and 23 of whom had a sedentary lifestyle. Plasma native thiol (-SH) and total thiol [(-SH) + (-S-S-)] levels were quantitatively determined. Total thiol levels in sedentary group were significantly lower than those in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Obesity; Oxidative stress; Thiol-disulfide homeostasis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300801

Evaluation of anaerobic threshold in non-pregnant and pregnant rats
Provedor de dados: 42
Autores: NETTO,ALINE OLIVEIRA; MACEDO,NATHÁLIA C.D.; GALLEGO,FRANCIANE Q.; SINZATO,YURI K.; VOLPATO,GUSTAVO T.; DAMASCENO,DÉBORA C.
ABSTRACT Several studies present different methodologies and results about intensity exercise, and many of them are performed in male rats. However, the impact of different type, intensity, frequency and duration of exercise on female rats needs more investigation. From the analysis of blood lactate concentration during lactate minimum test (LacMin) in the swimming exercise, the anaerobic threshold (AT) was identified, which parameter is defined as the transition point between aerobic and anaerobic metabolism. LacMin test is considered a good indicator of aerobic conditioning and has been used in prescription of training in different exercise modalities. However, there is no evidence of LacMin test in female rats. The objective was to determine AT in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Swimming; Anaerobic threshold; Lactate; Pregnancy; Rats.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602749

The effect of newly initiated exercise training on dynamic thiol / disulphide homeostasis in sedentary obese adults
Provedor de dados: 42
Autores: CELIK,HAKIM; KILIC,TUGBA; KAPLAN,DAVUT S.; EREN,MEHMET A.; EREL,OZCAN; KARAKILCIK,ALI Z.; BAGCI,CAHIT.
Abstract: We studied dynamic thiol/disulphide homeostasis, an indicator of oxidative stress, to investigate the effects of newly initiated exercise training on sedentary obese adults. Seventeen sedentary obese adults and 15 normal-weight controls were included in the sample for this study. The obese adults were given a physical exercise training program that lasted twelve weeks. Before and after the exercise training program, blood samples were collected, and serum thiol/disulphide parameters were measured by using a novel technique. Before the start of the exercise training, it was observed that thiol/disulphide homeostasis was impaired, and this impairment was positively correlated with body mass index in sedentary obese adults because of the higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Obesity; Oxidative stress; Thiol / disulphide homeostasis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700805

Influence of chromium supplementation on energy metabolism in horses used in policing activity
Provedor de dados: 45
Autores: Fonseca,L.A; Girardi,F.M; Coelho,C.S; Barioni,G; Rangel,V.B; Gonçalves,R.C.
The influence of chromium supplementation on some blood variables in 11 adult stallions used for policing activities was evaluated. Each animal was treated with 11mg of chromium/400kg body weight, orally, for a period of 30 days. On days 0 (before) and 30 (after) the animals were evaluated and blood samples were obtained before and after exercise. Plasma glucose and lactate and serum cortisol and insulin were analyzed in each of these moments. On day 0, plasma glucose concentrations were 68.4±5.6mg/dL and 78.7±6.5mg/dL; plasma lactate concentrations were 6.2±0.6mg/dL and 13.1±7.6mg/dL; serum cortisol values were 48.5±7.9ng/mL and 42.6±19.7ng/mL; and serum insulin values were 3.0±6.4µUI/mL and 1.9±1.7µUI/mL, respectively, before and after exercise. On day...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Equine; Biochemistry; Chromium; Exercise.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000500019

Effect of exercise on occurrence of diurnal rhythms of plasma ions and metabolites in Thoroughbred racehorses
Provedor de dados: 45
Autores: Viana,P.C.R.; Caldas-Bussiere,M.C.; Marins,R.S.Q.S.; Menna-Barreto,L.S.; Cury,L.J.
Records of plasma calcium (Ca++), phosphorus (Pi), potassium (K+), sodium (Na+), chloride (Cl-), magnesium (Mg++), iron (Fe++), glucose, cholesterol, triglycerides and total protein levels were measured to determine the effects of exercise on occurrence of diurnal rhythms in Throughbred racehorses (n=7) under physical training. Physical activities consisted of gallop on the track and walking. Blood samples were collected from jugular vein every 4h over a 48h period. Plasma Ca++, K+, Mg++ and Na+ levels were obtained by flame photometry; and, Pi, Cl-, Fe++, glucose, cholesterol, triglycerides and total protein levels were measured by colorimetric tests using visible UV spectrophotometry. The data were analyzed using a 24h period to each exercise performed....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horse; Chronobiology; Exercise; Ions; Metabolites; Diurnal rhythms.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000400006

Creatine supplementation in trained rats causes changes in myenteric neurons and intestinal wall morphometry
Provedor de dados: 47
Autores: Franzói De Moraes,Solange Marta; Brogio,Thais Andréia; Nelisis Zanoni,Jacqueline; Vicente Umada Zapater,Mariana Cristina; Barnabé Peres,Sidney; Hernandes,Luzmarina.
Creatine is widely used by athletes as an ergogenic resource. The aim of this study was to evaluate the influence of creatine supplementation on the duodenum of rats submitted to physical training. The number and myenteric neuronal cell bodies as well mucosal and muscular tunic morphometry were evaluated. Control animals received a standard chow for 8 weeks, and the treated ones received the standard chow for 4 weeks and were later fed with the same chow but added with 2% creatine. Animals were divided in groups: sedentary, sedentary supplemented with creatine, trained and trained supplemented with creatine. The training consisted in treadmill running for 8 weeks. Duodenal samples were either processed for whole mount preparations or for paraffin embedding...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutritional supplementation; Duodenum; Exercise.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452013000200004

Oxidative stress during rehabilitation from protein malnutrition associated with aerobic exercise in rats
Provedor de dados: 52
Autores: Prada,Francisco José Andriotti; Macedo,Denise Vaz; Mello,Maria Alice Rostom de.
This study was designed to evaluate biomarkers of oxidative stress in rats with or without aerobic exercise during recovery from protein malnutrition. From the 30th to the 90th day of life, male Wistar rats were fed a low protein diet (LP + 6%) followed by a normal protein diet (NP = 17%) until the 120th day and separated in two groups: sedentary (S) and exercise trained (E = swimming 1h/day, 5 days/week, with from the 90th to the 120th day). Rats fed a normal protein diet were used as controls. Results showed that physical exercise had beneficial effects on body weight gain during nutrition rehabilitation. Erythrocytes catalase and glutathione reductase (biomarkers of the antioxidant system) were significantly reduced in all groups in comparison to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protein malnutrition; Nutritional recovery; Exercise; Oxidative stress.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000100006

Association Between Exercise and Treatment with Liraglutide in Obese Rats by Cafeteria Diet
Provedor de dados: 52
Autores: Didek,Daiane; Cordeiro,Maiara Mikuska; Xavier,João Lucas de Paula; Ribeiro,Paulo Roberto; Rentz,Thiago; Franco,Gilson Cesar Nobre; Kanunfre,Carla Cristine; Emilio,Henriette Rosa de Oliveira; Scomparin,Dionízia Xavier.
Abstract The objective of this study was to evaluate the effect of liraglutide, an analog of glucagon-like peptide-1 (GLP-1) in association with physical exercise, on the metabolic and biochemical parameters of rats induced to obesity with a cafeteria diet. Male Wistar rats, aged 21 days, were randomly divided into: Controls (CON) receiving standard feed and water ad libitum; and obese (OBESE) receiving cafeteria diet ad libitum, added to the standard diet. Groups were then subdivided into: Liraglutide animals that received subcutaneous injections of liraglutide from 80 to 90 days of life; exercised (EXE) animals submitted to swimming sessions, three days a week (15 min); and liraglutide + EXE animals that received liraglutide in association with physical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Obesity; Liraglutide; GLP-1; Metabolic syndrome; Exercise.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100305

Spirulina platensis Enhances the Beneficial Effect of Exercise on Oxidative Stress and the Lipid Profile in Rats
Provedor de dados: 52
Autores: Mazzola,Daiane; Fornari,Fernando; Vigano,Gabriela; Oro,Tatiana; Costa,Jorge Alberto Vieira; Bertolin,Telma Elita.
ABSTRACT This study aimed to evaluate the effect of Spirulina platensis and moderate exercise on oxidative stress and lipid profiles in the rats. Forty male Wistar rats were allocated to the following 10-week treatments, three times a week: exercise (E, 30 min swimming),S. platensis (SP, 26 mg/Kg); exercise andSpirulina (ES); and control (C). Outcomes were Thiobarbituric Acid Reactive Substances (TBARS) in serum and brain, and cholesterol and triglycerides (TG) in serum. Rats treated with exercise showed lower brain TBARS than the controls, mostly in association withS. platensis. In the groups E and ES, serum TBARS decreased after intervention. Compared with the controls, both E and ES prevented an increase in cholesterol and reduced triglycerides. Results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Antioxidant; Cholesterol; Lipid peroxidation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000600961

Serum cortisol, lactate and creatinine concentrations in Thoroughbred fillies of different ages and states of training
Provedor de dados: 62
Autores: Nogueira,Guilherme de Paula; Barnabe,Renato Campanarut; Bedran-de-Castro,João César; Moreira,Alankardison Ferreira; Fernandes,Wilson Roberto; Mirandola,Regina Mieko Sakata; Howard,Denise Louise.
Exercise can be defined as "normal stress" stimulating body functions. Some reports suggest lactate as a stimulator of cortisol levels, while creatinine varies according to the amount of muscle tissue. In the present study we investigated the relationship between creatinine, serum lactate concentration and cortisol levels in training horses. Twenty-three Thoroughbred fillies were used, divided into 3 groups according to age and training protocol: G1, 1-2 years of age (N=7) on pasture, G2, 2-3 years (N=9) starting to be mounted, and G3, 3-4 years (N=7) racing at the Jockey Club. Blood samples were collected weekly during a six-month period at about 1:00 p.m. while the animals were resting. Cortisol was quantified with a commercial kit (Coat-a Count®) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydrocortisone; Horses; Lactates; Creatinine; Exercise.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000100010

Effect of physical training on liver expression of activin A and follistatin in a nonalcoholic fatty liver disease model in rats
Provedor de dados: 56
Autores: Silva,R.N.; Bueno,P.G.; Avó,L.R.S.; Nonaka,K.O.; Selistre-Araújo,H.S.; Leal,A.M.O.
Nonalcoholic fatty liver disease (NAFLD) is characterized by fat accumulation in the liver and is associated with obesity and insulin resistance. Activin A is a member of the transforming growth factor beta (TGF)-β superfamily and inhibits hepatocyte growth. Follistatin antagonizes the biological actions of activin. Exercise is an important therapeutic strategy to reduce the metabolic effects of obesity. We evaluated the pattern of activin A and follistatin liver expression in obese rats subjected to swimming exercise. Control rats (C) and high-fat (HF) diet-fed rats were randomly assigned to a swimming training group (C-Swim and HF-Swim) or a sedentary group (C-Sed and HF-Sed). Activin βA subunit mRNA expression was significantly higher in HF-Swim than in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Activin A; Follistatin; Steatosis; Nonalcoholic fatty liver disease; Obesity; Exercise.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000900746

Effects of submaximal exercise with water ingestion on intraocular pressure in healthy human males
Provedor de dados: 56
Autores: Moura,M.A.; Rodrigues,L.O.C.; Waisberg,Y.; de Almeida,H.G.; Silami-Garcia,E.
The effects of exercise and water replacement on intraocular pressure (IOP) have not been well established. Furthermore, it is not known whether the temperature of the fluid ingested influences the IOP response. In the present study we determined the effect of water ingestion at three temperatures (10, 24 and 38ºC; 600 ml 15 min before and 240 ml 15, 30 and 45 min after the beginning of each experimental session) on the IOP of six healthy male volunteers (age = 24.0 ± 3.5 years, weight = 67.0 ± 4.8 kg, peak oxygen uptake (VO2peak) = 47.8 ± 9.1 ml kg-1 min-1). The subjects exercised until exhaustion on a cycle ergometer at a 60% VO2peak in a thermoneutral environment. IOP was measured before and after exercise and during recovery (15, 30 and 45 min) using...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Exercise; Intraocular pressure; Thermal regulation; Water ingestion.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000100017

Plasma brain-derived neurotrophic factor is higher after combat training (Randori) than incremental ramp test in elite judo athletes
Provedor de dados: 56
Autores: Schor,B.; Silva,S. Gomes da; Almeida,A.A. de; Pereira,C.A.B.; Arida,R.M.
Elite judo demands high levels of physical and psychological skills. The brain-derived neurotrophic factor (BDNF) may be of particular interest in sports medicine for its ability to promote neuroplasticity. We investigated the plasma BDNF before and after a judo training session (Randori) and the maximal incremental ramp test (MIRT) in athletes from the Brazilian national judo team and compared the results between both exercise stimuli and sexes. Fifty-six elite judo athletes were recruited who performed each task on a separated day. Anthropometric, physiological, athletic parameters, and plasma BDNF levels were measured before and after the tasks (Randori and MIRT). The groups presented similar anthropometric and physiological characteristics at baseline...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Judo; BDNF; Elite athletes; Neuroplasticity; Randori; Exercise.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000400601

Effects of chronic treadmill training on body mass gain and visceral fat accumulation in overfed rats
Provedor de dados: 56
Autores: Dantas,E.M.; Pimentel,E.B.; Gonçalves,C.P.; Lunz,W.; Rodrigues,S.L.; Mill,J.G.
This study evaluated the effects of chronic treadmill training on body mass gain and visceral fat accumulation in overfed rats. Overfeeding was induced by reducing the litter size to 3 male pups per mother during the suckling period. The litter size of control rats was adjusted to 10 male pups per mother. Seven weeks after birth overfed and normally fed rats were selected and assigned to a sedentary protocol or to a low-intensity treadmill training protocol (60 min, 5 times/week, for 9 weeks). Four groups (overfed sedentary, N = 23; normally fed sedentary, N = 32; overfed exercised, N = 18, and normally fed exercised, N = 18) were evaluated at 18 weeks. Data are reported as means ± SEM. Initial body weight was similar in control and overfed rats [8.0 ± 0.2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Obesity; Exercise; Abdominal fat; Overfeeding.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000500014

Reliability and validity of heart rate variability threshold assessment during an incremental shuttle-walk test in middle-aged and older adults
Provedor de dados: 56
Autores: Dourado,V.Z.; Guerra,R.L.F.
Studies on the assessment of heart rate variability threshold (HRVT) during walking are scarce. We determined the reliability and validity of HRVT assessment during the incremental shuttle walk test (ISWT) in healthy subjects. Thirty-one participants aged 57 ± 9 years (17 females) performed 3 ISWTs. During the 1st and 2nd ISWTs, instantaneous heart rate variability was calculated every 30 s and HRVT was measured. Walking velocity at HRVT in these tests (WV-HRVT1 and WV-HRVT2) was registered. During the 3rd ISWT, physiological responses were assessed. The ventilatory equivalents were used to determine ventilatory threshold (VT) and the WV at VT (WV-VT) was recorded. The difference between WV-HRVT1 and WV-HRVT2 was not statistically significant (median and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heart rate variability; Exercise; Walking; Adults.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000200194

Comparison of the Polar S810i monitor and the ECG for the analysis of heart rate variability in the time and frequency domains
Provedor de dados: 56
Autores: Vanderlei,L.C.M.; Silva,R.A.; Pastre,C.M.; Azevedo,F.M.; Godoy,M.F.
The aim of the present study was to compare heart rate variability (HRV) at rest and during exercise using a temporal series obtained with the Polar S810i monitor and a signal from a LYNX® signal conditioner (BIO EMG 1000 model) with a channel configured for the acquisition of ECG signals. Fifteen healthy subjects aged 20.9 ± 1.4 years were analyzed. The subjects remained at rest for 20 min and performed exercise for another 20 min with the workload selected to achieve 60% of submaximal heart rate. RR series were obtained for each individual with a Polar S810i instrument and with an ECG analyzed with a biological signal conditioner. The HRV indices (rMSSD, pNN50, LFnu, HFnu, and LF/HF) were calculated after signal processing and analysis. The unpaired...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heart rate variability; Autonomic nervous system; Exercise; Spectral analysis; ECG; Polar S810i monitor.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001000004

Tai Chi versus routine exercise in patients with early- or mild-stage Parkinson's disease: a retrospective cohort analysis
Provedor de dados: 56
Autores: Li,Quanhao; Liu,Jinmei; Dai,Fei; Dai,Fengling.
Parkinson's disease cannot be cured but symptoms can be improved by making use of physical therapy. The objective of the study was to compare the effect of routine exercises and Tai Chi on physical and clinical performance in elderly people suffering from Parkinson's disease. Data from interviews, physical and clinical performance, and levodopa consumption of 500 patients with confirmed Parkinson's disease (severity level I to III) were collected and analyzed. Participants who received 80 min/day Tai Chi 3 times/week for 2 months were included in the Tai Chi (TC) group (n=250) and those who received 90 min/day routine exercise 3 times/week for 2 months were included in routine exercise (RE) group (n=250). Timed up-and-go, 50-foot speed walk, and functional...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Fall; Levodopa; Parkinson's disease; Physical therapy; Tai Chi.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200606

Breathing pattern and thoracoabdominal motion during exercise in chronic obstructive pulmonary disease
Provedor de dados: 56
Autores: Alves,G.S.; Britto,R.R.; Campos,F.C.; Vilaça,A.B.O.; Moraes,K.S.; Parreira,V.F.
Subjects with chronic obstructive pulmonary disease (COPD) present breathing pattern and thoracoabdominal motion abnormalities that may contribute to exercise limitation. Twenty-two men with stable COPD (FEV1 = 42.6 ± 13.5% predicted; age 68 ± 8 years; mean ± SD) on usual medication and with at least 5 years of diagnosis were evaluated at rest and during an incremental cycle exercise test (10 watts/2 min). Changes in respiratory frequency, tidal volume, rib cage and abdominal motion contribution to tidal volume and the phase angle that measures the asynchrony were analyzed by inductive respiratory plethysmography at rest and during three levels of exercise (30-50, 70-80, and 100% maximal work load). Repeated measures ANOVA followed by pre-planned contrasts...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breathing pattern; Chronic obstructive pulmonary disease; Exercise; Plethysmography; Ventilation.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001100001

Relationship between ventilation heterogeneity and exercise intolerance in adults with sickle cell anemia
Provedor de dados: 56
Autores: Lopes,A.J.; Marinho,C.L.; Alves,U.D.; Gonçalves,C.E.A.; Silva,P.O.; Botelho,E.C.; Bedirian,R.; Soares,A.R.; Maioli,M.C.P.
Sickle cell anemia (SCA) causes dysfunction of multiple organs, with pulmonary involvement as a major cause of mortality. Recently, there has been growing interest in the nitrogen single-breath washout (N2SBW) test, which is able to detect ventilation heterogeneity and small airway disease when the results of other pulmonary function tests (PFTs) are still normal. Thus, the objectives of the present study were to assess the heterogeneity in the ventilation distribution in adults with SCA and to determine the association between the ventilation distribution and the clinical, cardiovascular, and radiological findings. This cross-sectional study included 38 adults with SCA who underwent PFTs, echocardiography, computed tomography (CT), and 6-min walk test. To...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sickle cell anemia; Respiratory mechanics; Respiratory function tests; Ventilation; Exercise.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000800607

Central release of nitric oxide mediates antinociception induced by aerobic exercise
Provedor de dados: 56
Autores: Galdino,G.S.; Duarte,I.D.; Perez,A.C.
Nitric oxide (NO) is a soluble gas that participates in important functions of the central nervous system, such as cognitive function, maintenance of synaptic plasticity for the control of sleep, appetite, body temperature, neurosecretion, and antinociception. Furthermore, during exercise large amounts of NO are released that contribute to maintaining body homeostasis. Besides NO production, physical exercise has been shown to induce antinociception. Thus, the present study aimed to investigate the central involvement of NO in exercise-induced antinociception. In both mechanical and thermal nociceptive tests, central [intrathecal (it) and intracerebroventricular (icv)] pretreatment with inhibitors of the NO/cGMP/KATP pathway (L-NOArg, ODQ, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitric oxide; Exercise; Pain; Antinociception.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000900790

Heat storage rate and acute fatigue in rats
Provedor de dados: 56
Autores: Rodrigues,L.O.C.; Oliveira,A.; Lima,N.R.V.; Machado-Moreira,C.A.
Thermal environmental stress can anticipate acute fatigue during exercise at a fixed intensity (%VO2max). Controversy exists about whether this anticipation is caused by the absolute internal temperature (Tint, ºC), by the heat storage rate (HSR, cal/min) or by both mechanisms. The aim of the present study was to study acute fatigue (total exercise time, TET) during thermal stress by determining Tint and HSR from abdominal temperature. Thermal environmental stress was controlled in an environmental chamber and determined as wet bulb globe temperature (ºC), with three environmental temperatures being studied: cold (18ºC), thermoneutral (23.1ºC) or hot (29.4ºC). Six untrained male Wistar rats weighing 260-360 g were used. The animals were submitted to...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Thermoregulation; Exercise; Fatigue; Heat storage rate.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000100018

Aerobic training modulates T cell activation in elderly women with knee osteoarthritis
Provedor de dados: 56
Autores: Gomes,W.F.; Lacerda,A.C.R.; Brito-Melo,G.E.A.; Fonseca,S.F.; Rocha-Vieira,E.; Leopoldino,A.A.O.; Amorim,M.R.; Mendonça,V.A.
Osteoarthritis of the knee (kOA) is a disease that mainly affects the elderly and can lead to major physical and functional limitations. However, the specific effects of walking, particularly on the immune system, are unknown. Therefore, this study aimed to analyze the effect of 12 weeks of walking (3×/week) on the leukocyte profile and quality of life (QL) of elderly women with kOA. Sixteen women (age: 67±4 years, body mass index: 28.07±4.16 kg/m2) participated in a walking program. The variables were assessed before and after 12 weeks of training with a progressively longer duration (30–55 min) and higher intensity (72–82% of HRmax determined using a graded incremental treadmill test). The QL was assessed using the Medical Outcomes Study 36-Item Short...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osteoarthritis; Elderly; Exercise; CD4-positive T-lymphocytes; CD8-positive T-lymphocytes.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001100705

Luteal phase of the menstrual cycle increases sweating rate during exercise
Provedor de dados: 56
Autores: Garcia,A.M.C.; Lacerda,M.G.; Fonseca,I.A.T.; Reis,F.M.; Rodrigues,L.O.C.; Silami-Garcia,E.
The present study evaluated whether the luteal phase elevation of body temperature would be offset during exercise by increased sweating, when women are normally hydrated. Eleven women performed 60 min of cycling exercise at 60% of their maximal work load at 32ºC and 80% relative air humidity. Each subject participated in two identical experimental sessions: one during the follicular phase (between days 5 and 8) and the other during the luteal phase (between days 22 and 25). Women with serum progesterone &gt;3 ng/mL, in the luteal phase were classified as group 1 (N = 4), whereas the others were classified as group 2 (N = 7). Post-exercise urine volume (213 ± 80 vs 309 ± 113 mL) and specific urine gravity (1.008 ± 0.003 vs 1.006 ± 0.002) changed (P &lt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thermoregulation; Sweating rate; Exercise; Menstrual cycle; Body temperature.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000900014

Biomechanics and structural adaptations of the rat femur after hindlimb suspension and treadmill running
Provedor de dados: 56
Autores: Shimano,M.M.; Volpon,J.B.
We microscopically and mechanically evaluated the femurs of rats subjected to hindlimb unloading (tail suspension) followed by treadmill training. Female Wistar rats were randomly divided into five groups containing 12-14 rats: control I (118 days old), control II (139 days old), suspended (tail suspension for 28 days), suspended-released (released for 21 days after 28 days of suspension), and suspended-trained (trained for 21 days after 28 days of suspension). We measured bone resistance by bending-compression mechanical tests of the entire proximal half of the femur and three-point bending tests of diaphyseal cortical bone. We determined bone microstructure by tetracycline labeling of trabecular and cortical bone. We found that tail suspension weakened...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hindlimb suspension; Exercise; Biomechanics; Femur; Rat.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000400004

Cardiorespiratory and metabolic determinants during moderate and high resistance exercise intensities until exhaustion using dynamic leg press: comparison with critical load
Provedor de dados: 56
Autores: Arakelian,V.M.; Goulart,C.L.; Mendes,R.G.; Caruso,F.C.; Baldissera,V.; Arena,R.; Borghi-Silva,A.
The objective of this study was to assess cardiovascular, respiratory, and metabolic responses during a commonly used dynamic leg press resistance exercise until exhaustion (TEx) at different intensities and compare with critical load (CL). This was a prospective, cross-sectional, controlled, and crossover study. Twelve healthy young men (23±2.5 years old) participated. The subjects carried out three bouts of resistance exercise in different percentages of 1 repetition maximum (60, 75, and 90% 1RM) until TEx. CL was obtained by means of hyperbolic model and linearization of the load-duration function. During all bout intensities, oxygen uptake (VO2), carbon dioxide production (VCO2), ventilation (VE), and respiratory exchange ratio (RER) were obtained....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Load; Physiological; Muscle fatigue; Exercise; Cardiorespiratory.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018001100613

Intensity and physiological responses to the 6-minute walk test in middle-aged and older adults: a comparison with cardiopulmonary exercise testing
Provedor de dados: 56
Autores: Sperandio,E.F.; Arantes,R.L.; Matheus,A.C.; Silva,R.P.; Lauria,V.T.; Romiti,M.; Gagliardi,A.R.T.; Dourado,V.Z.
The 6-minute walk test (6MWT) is a simple field test that is widely used in clinical settings to assess functional exercise capacity. However, studies with healthy subjects are scarce. We hypothesized that the 6MWT might be useful to assess exercise capacity in healthy subjects. The purpose of this study was to evaluate 6MWT intensity in middle-aged and older adults, as well as to develop a simple equation to predict oxygen uptake (      V ˙ O 2) from the 6-min walk distance (6MWD). Eighty-six participants, 40 men and 46 women, 40-74 years of age and with a mean body mass index of 28±6 kg/m2, performed the 6MWT according to American Thoracic Society guidelines. Physiological responses were evaluated during the 6MWT using a K4b2 Cosmed telemetry gas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Walking; Gas exchange.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000400349

Effects of resistance training protocols on nonlinear analysis of heart rate variability in metabolic syndrome
Provedor de dados: 56
Autores: Turri-Silva,N.; Garner,D.M.; Moosavi,S.H.; Ricci-Vitor,A.L.; Christofaro,D.G.D.; Netto Junior,J.; Vanzella,L.M.; Vanderlei,L.C.M.
Despite the various standard non-linear measurements used in autonomic modulation (AM) assessments usually being applied to long time-series, such analyses can sometimes be applied to shorter term series. To overcome this disadvantage, chaotic global methods were formulated by putting together heart rate variability (HRV) linear methods. Chaos provides information about vegetative function control related to cardiovascular risks. Applying this method can be useful to investigate the complexity of the health condition after resistance training protocols, as a therapeutic intervention in AM in metabolic syndrome individuals (MetS). This study aimed to compare the effects of two resistance training programs (conventional vs functional) in MetS using nonlinear...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autonomic modulation; Nonlinear dynamics; Metabolic syndrome; Resistance training; Exercise.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000800610

Is the Thoroughbred race-horse under chronic stress?
Provedor de dados: 56
Autores: Nogueira,G.P.; Barnabe,R.C.
Thoroughbred fillies were divided into three groups according to age: group 1, 7 fillies aged 1 to 2 years (G1) starting the training program; group 2, 9 fillies aged 2 to 3 years (G2) in a full training program; group 3, 8 older fillies 3 to 4 years of age (G3) training and racing. Blood samples were collected weekly from July to December. Cortisol was quantified using a solid phase DPC kit. The intra- and interassay coefficients of variation were 12.5% and 15.65% and sensitivity was 1.9 ± 0.2 nmol/l. The semester average of cortisol levels varied between groups: G1 = 148.8 ± 6.7, G2 = 125.7 ± 5.8, G3 = 101.1 ± 5.4 nmol/l, with G3 differing statistically from the other groups. The lower cortisol levels observed in the older fillies lead us to propose that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horses; Cortisol; Exercise; Chronic stress.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001000016

Does the incremental shuttle walk test require maximal effort in young obese women?
Provedor de dados: 56
Autores: Jürgensen,S.P.; Trimer,R.; Di Thommazo-Luporini,L.; Dourado,V.Z.; Bonjorno-Junior,J.C.; Oliveira,C.R.; Arena,R.; Borghi-Silva,A.
Obesity is a chronic disease with a multifaceted treatment approach that includes nutritional counseling, structured exercise training, and increased daily physical activity. Increased body mass elicits higher cardiovascular, ventilatory and metabolic demands to varying degrees during exercise. With functional capacity assessment, this variability can be evaluated so individualized guidance for exercise training and daily physical activity can be provided. The aim of the present study was to compare cardiovascular, ventilatory and metabolic responses obtained during a symptom-limited cardiopulmonary exercise test (CPX) on a treadmill to responses obtained by the incremental shuttle walk test (ISWT) in obese women and to propose a peak oxygen consumption...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Incremental shuttle walk test; Exercise; Obesity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000800703

Validation of transit-time flowmetry for chronic measurements of regional blood flow in resting and exercising rats
Provedor de dados: 56
The objective of the present study was to validate the transit-time technique for long-term measurements of iliac and renal blood flow in rats. Flow measured with ultrasonic probes was confirmed ex vivo using excised arteries perfused at varying flow rates. An implanted 1-mm probe reproduced with accuracy different patterns of flow relative to pressure in freely moving rats and accurately quantitated the resting iliac flow value (on average 10.43 ± 0.99 ml/min or 2.78 ± 0.3 ml min-1 100 g body weight-1). The measurements were stable over an experimental period of one week but were affected by probe size (resting flows were underestimated by 57% with a 2-mm probe when compared with a 1-mm probe) and by anesthesia (in the same rats, iliac flow was reduced by...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Ultrasonic transit-time; Iliac blood flow; Renal blood flow; Exercise; Anesthesia; Conscious rats.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000700013

A practical approach to assess leg muscle oxygenation during ramp-incremental cycle ergometry in heart failure
Provedor de dados: 56
Autores: Barroco,A.C.; Sperandio,P.A.; Reis,M.; Almeida,D.R.; Neder,J.A.
Heart failure is characterized by the inability of the cardiovascular system to maintain oxygen (O2) delivery (i.e., muscle blood flow in non-hypoxemic patients) to meet O2 demands. The resulting increase in fractional O2 extraction can be non-invasively tracked by deoxygenated hemoglobin concentration (deoxi-Hb) as measured by near-infrared spectroscopy (NIRS). We aimed to establish a simplified approach to extract deoxi-Hb-based indices of impaired muscle O2 delivery during rapidly-incrementing exercise in heart failure. We continuously probed the right vastus lateralis muscle with continuous-wave NIRS during a ramp-incremental cardiopulmonary exercise test in 10 patients (left ventricular ejection fraction &lt;35%) and 10 age-matched healthy males....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heart failure; Exercise; Oxygen; Muscle; Near-infrared spectroscopy.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200603

Acute exercise performed close to the anaerobic threshold improves cognitive performance in elderly females
Provedor de dados: 56
Autores: Córdova,C.; Silva,V.C.; Moraes,C.F.; Simões,H.G.; Nóbrega,O.T.
The objective of the present study was to compare the effect of acute exercise performed at different intensities in relation to the anaerobic threshold (AT) on abilities requiring control of executive functions or alertness in physically active elderly females. Forty-eight physically active elderly females (63.8 ± 4.6 years old) were assigned to one of four groups by drawing lots: control group without exercise or trial groups with exercise performed at 60, 90, or 110% of AT (watts) and submitted to 5 cognitive tests before and after exercise. Following cognitive pretesting, an incremental cycle ergometer test was conducted to determine AT using a fixed blood lactate concentration of 3.5 mmol/L as cutoff. Acute exercise executed at 90% of AT resulted in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aging; Alert; Anaerobic threshold; Exercise; Executive functions; Response time test.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000500010

Thermoregulation in hypertensive men exercising in the heat with water ingestion
Provedor de dados: 56
Autores: Ribeiro,G.A.; Rodrigues,L.O.C.; Moreira,M.C.V.; Silami-Garcia,E.; Pascoa,M.R.S.; Camargos,F.F.O.
Hydration is recommended in order to decrease the overload on the cardiovascular system when healthy individuals exercise, mainly in the heat. To date, no criteria have been established for hydration for hypertensive (HY) individuals during exercise in a hot environment. Eight male HY volunteers without another medical problem and 8 normal (NO) subjects (46 ± 3 and 48 ± 1 years; 78.8 ± 2.5 and 79.5 ± 2.8 kg; 171 ± 2 and 167 ± 1 cm; body mass index = 26.8 ± 0.7 and 28.5 ± 0.6 kg/m²; resting systolic (SBP) = 142.5 and 112.5 mmHg and diastolic blood pressure (DBP) = 97.5 and 78.1 mmHg, respectively) exercised for 60 min on a cycle ergometer (40% of VO2peak) with (500 ml 2 h before and 115 ml every 15 min throughout exercise) or without water ingestion, in a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hypertension; Exercise; Water ingestion; Heat; Thermoregulation.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000300019

Effects of endurance training on reduction of plasma glucose during high intensity constant and incremental speed tests in Wistar rats
Provedor de dados: 56
Autores: Abreu,P.; Vitzel,K.F.; Monteiro,I.C.C.R.; Lima,T.I.; Queiroz,A.N.; Leal-Cardoso,J.H.; Hirabara,S.M.; Ceccatto,V.M.
The aim of this research was to investigate the effects of endurance training on reduction of plasma glucose during high intensity constant and incremental speed tests in Wistar rats. We hypothesized that plasma glucose might be decreased in the exercised group during heavy (more intense) exercise. Twenty-four 10-week-old male Wistar rats were randomly assigned to sedentary and exercised groups. The prescription of endurance exercise training intensity was determined as 60% of the maximum intensity reached at the incremental speed test. The animals were trained by running on a motorized treadmill, five days/week for a total period of 67 weeks. Plasma glucose during the constant speed test in the exercised group at 20 m/min was reduced at the 14th, 21st and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Skeletal muscle; Liver; Blood glucose; Training.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001100602

Effects of physical exercise on skeletal muscles of rats with cerebral ischemia
Provedor de dados: 56
Autores: Melo,R.T.R.; Damázio,L.C.M.; Lima,M.C.; Pereira,V.G.; Okano,B.S.; Monteiro,B.S.; Natali,A.J.; Carlo,R.J. Del; Maldonado,I.R.S.C.
Physical exercise is a known preventive and therapeutic alternative for several cerebrovascular diseases. Therefore, the objective of the present study was to evaluate the motor performance and histomorphometry of the biceps brachii, soleus, and tibialis anterior muscles of rats submitted to a treadmill training program prior to the induction of cerebral ischemia via occlusion of the middle cerebral artery (OMCA). A total of 24 Wistar rats were distributed into four groups: Sham-Sed: sedentary control animals (n=6), who underwent sham surgery (in which OMCA did not occur); Sham+Ex: control animals exercised before the sham surgery (n=6); I-Sed: sedentary animals with cerebral ischemia (n=6); and I+Ex: animals exercised before the induction of ischemia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Muscles; Cerebral ischemia; Exercise; Movement; Rats; Atrophy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019001200607

Genetic and environmental influences on blood pressure and physical activity: a study of nuclear families from Muzambinho, Brazil
Provedor de dados: 56
Autores: Forjaz,C.L.M.; Bartholomeu,T.; Rezende,J.A.S.; Oliveira,J.A.; Basso,L.; Tani,G.; Prista,A.; Maia,J.A.R.
Blood pressure (BP) and physical activity (PA) levels are inversely associated. Since genetic factors account for the observed variation in each of these traits, it is possible that part of their association may be related to common genetic and/or environmental influences. Thus, this study was designed to estimate the genetic and environmental correlations of BP and PA phenotypes in nuclear families from Muzambinho, Brazil. Families including 236 offspring (6 to 24 years) and their 82 fathers and 122 mothers (24 to 65 years) were evaluated. BP was measured, and total PA (TPA) was assessed by an interview (commuting, occupational, leisure time, and school time PA). Quantitative genetic modeling was used to estimate maximal heritability (h²), and genetic and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Hypertension; Environmental influence; Heritability; Genetic epidemiology.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001200023

Ginseng administration protects skeletal muscle from oxidative stress induced by acute exercise in rats
Provedor de dados: 56
Autores: Voces,J.; Cabral de Oliveira,A.C.; Prieto,J.G.; Vila,L.; Perez,A.C.; Duarte,I.D.G.; Alvarez,A.I.
Enzymatic activity was analyzed in the soleus, gastrocnemius (red and white) and plantaris muscles of acutely exercised rats after long-term administration of Panax ginseng extract in order to evaluate the protective role of ginseng against skeletal muscle oxidation. Ginseng extract (3, 10, 100, or 500 mg/kg) was administered orally for three months to male Wistar rats weighing 200 ± 50 g before exercise and to non-exercised rats (N = 8/group). The results showed a membrane stabilizing capacity of the extract since mitochondrial function measured on the basis of citrate synthase and 3-hydroxyacyl-CoA dehydrogenase activities was reduced, on average, by 20% (P &lt; 0.05) after exercise but the activities remained unchanged in animals treated with a ginseng...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Panax ginseng; Exercise; Free radicals; Lipid peroxidation; Glutathione status; Mitochondria.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004001200012

Catecholamine response to exercise in individuals with different levels of paraplegia
Provedor de dados: 56
Autores: Steinberg,L.L.; Lauro,F.A.A.; Sposito,M.M.M.; Tufik,S.; Mello,M.T.; Naffah-Mazzacoratti,M.G.; Cavalheiro,E.A.; Silva,A.C.
The purpose of this study was to investigate the effect of the level of injury on the serum level of norepinephrine (Nor) and epinephrine (Epi) at rest and after maximal exercise in individuals with paraplegia. Twenty-six male spinal cord-injured subjects with complete paraplegia for at least 9 months were divided into two groups of 13 subjects each according to the level of injury, i.e., T1-T6 and T7-T12. Serum Nor and Epi concentrations were measured by HPLC-ECD, at rest (PRE) and immediately after a maximal ergospirometric test (POST). Statistical analysis was performed using parametric and non-parametric tests. Maximal heart rate, peak oxygen uptake, and PRE and POST Nor were lower in the T1-T6 than in the T7-T12 group (166 ± 28 vs 188 ± 10 bpm; 18.0 ±...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Catecholamines; Paraplegia; Exercise; Norepinephrine; Epinephrine; Spinal cord injury.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000800007

Cardiopulmonary exercise testing variables as predictors of long-term outcome in thoracic sarcoidosis
Provedor de dados: 56
Autores: Lopes,A.J.; Menezes,S.L.S.; Dias,C.M.; Oliveira,J.F.; Mainenti,M.R.M.; Guimarães,F.S.
Cardiopulmonary exercise testing (CPET) plays an important role in the assessment of functional capacity in patients with interstitial lung disease. The aim of this study was to identify CPET measures that might be helpful in predicting the vital capacity and diffusion capacity outcomes of patients with thoracic sarcoidosis. A longitudinal study was conducted on 42 nonsmoking patients with thoracic sarcoidosis (median age = 46.5 years, 22 females). At the first evaluation, spirometry, the measurement of single-breath carbon monoxide diffusing capacity (D LCOsb) and CPET were performed. Five years later, the patients underwent a second evaluation consisting of spirometry and D LCOsb measurement. After 5 years, forced vital capacity (FVC)% and D LCOsb% had...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sarcoidosis; Exercise; Respiratory function tests; Respiratory mechanics.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000300012

Immediate effects of submaximal effort on pulse wave velocity in patients with Marfan syndrome
Provedor de dados: 56
Autores: Peres,P.; Bernardelli,G.F.; Mendes,C.C.; Fischer,S.S.C.P.M.; Servantes,D.M.; Medeiros,W.M.; Carvalho,A.C.
Marfan syndrome (MS) is a dominant autosomal disease caused by mutations in chromosome 15, the locus controlling fibrillin 1 synthesis, and may exhibit skeletal, ocular, cardiovascular, and other manifestations. Pulse wave velocity (PWV) is used to measure arterial elasticity and stiffness and is related to the elastic properties of the vascular wall. Since the practice of exercise is limited in MS patients, it was of interest to analyze the acute effect of submaximal exercise on aortic distensibility using PWV and other hemodynamic variables in patients with MS with either mild or no aortic dilatation. PWV and physiological variables were evaluated before and after submaximal exercise in 33 patients with MS and 18 controls. PWV was 8.51 ± 0.58 at rest and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Aortic elasticity; Pulse wave velocity; Marfan syndrome.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000400011

Ventilation distribution as a contributor to the functional exercise capacity in patients with systemic sclerosis-associated interstitial lung disease without pulmonary hypertension
Provedor de dados: 56
Autores: Andrade,F.M.; Oliveira,A.D.; Lopes,A.J.
Phenotypic differences have been described between patients with systemic sclerosis (SSc)-associated interstitial lung disease (ILD) and SSc-associated pulmonary hypertension, including performance differences in the 6-min walk test (6MWT). Moreover, the correlations between the 6MWT and traditional pulmonary function tests (PFTs) are weak, indicating the need to search for new parameters that explain exercise performance. Thus, our objective was to evaluate the impact of ventilation distribution heterogeneity assessed by the nitrogen single-breath washout (N2SBW) test and peripheral muscle dysfunction on the exercise capacity in patients with SSc-ILD and limited involvement of the pulmonary parenchyma. In this cross-sectional study, 20 women with SSc-ILD...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Systemic sclerosis; Respiratory function tests; Ventilation; Nitrogen single-breath washout test; Exercise; Six-minute walk test.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000800601

Effect of high-fat diets on body composition, lipid metabolism and insulin sensitivity, and the role of exercise on these parameters
Provedor de dados: 56
Autores: Coelho,D.F.; Pereira-Lancha,L.O.; Chaves,D.S.; Diwan,D.; Ferraz,R.; Campos-Ferraz,P.L.; Poortmans,J.R.; Lancha Junior,A.H.
Dietary fat composition can interfere in the development of obesity due to the specific roles of some fatty acids that have different metabolic activities, which can alter both fat oxidation and deposition rates, resulting in changes in body weight and/or composition. High-fat diets in general are associated with hyperphagia, but the type of dietary fat seems to be more important since saturated fats are linked to a positive fat balance and omental adipose tissue accumulation when compared to other types of fat, while polyunsaturated fats, omega-3 and omega-6, seem to increase energy expenditure and decrease energy intake by specific mechanisms involving hormone-sensitive lipase, activation of peroxisome proliferator-activated receptor α (PPARα) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fat; Obesity; Insulin; PUFA; Diet; Exercise.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001000001

Meal-feeding scheme: twenty years of research in Brazil
Provedor de dados: 56
Autores: Bazotte,R.B.; Batista,M.R.; Curi,R.
Naomi Shinomiya Hell was the first researcher to investigate the physiological adaptations to a meal-feeding scheme (MFS) in Brazil. Over a period of 20 years, from 1979 to 1999, Naomi's group determined the physiological and metabolic adaptations induced by this feeding scheme in rats. The group showed the persistence of such adaptations even when MFS is associated with moderate exercise training and the performance to a session of intense physical effort. The metabolic changes induced by the feeding training were discriminated from those caused by the effective fasting period. Naomi made an important contribution to the understanding of the MFS but a lot still has to be done. One crucial question still remains to be satisfactorily answered: what is the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meal-feeding scheme; Metabolism; Exercise; Fasting; Liver.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000900001

Effects of exercise and metformin on the prevention of glucose intolerance: a comparative study
Provedor de dados: 56
Autores: Molena-Fernandes,C.; Bersani-Amado,C. A.; Ferraro,Z. M.; Hintze,L. J.; Nardo Jr.,N.; Cuman,R. K. N.
We aimed to evaluate the effects of aerobic exercise training (4 days) and metformin exposure on acute glucose intolerance after dexamethasone treatment in rats. Forty-two adult male Wistar rats (8 weeks old) were divided randomly into four groups: sedentary control (SCT), sedentary dexamethasone-treated (SDX), training dexamethasone-treated (DPE), and dexamethasone and metformin treated group (DMT). Glucose tolerance tests and in situ liver perfusion were undertaken on fasting rats to obtain glucose profiles. The DPE group displayed a significant decrease in glucose values compared with the SDX group. Average glucose levels in the DPE group did not differ from those of the DMT group, so we suggest that exercise training corrects dexamethasone-induced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Glucose intolerance; Dexamethasone; Wistar rats; Diabetes mellitus; Prevention and control.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015001201101

The six-minute walk test and body weight-walk distance product in healthy Brazilian subjects
Provedor de dados: 56
Autores: Iwama,A.M.; Andrade,G.N.; Shima,P.; Tanni,S.E.; Godoy,I.; Dourado,V.Z.
We assessed the 6-min walk distance (6MWD) and body weight x distance product (6MWw) in healthy Brazilian subjects and compared measured 6MWD with values predicted in five reference equations developed for other populations. Anthropometry, spirometry, reported physical activity, and two walk tests in a 30-m corridor were evaluated in 134 subjects (73 females, 13-84 years). Mean 6MWD and 6MWw were significantly greater in males than in females (622 ± 80 m, 46,322 ± 10,539 kg.m vs 551 ± 71 m, 36,356 ± 8,289 kg.m, P &lt; 0.05). Four equations significantly overestimated measured 6MWD (range, 32 ± 71 to 137 ± 74 m; P &lt; 0.001), and one significantly underestimated it (-36 ± 86 m; P &lt; 0.001). 6MWD significantly correlated with age (r = -0.39), height (r =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Walking; Exercise; Rehabilitation; 6MWD; 6MWw.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001100013

Influence of population and exercise protocol characteristics on hemodynamic determinants of post-aerobic exercise hypotension
Provedor de dados: 56
Autores: Brito,L.C.; Queiroz,A.C.C.; Forjaz,C.L.M.
Due to differences in study populations and protocols, the hemodynamic determinants of post-aerobic exercise hypotension (PAEH) are controversial. This review analyzed the factors that might influence PAEH hemodynamic determinants, through a search on PubMed using the following key words: “postexercise” or “post-exercise” combined with “hypotension”, “blood pressure”, “cardiac output”, and “peripheral vascular resistance”, and “aerobic exercise” combined only with “blood pressure”. Forty-seven studies were selected, and the following characteristics were analyzed: age, gender, training status, body mass index status, blood pressure status, exercise intensity, duration and mode (continuous or interval), time of day, and recovery position. Data analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood pressure; Exercise; Cardiac output; Peripheral vascular resistance.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000800626

Effects of continuous vs interval exercise training on oxygen uptake efficiency slope in patients with coronary artery disease
Provedor de dados: 56
Autores: Prado,D.M.L.; Rocco,E.A.; Silva,A.G.; Rocco,D.F.; Pacheco,M.T.; Silva,P.F.; Furlan,V.
The oxygen uptake efficiency slope (OUES) is a submaximal index incorporating cardiovascular, peripheral, and pulmonary factors that determine the ventilatory response to exercise. The purpose of this study was to evaluate the effects of continuous exercise training and interval exercise training on the OUES in patients with coronary artery disease. Thirty-five patients (59.3±1.8 years old; 28 men, 7 women) with coronary artery disease were randomly divided into two groups: continuous exercise training (n=18) and interval exercise training (n=17). All patients performed graded exercise tests with respiratory gas analysis before and 3 months after the exercise-training program to determine ventilatory anaerobic threshold (VAT), respiratory compensation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coronary artery disease; Exercise; Cardiorespiratory fitness; Ventilatory efficiency.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000200703

Effect of exercise on the caloric intake of breast cancer patients undergoing treatment
Provedor de dados: 56
Autores: Battaglini,C.L.; Mihalik,J.P.; Bottaro,M.; Dennehy,C.; Petschauer,M.A.; Hairston,L.S.; Shields,E.W.
The purpose of this study was to examine the effects of an exercise intervention on the total caloric intake (TCI) of breast cancer patients undergoing treatment. A secondary purpose was to determine whether or not a relationship existed between changes in TCI, body fat composition (%BF), and fatigue during the study, which lasted 6 months. Twenty females recently diagnosed with breast cancer, scheduled to undergo chemotherapy or radiation, were assigned randomly to an experimental (N = 10) or control group (N = 10). Outcome measures included TCI (3-day food diary), %BF (skinfolds), and fatigue (revised Piper Fatigue Scale). Each exercise session was conducted as follows: initial cardiovascular activity (6-12 min), followed by stretching (5-10 min),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise; Breast cancer; Caloric intake; Fatigue; Body composition.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000800012

Voluntary wheel running: patterns and physiological effects in mice
Provedor de dados: 56
Autores: Manzanares,G.; Brito-da-Silva,G.; Gandra,P.G.
Exercise can prevent and improve the pathophysiology of diseases and promote healthy aging. Thus, understanding the mechanisms that regulate the beneficial effects of exercise may lead to the development of new strategies to enhance quality of life and to counteract chronic diseases. Voluntary wheel running is an interesting model to study the effects of exercise in mice. Compared to forced treadmill exercise, voluntary wheel running presents several advantages such as: 1) running pattern is similar to natural running behavior of mice; 2) it is performed under non-stressed conditions, according to the rhythmicity of the animal; 3) it does not require direct interference from the researcher, and can be easily applied in long-term studies. Mice run...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Voluntary wheel running; Mouse; Exercise; Skeletal muscle; Endurance adaptation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000100301

Evolution of potential biomarkers of acute muscle injury after physical exercise
Provedor de dados: 60
Autores: Chielle,Eduardo Ottobelle; Granella,Lucilene Wildner; Maziero,Jorlana Stacke; Vidigal,Tiago Mateus Andrade; Mallmann,Bárbara Lidiane Kummer; Karal,Jaison.
Skeletal muscle injury is a frequent event and diagnosis using the classical blood markers sometimes produces unsatisfactory results. Therefore, objective of the study was to detect new biomarkers in plasma, saliva and urine in response to acute muscle damage induced by physical exercise. A cross-sectional study was conducted with 27 American football players. Before the physical exercises (T0), 60 minutes (T1) and 24 hours (T2) after physical exercise, was determined the clinical, biochemical and molecular parameters, including ADA, TBARS, leukocytes, lymphocytes and comet assay. The serum ADA was significantly higher in T1 and T2, in the urine there was a significant increase in T1, in the saliva there was no significant differences. There was an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomarkers/serum; Biomarkers/saliva; Biomarkers/urine; Exercise; Athletes; Athletic injuries; Adenosine deaminase/analysis; DNA.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100549

Exercise training session-induced metabolic acidosis in barrel racing horses
Provedor de dados: 65
Autores: Gomes,Cláudio Luís Nina; Alves,Andressa Mendes; Ribeiro Filho,José Dantas; Moraes Junior,Felipe de Jesus; Chaves,Ricardo de Macedo; Aranha,Rosany Maria Cunha; Fucuta,Rodrigo Santos; Ribeiro,Bruna Maria.
ABSTRACT: In horses, acid-base balance disorders are common after intense exercise, with metabolic acidosis being the most common after high intensity and short duration exercise. Understanding the processes that cause them is fundamental for procedures, which aimed to improve the physical fitness of horses for athletic purposes, with fewer changes in homeostasis. The present study assessed the effect of barrel racing on acid base balance in Quarter Horse, at the following times: T0 - immediately before training; T1 - immediately after the end of the second course; T2 - one hour after the end of the second course. In T1, there was decrease (P&lt;0.05) in the pH, HCO3 -, pCO2, cBase, tCO2 and strong ion difference concentrations, while the plasma lactate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horse; Exercise; Acidosis; Lactate; Barrel racing.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000500601

Occurrence of gastric ulcers in horses exercised on a treadmill
Provedor de dados: 65
Autores: Ribeiro,Gesiane; Silva,Luis Cláudio Lopes Correia da; Belli,Carla Bargi; Vargas,Leonardo Paiao; Piffer,Maria Letícia Tescaro; Mirian,Maurício; Souza,Vanessa Aparecida Feijó de; Fernandes,Wilson Roberto.
ABSTRACT: The most frequently causes of gastric ulcers in horses are fasting, feeding type and management, as well as administration of certain medications. More recently, exercise has also been identified as an important factor in the development of gastric lesions in athlete horses. The purpose of the present study was to assess whether treadmill exercise predisposes the horses to the occurrence of gastric ulcers. Five Arabian horses underwent a twelve-week training period on a treadmill and a gastroscopic evaluation before and after the training period. All animals showed gastric lesions after the training period. Based on these results, it is concluded that Arabian horses undergoing exercise on a treadmill may develop gastric lesions varying in number...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arabian horses; Exercise; Gastric lesions; Stress.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000500909

Yeast as a feed additive for training horses
Provedor de dados: 64
Autores: Rezende,Adalgiza Souza Carneiro de; Trigo,Pablo; Lana,Ângela Maria Quintão; Santiago,Juliano Martins; Silva,Vinicius Pimentel; Montijano,Francisco Castejón.
This research analyses the yeast supplementation effect on the digestibility of nutrients and metabolic performance in training horses. Twelve horses were assigned into 2 groups: Pr (20 g of probiotics daily per horse) and control. The diet consisted of roughage (haylage) and commercial rations and all horses were trained for 6 weeks. LIPE® indicator was used during 7 days and feces collected for five days to determine nutrient digestibility. DM, CP, DE, P, NDF, ADF, HCEL and lignin were determined. All horses were subjected to incremental ergospirometry test before and at the end of training. Horses that received live yeast showed an increase (p&lt;0.05) of 4.1% in the digestibility of HCEL. After training, both horse groups presented higher tolerance to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutritional additives; Equine; Exercise; Probiotics.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000300012