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	Provedor de dados BJMBR (43) Arq. Bras. Med. Vet. Zootec. (2) Biol. Res. (2) BABT (2) ArchiMer (1) Ciência Rural (1) J. Venom. Anim. Toxins incl. Trop. Dis. (1) Mais... Autor Futuro Neto,H.A. (4) Pires,J.G.P. (4) Forjaz,C.L.M. (3) Silva,N.F. (3) Brito,J.O. (2) Cabral,A.M. (2) Campos,R.R. (2) Colombari,E. (2) Da Costa,C.P. (2) De Angelis,K. (2) Duarte,D.P.F. (2) Gilmore,D.P. (2) Giorgi,D.M.A. (2) Gontijo,J.A.R. (2) Irigoyen,M.C. (2) Isbil-Buyukcoskun,N. (2) Jaguaribe,A.M. (2) Krieger,E.M. (2) Negrão,C.E. (2) Ozluk,K. (2) Mais... Palavra-chave Blood pressure (52) Heart rate (10) Baroreflex (3) Baroreflex sensitivity (3) Caudal pressor area (3) Circadian rhythm (3) Hypertension (3) Nitric oxide (3) Angiotensin receptors (2) Arrhythmia (2) Electrocardiography (2) Insulin resistance (2) L-arginine (2) L-glutamate (2) Rat (2) Respiration (2) Rostral ventrolateral medulla (2) Sympathetic nerve activity (2) Ventrolateral medulla (2) 24-h urine collection (1) Mais... Tipo do documento Info:eu-repo/semantics/article (39) Info:eu-repo/semantics/other (8) Journal article (2) Info:eu-repo/semantics/report (1) Text (1) Ano 2018 (1) 2017 (1) 2016 (2) 2015 (2) 2014 (2) 2012 (4) 2011 (1) 2010 (1) 2009 (1) 2008 (4) 2006 (1) 2005 (6) 2004 (1) 2003 (5) 2002 (4) 2001 (6) 2000 (3) 1999 (2) 1998 (4) 1997 (1) Mais... País Brazil (49) Chile (2) France (1) Idioma Inglês (52)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 52 Primeira ... 1 2 3 ... Última Cardiac preload and venous return in swimming sea bass (Dicentrarchus labrax L.) ArchiMer Sandblom, Erik; Farrell, Anthony; Altimiras, Jordi; Axelsson, Michael; Claireaux, Guy. Cardiac preload (central venous; pressure, Pcv), mean circulatory filling pressure (MCFP), dorsal aortic blood pressure (P-DA) and relative cardiac output (Q) were measured in sea bass (Dicentrarchus labrax) at rest and while swimming at 1 and 2 BL s(-1). MCFP, an index of venous capacitance and the upstream venous pressure driving the return of venous blood to the heart, was measured as the plateau in Pcv during ventral aortic occlusion. Compared with resting values, swimming at 1 and 2BL s(-1) increased Q (by 15 +/- 1.5 and 38 +/- 6.5%, respectively), Pcv (from 0.11 +/- 0.01 kPa to 0.12 +/- 0.01 and 0.16 +/- 0.02 kPa, respectively), MCFP (from 0.27 +/- 0.02 kPa to 0.31 +/- 0.02 and 0.40 +/- 0.04 kPa, respectively) and the calculated pressure gradient for... Tipo: Text Palavras-chave: Blood pressure; Cardiac rythm; Swimming aquaculture; Sea bass. Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-421.pdf Investigations on the role of insulin and scorpion antivenom in scorpion envenoming syndrome J. Venom. Anim. Toxins incl. Trop. Dis. Radha Krishna Murthy,K.; As,Dubey; Zare Abbas,M.; Haghnazari,L.. Acute myocardiopathy in alloxan treated experimental dogs and rabbits was induced by subcutaneous (SQ) injection of scorpion venom from Mesobuthus tamulus concanesis, Pocock. Envenoming resulted in an initial transient hypertension (180-320 mm Hg.) followed by hypotension. Simultaneous administration of venom and species-specific scorpion antivenom (SAV) prevented hypertension and hypotension. Hypotension did not occur when SAV was given 60 min after envenoming. Blood glucose, triglycerides, cholesterol, amylase, insulin, glucagon, cortisol, hematocrit, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), platelet count, red blood cell (RBC) count, hemoglobin (Hb), 2,3-diphosphoglycerate... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mesobuthus tamulus concanesis; Pocock; Insulin therapy; Serotherapy; Alloxan; Tissue glycogen; Blood pressure; Hematological changes. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992003000200006 Effect of exercise on cardiovascular parameters in search and rescue-trained dogs Arq. Bras. Med. Vet. Zootec. Santos,P.O.P.R.; Santos,E.A.; Reis,A.C.; Santos,A.M.M.R.; Kuster,M.C.C.; Trivilin,L.O.; Aptekmann,K.P.. ABSTRACT Physical activity alters the cardiovascular system of dogs, depending on the exercise characteristics and the animal’s physical conditioning. Little is known about the cardiovascular changes in rescue-trained dogs. This study evaluated the cardiovascular responses to a search and rescue exercise session to differentiate these alterations from cases of exhaustion or some possible pathology. Nine healthy rescue-trained dogs that trained for at least one year were used. Seven German Shepherds and two Belgian Shepherd Malinois were evaluated twice, immediately before exercise (M0) and immediately after a 20-minute training (M1). Electrocardiographic, echocardiographic, and systemic blood pressure (SBP) measurements were performed at each evaluation.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Working dog; Blood pressure; Echocardiography; Electrocardiography; Exercise physiology. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401036 Effects of timolol maleate, levobunolol and apraclonidine on intraocular pressure, pupil size, blood pressure and heart rate in beagles Arq. Bras. Med. Vet. Zootec. Padua,I.R.M.; Ribeiro,A.P.; Padua,P.P.M.; Guimarães,P.J.; Silva,M.L.; Piso,D.Y.T.; Martins,B.; Aldrovani,M.; Semolin,L.M.S.; Camacho,A.A.; Laus,J.L.. ABSTRACT The aim of this study was to evaluate changes in intraocular pressure (IOP), pupil size (PS), blood pressure (BP), heart rate (HR), and ECG variables (Pms wave PmV, PR interval, QRS complex, RMV wave and QT intervals) over time during the instillation of 0.5% timolol, 0.5% levobunolol and 0.5% apraclonidine in clinically normal dogs. Ten adult beagles were used. Baseline values were measured at 8a.m., 2p.m. and 8p.m., for three consecutive days. A waiting period of 10 days between the administrations of each drug was established. For 15 consecutive days, the drug being tested was instilled in one eye of each dog twice a day (7a.m. and 7p.m.). The parameters were evaluated at the aforementioned times on days 3, 6, 9, 12 and 15. Data were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Timolol maleate; Levobunolol; Apraclonidine; Intraocular pressure; Pupil size; Heart rate; Blood pressure. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000300641 Chronobiologic blood pressure assessment: Maturation of the daily rhythm in newborn foals Biol. Res. PICCIONE,GIUSEPPE; ASSENZA,ANNA; FAZIO,FRANCESCO; GIANNETTO,CLAUDIA; CAOLA,GIOVANNI. Circadian rhythmicity of physiological processes in animals has been described for some variables. In order to investigate the daily rhythmicity of blood pressure, seven foals (Equus caballus) were used for 40 days after birth. Measurements of blood pressure were done by means of an oscillometric apparatus (Argus TM-7, Schiller, Barr Switzerland) with the foals in a standing position and the cuff placed around the tail. Blood pressure was recorded twice a day, 1 hour before dawn and 1 hour before dusk for the first 10 days of life, every 2 days from the 11th to the 32nd day, on the 36th and on the 40th day. Two-way repeated measures analysis of variance (ANOVA) were used to determine statistically significant differences between the mean values recorded at... Tipo: Journal article Palavras-chave: Blood pressure; Circadian rhythm; Chronophisiology; Foals; Equus caballus. Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602008000100007 Malnutrition affects the pressor response to microinjection of L-glutamate into the RVLM of awake rats Biol. Res. Rodrigues,Fabiana Aparecida; Chianca-Jr,Deoclecio Alves; Gonçalves Fernandes,Luciano. Post-weaning protein malnutrition is often related to the development of cardiovascular and metabolic diseases in humans, as well to changed content of neurotransmitters in the central nervous system under experimental conditions. The rostral ventrolateral medulla (RVLM) is a bulbar region that contains sympathetic premotor neurons; the excitatory amino acid L-glutamate seems to be the main neurotransmitter at this level. The aim of the present study was to evaluate the possible change in the L-glutamate sensitivity of the RVLM neurons of malnourished animals. Male Fischer rats were divided into two groups: control (n = 15) and malnourished (n = 19). Four days before the experiments, guide cannulas were implanted bilaterally in direction of the RVLM for... Tipo: Journal article Palavras-chave: Baroreflex; Blood pressure; L-glutamate receptors; Heart rate; Malnutrition; RVLM. Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400002 Effects of Emerita brasiliensis flour supplementation on normotensive (Wistar) and spontaneously hypertensive rats (SHR) BABT Cavargere,Victor Agati; França,Camille Feitoza; Cardoso,Ricardo; Vianna,Lucia Marques. Several studies characterize the connection of overweight and obesity with chronic diseases. Therefore, new alternatives are being studied for controlling hypertension, such as chitin and chitosan fibers, commonly found on crustacean's carapace like Emerita brasiliensis. Rats from two different strains were divided into control and supplemented groups (n=6). The Wistar strain experiment started with a 14-days baseline period, followed by supplementation of E.brasiliensis flour added to the diet in the doses of 5, 10 and 20%, for a 14-days period each. With the optimal dose of 20%, the study was undertaken with SHR rats, starting with a 7-days baseline period, followed by three weeks of supplementation. Data were evaluated using one-way ANOVA and p<0.05... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chitin; Chitosan; Emerita brasiliensis; Blood pressure. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400006 Biological response of spontaneously hypertensive rats to the streptozotocin administration BABT Costa,Virginia Alice Vieira da; Vianna,Lucia Marques. The sensitivity of adult spontaneously hypertensive rats (SHR) to the diabetogenic effect of streptozotocin (STZ) was studied. The animals were subdivided into three groups: control (citrate buffer), streptozotocin 40 mg/kg or 50 mg/kg, and general biologic parameters were analyzed, in addition to systolic blood pressure, blood glucose and insulin levels determinations. Both doses were able to induce hyperglycemia above 300 mg/dl; however, 50 mg/kg provoked a more pronounced physiological alterations in body weight, diuresis, water and food intake. There was no change on systolic blood pressure with either dose. Results suggested that SHRs did not need doses of streptozotocin above 40mg/kg in order to produce diabetes probably because this strain was much... Tipo: Info:eu-repo/semantics/article Palavras-chave: Streptozotocin; SHR; Diabetes; Blood pressure; Insulin. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100006 Daily blood pressure profile in Cushing's syndrome before and after surgery BJMBR Kreze,A.; Mikulecky,M.. No significant difference has been demonstrated in the altered circadian blood pressure pattern between the pituitary-dependent and adrenal forms of Cushing's syndrome before surgery. The effect of therapy, however, proved to be different. The mesor was normalized in the pituitary-dependent Cushing's syndrome more conspicuously for systolic than for diastolic blood pressure. In Cushing's syndrome due to adrenal adenoma, systolic and diastolic blood pressure mesors have been even significantly "overnormalized" after treatment, being 11 to 27 and 2 to 13 mmHg (95% confidence) lower than corresponding mesors in controls. There was no difference between forms in the effect of treatment on blood pressure amplitudes, which remained significantly lower than in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cushing's syndrome; Pituitary-dependent Cushing's syndrome; Cushing's syndrome due to adrenal adenoma; Blood pressure; Circadian rhythm; Surgery. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001000004 Angiotensin and baroreflex control of the circulation BJMBR Head,G.A.; Saigusa,T.; Mayorov,D.N.. There is a close association between the location of angiotensin (Ang) receptors and many important brain nuclei involved in the regulation of the cardiovascular system. The present review encompasses the physiological role of Ang II in the brainstem, particularly in relation to its influence on baroreflex control of the heart and kidney. Activation of AT1 receptors in the brainstem by fourth ventricle (4V) administration to conscious rabbits or local administration of Ang II into the rostral ventrolateral medulla (RVLM) of anesthetized rabbits acutely increases renal sympathetic nerve activity (RSNA) and RSNA baroreflex responses. Administration of the Ang antagonist Sarile into the RVLM of anesthetized rabbits blocked the effects of Ang II on the RSNA... Tipo: Info:eu-repo/semantics/article Palavras-chave: Angiotensin II; AT1 receptors; Losartan; Renal sympathetic activity; Baroreflex; Rostral ventrolateral medulla; Blood pressure; Rabbit. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000900005 Endogenous vasopressin and the central control of heart rate during dynamic exercise BJMBR Michelini,L.C.. The present article contains a brief review on the role of vasopressinergic projections to the nucleus tractus solitarii in the genesis of reflex bradycardia and in the modulation of heart rate control during exercise. The effects of vasopressin on exercise tachycardia are discussed on the basis of both the endogenous peptide content changes and the heart rate response changes observed during running in sedentary and trained rats. Dynamic exercise caused a specific vasopressin content increase in dorsal and ventral brainstem areas. In accordance, rats pretreated with the peptide or the V1 blocker into the nucleus tractus solitarii showed a significant potentiation or a marked blunting of the exercise tachycardia, respectively, without any change in the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Exercise tachycardia; V1 receptors; Brainstem areas; Peptides; Blood pressure; Training; Rats. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000900012 Autonomic abnormalities demonstrable in young normotensive subjects who are children of hypertensive parents BJMBR Lopes,H.F.; Silva,H.B.; Consolim-Colombo,F.M.; Barreto Filho,J.A.S.; Riccio,G.M.G.; Giorgi,D.M.A.; Krieger,E.M.. Although a slightly elevated office blood pressure (BP) has been reported in several studies, little is known about the prolonged resting blood pressure, heart rate (HR) and baroreflex sensitivity (BRS) of prehypertensive subjects with a family history of hypertension. Office blood pressure, prolonged resting (1 h) BP and HR were measured in 25 young normotensives with a positive family history of hypertension (FH+) and 25 young normotensives with a negative family history of hypertension (FH-), matched for age, sex, and body mass index. After BP and HR measurements, blood samples were collected for the determination of norepinephrine, plasma renin activity and aldosterone levels, and baroreflex sensitivity was then tested. Casual BP, prolonged resting BP... Tipo: Info:eu-repo/semantics/article Palavras-chave: Heart rate; Blood pressure; Baroreflex sensitivity; Family history of hypertension. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000100007 Oral administration of L-arginine decreases blood pressure and increases renal excretion of sodium and water in renovascular hypertensive rats BJMBR Gouvêa,S.A.; Moysés,M.R.; Bissoli,N.S.; Pires,J.G.P.; Cabral,A.M.; Abreu,G.R.. The two-kidney, one-clip renovascular (2K1C) hypertension model is characterized by a reduction in renal flow on the clipped artery that activates the renin-angiotensin system. Endothelium dysfunction, including diminished nitric oxide production, is also believed to play a role in the pathophysiology of this model. Some studies have shown an effect of L-arginine (L-Arg, a nitric oxide precursor) on hypertension. In the present study we determined the ability of L-Arg (7 days of treatment) to reduce blood pressure and alter renal excretions of water, Na+ and K+ in a model of 2K1C-induced hypertension. Under ether anesthesia, male Wistar rats (150-170 g) had a silver clip (0.20 mm) placed around the left renal artery to produce the 2K1C renovascular... Tipo: Info:eu-repo/semantics/article Palavras-chave: L-arginine; Nitric oxide; Renovascular hypertension; Sodium excretion; Renal physiology; Blood pressure. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000700017 Cardiovascular responses to locomotor activity and feeding in unrestrained three-toed sloths, Bradypus variegatus BJMBR Duarte,D.P.F.; Jaguaribe,A.M.; Pedrosa,M.A.C.; Clementino,A.C.C.R.; Barbosa,A.A.; Silva,A.F.V.; Gilmore,D.P.; Da Costa,C.P.. Heart rate (HR) and systolic (SBP), diastolic (DBP) and mean (MBP) blood pressure were recorded by biotelemetry in nine conscious unrestrained sloths for 1 min every 15 min over a 24-h period. The animals were allowed to freely move in an acoustically isolated and temperature-controlled (24 ± 1ºC) experimental room with light-dark cycle (12/12 h). Behavior was closely monitored through a unidirectional visor and classified as resting (sitting or suspended), feeding (chewing and swallowing embauba leaves, Cecropia adenops), or locomotor activity around the tree trunk or on the room floor. Locomotor activity caused statistically significant increases in SBP (+8%, from 121 ± 22 to 131 ± 18 mmHg), DBP (+7%, from 86 ± 17 to 92 ± 10 mmHg), MBP (+8%, from 97 ± 19... Tipo: Info:eu-repo/semantics/other Palavras-chave: Tree-toed sloth; Heart rate; Blood pressure; Locomotor activity; Feeding behavior. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004001000016 Arterial blood pressure of term newborns during the first week of life BJMBR Nascimento,M.C.V.A.; Xavier,C.C.; Goulart,E.M.A.. The progressive behavior of the blood pressure of term newborns during the first week of life was assessed by the simultaneous use of oscillometric and Doppler methods. A total of 174 term neonates born at the Municipal Hospital Odilon Behrens in Belo Horizonte, from March 1996 to February 1997, were prospectively assessed. The oscillometric and Doppler ultrasonic methods were simultaneously used for four consecutive recordings obtained at 12 ± 6, 24 ± 6 and 72 ± 24 h and on the 7th ± 1 day of life. The combined use of the two methods simplified the procedure, with automatic cuff inflation and deflation, and speed was properly controlled with an automatic pressure monitor. The procedure was performed using a Y-connection to the mercury sphygmomanometer,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Blood pressure; Doppler method; Oscillometric method; Term newborn. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000800007 Cardiovascular effects of the intracerebroventricular injection of adrenomedullin: roles of the peripheral vasopressin and central cholinergic systems BJMBR Cam-Etoz,B.; Isbil-Buyukcoskun,N.; Ozluk,K.. Our objective was to investigate in conscious Sprague-Dawley (6-8 weeks, 250-300 g) female rats (N = 7 in each group) the effects of intracerebroventricularly (icv) injected adrenomedullin (ADM) on blood pressure and heart rate (HR), and to determine if ADM and calcitonin gene-related peptide (CGRP) receptors, peripheral V1 receptors or the central cholinergic system play roles in these cardiovascular effects. Blood pressure and HR were observed before and for 30 min following drug injections. The following results were obtained: 1) icv ADM (750 ng/10 µL) caused an increase in both blood pressure and HR (DMAP = 11.8 ± 2.3 mmHg and ΔHR = 39.7 ± 4.8 bpm). 2) Pretreatment with a CGRP receptor antagonist (CGRP8-37) and ADM receptor antagonist (ADM22-52)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Adrenomedullin; Blood pressure; Vasopressin; Atropine; Mecamylamine. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000300011 Central injection of captopril inhibits the blood pressure response to intracerebroventricular choline BJMBR Isbil-Buyukcoskun,N.; Gulec,G.; Ozluk,K.; Ulus,I.H.. In the present study, we investigated the involvement of the brain renin-angiotensin system in the effects of central cholinergic stimulation on blood pressure in conscious, freely moving normotensive rats. In the first step, we determined the effects of intracerebroventricular (icv) choline (50, 100 and 150 µg) on blood pressure. Choline increased blood pressure in a dose-dependent manner. In order to investigate the effects of brain renin-angiotensin system blockade on blood pressure increase induced by choline (150 µg, icv), an angiotensin-converting enzyme inhibitor, captopril (25 and 50 µg, icv), was administered 3 min before choline. Twenty-five µg captopril did not block the pressor effect of choline, while 50 µg captopril blocked it significantly.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Choline; Captopril; Intracerebroventricular choline; Blood pressure. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600018 Relationship between salt consumption measured by 24-h urine collection and blood pressure in the adult population of Vitória (Brazil) BJMBR Rodrigues,S.L.; Souza Júnior,P.R.; Pimentel,E.B.; Baldo,M.P.; Malta,D.C.; Mill,J.G.; Szwarcwald,C.L.. High salt intake is related to an increase in blood pressure and development of hypertension. However, currently, there are no national representative data in Brazil using the gold standard method of 24-h urine collection to measure sodium consumption. This study aimed to determine salt intake based on 24-h urine collection in a sample of 272 adults of both genders and to correlate it with blood pressure levels. We used a rigorous protocol to assure an empty bladder prior to initiating urine collection. We excluded subjects with a urine volume <500 mL, collection period outside of an interval of 23-25 h, and subjects with creatinine excretion that was not within the range of 14.4-33.6 mg/kg (men) and 10.8-25.2 mg/kg (women). The mean salt intake was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sodium; Salt intake; Blood pressure; Hypertension; 24-h urine collection; Population-based study. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000800728 The physiological role of AT1 receptors in the ventrolateral medulla BJMBR Tagawa,T.; Fontes,M.A.P.; Potts,P.D.; Allen,A.M.; Dampney,R.A.L.. Neurons in the rostral and caudal parts of the ventrolateral medulla (VLM) play a pivotal role in the regulation of sympathetic vasomotor activity and blood pressure. Studies in several species, including humans, have shown that these regions contain a high density of AT1 receptors specifically associated with neurons that regulate the sympathetic vasomotor outflow, or the secretion of vasopressin from the hypothalamus. It is well established that specific activation of AT1 receptors by application of exogenous angiotensin II in the rostral and caudal VLM excites sympathoexcitatory and sympathoinhibitory neurons, respectively, but the physiological role of these receptors in the normal synaptic regulation of VLM neurons is not known. In this paper we... Tipo: Info:eu-repo/semantics/article Palavras-chave: Angiotensin receptors; Central cardiovascular pathways; Blood pressure; Hypothalamus; Neurotransmitters. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000600005 Hemodynamic mechanisms of the attenuated blood pressure response to mental stress after a single bout of maximal dynamic exercise in healthy subjects BJMBR Neves,F.J.; Carvalho,A.C.G.; Rocha,N.G.; Silva,B.M.; Sales,A.R.K.; Castro,R.R.T. de; Rocha,J.D.; Thomaz,T.G.; Nóbrega,A.C.L.. To determine the hemodynamic mechanisms responsible for the attenuated blood pressure response to mental stress after exercise, 26 healthy sedentary individuals (age 29 ± 8 years) underwent the Stroop color-word test before and 60 min after a bout of maximal dynamic exercise on a treadmill. A subgroup (N = 11) underwent a time-control experiment without exercise. Blood pressure was continuously and noninvasively recorded by infrared finger photoplethysmography. Stroke volume was derived from pressure signals, and cardiac output and peripheral vascular resistance were calculated. Perceived mental stress scores were comparable between mental stress tests both in the exercise (P = 0.96) and control (P = 0.24) experiments. After exercise, the blood pressure... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cardiovascular system; Blood pressure; Exercise test; Stroop test. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000700007 Registros recuperados: 52 Primeira ... 1 2 3 ... Última

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