Consulta: creatorFacets:"Araújo,C.G.S."
Registros recuperados: 3
Data/hora: 09/06/2024 13:51:31

Training-related changes in the R-R interval at the onset of passive movements in humans
Provedor de dados: 56
Autores: Vianna,L.C.; Ricardo,D.R.; Araújo,C.G.S.
The aim of the present study was to determine whether training-related alterations in muscle mechanoreflex activation affect cardiac vagal withdrawal at the onset of exercise. Eighteen male volunteers divided into 9 controls (26 ± 1.9 years) and 9 racket players (25 ± 1.9 years) performed 10 s of voluntary and passive movement characterized by the wrist flexion of their dominant and non-dominant limbs. The respiratory cycle was divided into four phases and the phase 4 R-R interval was measured before and immediately following the initiation of either voluntary or passive movement. At the onset of voluntary exercise, the decrease in R-R interval was similar between dominant and non-dominant forearms in both controls (166 ± 20 vs 180 ± 34 ms, respectively; P...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanoreceptors; Vagus nerve; Muscle stretching exercises; R-R interval.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000900014

Psychiatric disorders and cardiac anxiety in exercising and sedentary coronary artery disease patients: a case-control study
Provedor de dados: 56
Autores: Sardinha,A.; Araújo,C.G.S.; Nardi,A.E.
Regular physical exercise has been shown to favorably influence mood and anxiety; however, there are few studies regarding psychiatric aspects of physically active patients with coronary artery disease (CAD). The objective of the present study was to compare the prevalence of psychiatric disorders and cardiac anxiety in sedentary and exercising CAD patients. A total sample of 119 CAD patients (74 men) were enrolled in a case-control study. The subjects were interviewed to identify psychiatric disorders and responded to the Cardiac Anxiety Questionnaire. In the exercise group (N = 60), there was a lower prevalence (45 vs 81%; P &lt; 0.001) of at least one psychiatric diagnosis, as well as multiple comorbidities, when compared to the sedentary group (N =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise training; Mental health; Depression; Cardiovascular disease; Cardiac rehabilitation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001200031

Stability of relative oxygen pulse curve during repeated maximal cardiopulmonary testing in professional soccer players
Provedor de dados: 56
Autores: Perim,R.R.; Signorelli,G.R.; Araújo,C.G.S.
During cardiopulmonary exercise testing (CPET), stroke volume can be indirectly assessed by O2 pulse profile. However, for a valid interpretation, the stability of this variable over time should be known. The objective was to analyze the stability of the O2 pulse curve relative to body mass in elite athletes. VO2, heart rate (HR), and relative O2 pulse were compared at every 10% of the running time in two maximal CPETs, from 2005 to 2010, of 49 soccer players. Maximal values of VO2 (63.4 ± 0.9 vs 63.5 ± 0.9 mL O2•kg-1•min-1), HR (190 ± 1 vs188 ± 1 bpm) and relative O2 pulse (32.9 ± 0.6 vs 32.6 ± 0.6 mL O2•beat-1•kg-1) were similar for the two CPETs (P &amp;gt; 0.05), while the final treadmill velocity increased from 18.5 ± 0.9 to 18.9 ± 1.0 km/h (P &lt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise testing; Sport cardiology; Maximal oxygen uptake; Stroke volume; Ramp protocol; Heart rate.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000700014