Estudo do controle autonomico da frequencia cardiaca em ciclistas e sedentarios

AUTOR(ES)
DATA DE PUBLICAÇÃO

2001

RESUMO

The main purpose of this work was to study the heart rate (HR) control in subjects with different aerobic capacities, during the following situations: resting, Valsalva Maneuver (VM), Respiratory 8inus Arrhythmia (R8A) and Head-up Tilt (HUT). Participated of this cross-sectional study a group of sedentary subjects (8 group), that didn t practice any regular physical activity for at least 1 year, and a group of cyclist athletes (C group), engaged in this modality for at least 1 year. The following tests were realized to evaluate the aerobic capacity and the HR autonomic control of the groups: dynamic exerci se test, Valsalva Maneuver (VM), Respiratory 8inus Arrhythmia (R8A) and Head-up Tilt (HUT). During rest and HUT the heart rate variability (HRV) was analyzed in the time (TD) and frequency (FD) domains. The C group presented higher aerobic capacity compared with 8 group, expressed by higher values of oxygen uptake and work load, at anaerobic threshold and exercise peak conditions (p

ASSUNTO(S)

educação fisica sistema nervoso autonomo batimento cardiaco

Documentos Relacionados