期刊
APPLIED PHYSIOLOGY NUTRITION AND METABOLISM
卷 -, 期 -, 页码 -出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/apnm-2023-0173
关键词
hypertension; heat stress; heart rate variability; HRV; cardiac; exercise
In this study, the effects of different intensity exercise in a hot environment on cardiac autonomic modulation in individuals with controlled hypertension were investigated. The results showed that short bouts of exercise-heat stress did not significantly disrupt heart rate variability in physically active individuals with hypertension.
Impaired cardiac autonomic modulation is implicated in the development of hypertension. Exercise improves sympathovagal balance and is often prescribed for hypertension management. Environmental conditions, however, are not considered during the development of these exercise recommendations. We examined cardiac autonomic modulation, assessed using heart rate variability (HRV), in individuals (49-77 years) with (n = 20) and without (n = 28) controlled, uncomplicated hypertension performing three 30 min bouts of exercise (light, moderate, and vigorous) in dry heat (40.2 +/- 0.3 degrees C, 17% +/- 7% relative humidity), each separated by 15 min breaks. Regardless of intensity, short bouts of exercise-heat stress did not significantly disrupt HRV in physically active individuals with hypertension relative to normotensives.
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