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Acute effects of moderate-intensity cycling exercise on endothelial function in young healthy men: An investigation using the reactive hyperemia index

H. Koshiba,E. Maeshima

Published 2020 in Technology and Health Care

ABSTRACT

BACKGROUND: Endothelial cells play an important role in the prevention of cardiovascular disease. OBJECTIVE: In this study, we examined the effects of transient aerobic exercise on peripheral endothelial function. METHODS: Twenty-seven healthy male college students were selected as subjects and randomly divided into two groups: 13 in the control group and 14 in the exercise group. The subjects in the exercise group had a 15-minute supine rest, followed by 30 minutes of cycling exercise at moderate intensity, while measuring the reactive hyperemia index (RHI), an indicator of endothelial function, before and after exercise. The subjects in the control group had a 40-minute rest, during which RHI was measured with the same timing as in the exercise group. RESULTS: Two-factor analysis of variance revealed a statistically significant interaction effect. In the exercise group, RHI increased significantly after exercise. However, no significant change was observed in the control group. When RHI before exercise was compared between the two groups, no significant difference was found. However, RHI after exercise was significantly higher in the exercise group. CONCLUSIONS: The results of this study suggest that 30 minutes of moderate-intensity exercise may have a favorable impact on peripheral endothelial function.

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