摘要：Oliveira TP, Ferreira RB, Mattos RA, Silva JP, Lima JRP. Influence of Water Intake on Post-Exercise Heart Rate Variability Recovery. JEPonline 2011;14(4):97-105. The risk of severe cardiovascular events is increased soon after physical exertion. Interventions that could potentially improve post-exercise autonomic recovery could prevent cardiovascular events during this vulnerable period. Water intake during or after physical exertion is a widespread practice because it produces important hemodynamic and autonomic changes. The purpose of this study was to assess the influence of water intake on post-exercise autonomic recovery through the analysis of postexercise heart rate variability (HRV) recovery. Ten healthy subjects, with a moderate level of physical activity were enrolled in this study. Following the recording of RR intervals at rest, the subjects exercised on cycle ergometer with water intake at the end of exercise during which the recording of recovery RR intervals was carried out. Heart rate variability was analyzed in time and frequency domains. The water intake led to higher HRV values throughout the recovery period measured (P=0.05). The findings suggest that post-exercise water intake enhances post-exercise autonomic recovery.
