O treino aeróbico contínuo é mais eficiente que o treino aeróbico intervalado na resposta hipotensora pós-esforço em hipertensos controlados

Introduction: It has been postulated that physical exercise acts as a hypotensive agent, mainly related to immediate post-exercise effects, called post-exercise hypotension (PEH). Objective: to analyze PEH in two different aerobic exercise methods in hypertensive subjects. Methods: The sample consisted of 16 hypertensive and properly controlled volunteers. They performed two separate physical exercise sessions and separated by a minimum interval of 48 hours and the order of execution of the exercises was done by lot. The protocols used in the present study were continuous aerobic training, in which 40 minutes of continuous aerobic exercise were performed at 60% of the reserve heart rate (HRR) while the aerobic interval exercise was performed in 20 minutes, volunteers performed one minute at 85% of the RRF and three minutes at 50% recovery from the RRF. Measurements of mean arterial pressure (MAP) and heart rate (HR) were performed in five minutes cycles for 30 minutes. Data analysis was performed using the ANOVA test with significance level when p <0.05. Results: The two training methods caused HPE during the 30 minutes of recovery, compared to the 0 moment (p <0.001). In addition, the continuous method showed a significant difference compared to the interval at moments 20, 25 and 30 (p <0.05). Regarding post-exertion HR, a significant difference was observed between time 0 and the other moments (p <0.05). Conclusion: Both protocols caused HPE, but the continuous method showed higher HPE than the interval method.