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Exercise duration determines the magnitude and duration of post-exercise hypotension

Cláudia Lúcia de Moraes Forjaz et al. Danilo Forghieri Santaella Liliane Onda Rezende Antonio Carlos Pereira Barretto Carlos Eduardo Negrão

PURPOSE: Considering that exercise duration may play a role in post-exercise hypotension, we tested the hypothesis that a prolonged submaximal exercise would lead to a greater and longer blood pressure fall after exercise than a shorter exercise bout. METHODS: Experimental protocol – 10 subjects were submitted to two cycle ergometer exercise trials (25 and 45min) at 50% of VO2 peak. Control protocol – 12 subjects rested in the sitting position for 45min. Blood pressure (BP) was measured before (20min) and after (90min) rest or exercise bouts. RESULTS: Systolic BP decreased significantly after exercise and this reduction was greater and lasted longer after 45min of exercise. Mean and diastolic BP decreased after exercise and they were significantly lower during the 45min session. Control protocol – no change in BP was observed after resting condition. CONCLUSION: A longer exercise bout leads to a greater and longer post-exercise hypotension.

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Exercise duration determines the magnitude and duration of post-exercise hypotension

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