Background: The magnitude and duration of the hypotensive effect of exercise may be influence by the type of exercise performed. The aim of the present study was to compare systolic (SBP) and diastolic (DBP) blood pressure for 24 hours after a single session of continuous aerobic (CA), interval aerobic (IA), resistance (RE) exercise and control (C), among hypertensive older women under treatment.
Methods: The study was conducted on 30 women aged 67.5±5.2 years participating in all sessions applied in random order. After each session, blood pressure was obtained by an oscillometric device and they were submitted to 24-hour ambulatory blood pressure monitoring.
Results: Immediately after the sessions, a lower SBP value was observed in groups CA and IA compared to groups C and RE. During the 24 hours after sessions, there was a greater reduction of SBP after IA than after other types of exercise, with the reduction after RE being greater than after CA and C (P<0.01). In wakefulness period, the reduction of SBP after IA was more intensive, and, during sleep, IA and RE promoted greater reductions of SBP, with reduction of DBP only after RE (P<0.01).
Conclusions: Immediately after the exercise sessions there was a fall in SBP only after aerobic exercises. However, aerobic exercise in the interval mode and RE were more effective in reducing BP over a period of 24 hours.
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