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Aerobic exercise intensity influences hypotension following concurrent exercise sessions
F Keese1, P Farinatti, L Pescatello
1Salgado de Oliveira University, Physical Activity Sciences Graduate Program, Rio de Janeiro, Brazil.
International Journal of Sports Medicine
|December 2, 2011
Summary
Concurrent exercise elicits postexercise hypotension (PEH) in healthy men. Higher aerobic exercise intensity (over 65% VO2peak) prolonged the duration of PEH compared to lower intensities.
Area of Science:
- Exercise Physiology
- Cardiovascular Health
- Sports Science
Background:
- Postexercise hypotension (PEH) is a temporary reduction in blood pressure following exercise.
- Concurrent exercise (CE), combining resistance and aerobic training, is increasingly studied for its health benefits.
- Understanding the influence of exercise intensity on PEH is crucial for optimizing exercise prescriptions.
Purpose of the Study:
- To investigate the impact of different exercise intensities during concurrent exercise (CE) on postexercise hypotension (PEH).
- To compare the magnitude and duration of systolic and diastolic blood pressure reduction after varying CE protocols.
Main Methods:
- 21 healthy men participated in four sessions: control (rest) and three CE protocols with varying aerobic intensities (50%, 65%, 80% VO2peak) after resistance exercise.
- Blood pressure (systolic and diastolic) was measured at baseline and every 10 minutes during a 120-minute recovery period.
- Data analysis compared the changes in blood pressure between the control and CE sessions.
Main Results:
- All CE sessions induced PEH, with no significant difference in the magnitude of systolic blood pressure decrease.
- The duration of PEH was significantly longer (120 minutes) following higher aerobic intensities (65% and 80% VO2peak) compared to the lower intensity (60-70 minutes).
- Diastolic blood pressure reduction was greater and lasted longer with higher aerobic intensities (CE3: 60 minutes) than with lower intensities (CE1: 40 minutes).
Conclusions:
- Concurrent exercise effectively elicits postexercise hypotension.
- Higher aerobic exercise intensity (above 65% VO2peak) within a concurrent exercise session enhances the duration of PEH.
- These findings suggest that manipulating aerobic intensity during CE can modulate the hypotensive response.
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