Why the study?
Does increased physical activity improve cardiovascular risk factors, hemodynamics, and sympathetic function in normal subjects?
Population
12 normal subjects
Comparison
Four randomized 4-week periods of activity… vs 4-week periods of below-sedentary activity and…
Design
RCT, randomized periods
Follow-up
4 weeks per period
Authors
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Supports thrice-weekly exercise for BP reduction in normotensives; confirms minimal added benefit from daily sessions.
Does increased physical activity improve cardiovascular risk factors, hemodynamics, and sympathetic function in normal subjects?
Exercise performed three times per week significantly lowers blood pressure and improves cardiovascular risk factors, with little further reduction in risk factors seen with seven times per week exercise.
Jennings et al. (1986) studied this question.
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