Postexercise hypotension at 1 hour correlated significantly with chronic blood pressure reductions after 4 weeks of endurance training (r = 0.77; P = 0.003).
Observational (n=12)
No
Is acute postexercise hypotension associated with chronic blood pressure reductions in response to a 4-week endurance training program in healthy untrained adults?
The magnitude of acute postexercise hypotension correlates with chronic blood pressure reduction after 4 weeks of endurance training, suggesting it could serve as a predictor for individual training efficacy.
Estimación del efecto: r = 0.77
valor p: p=0.003
OBJECTIVE: The interindividual variability in the efficacy of regular endurance exercise to lower blood pressure is high. Therefore, to optimize training prescriptions, predictors would be desirable. The main hypothesis of the present study was an association between postexercise hypotension after an exhaustive exercise test and chronic blood pressure reductions in response to an endurance training program. DESIGN: Uncontrolled prospective training study. SETTING: University department. PARTICIPANTS: Healthy untrained subjects were recruited by flyers. Inclusion criteria were age 30 to 60 years, body mass index 25 to 35 kg/m(2), untrained status (<1 hour/week regular activity; VCombining Dot AboveO(2max) < 45 mL·min(-1)·kg(-1)), blood pressure 150/95 mm Hg, nonsmoker; 14 subjects were included, 12 could be analyzed. INTERVENTION: Walking/running 4 times per week at 60% heart rate reserve for 4 weeks. MAIN OUTCOME MEASURES: Difference in blood pressure from the initial resting value to 1 and 24 hours after the initial test (acute) and the resting value before the final test (chronic), respectively. RESULTS: Initial resting systolic blood pressure was 134 ± 18 mm Hg. Values were significantly reduced at all time points thereafter (1 hour: 125 ± 13 mm Hg; 24 hours: 128 ± 12 mm Hg; final: 125 ± 18 mm Hg). Acute and chronic changes correlated significantly (1 hour: P = 0.003; r = 0.77; 24 hours: P = 0.017; r = 0.67). Results for diastolic blood pressure were comparable yet less pronounced. CONCLUSIONS: The magnitude of postexercise hypotension is a promising candidate for the prediction of individual blood pressure-related training efficacy. Easily determined, it might be used to improve training prescriptions. However, further studies are needed to assess predictive accuracy.
Hecksteden et al. (Wed,) conducted a observational in Healthy untrained subjects (n=12). Endurance training (walking/running) was evaluated on Difference in blood pressure from initial resting value to 1 and 24 hours after initial test (acute) and resting value before final test (chronic) (r = 0.77, p=0.003). Postexercise hypotension at 1 hour correlated significantly with chronic blood pressure reductions after 4 weeks of endurance training (r = 0.77; P = 0.003).