Key result
High-intensity and moderate-intensity isoenergetic endurance exercise equally reduced systolic BP at 30 minutes post-exercise, with greater reductions in those with higher resting BP (r2=0.33, p<0.003).
Why the study?
The study investigated the acute post-exercise hypotension response in persons with elevated blood pressure or stage 1 hypertension following moderate- versus high-intensity isoenergetic endurance exercise.
Does high-intensity endurance exercise compared to moderate-intensity exercise improve acute post-exercise blood pressure reduction in middle-aged persons with elevated blood pressure or stage 1 hypertension?
Does high-intensity endurance exercise compared to moderate-intensity exercise improve acute post-exercise blood pressure reduction in middle-aged persons with elevated blood pressure or stage 1 hypertension?
Moderate and high-intensity isoenergetic endurance exercise are equally effective in eliciting acute post-exercise reductions in systolic blood pressure in middle-aged individuals with elevated BP or stage 1 hypertension.
Isoenergetic moderate- and high-intensity exercise may elicit comparable acute systolic BP reductions; leaves open optimal protocols for sustained hypertension control.
International Journal of Exercise Science 13(3): 1532-1548, 2020. This study investigated the acute post-exercise hypotension (PEH) response in persons with elevated blood pressure or stage 1 hypertension following moderate and high-intensity isoenergetic endurance exercise. Twelve middle-aged persons (six females), with resting systolic and diastolic BP of 130±6 and 84±7 mmHg, participated in three bicycle ergometer bouts: 1) Testing of peak aerobic capacity (VO2peak), 2) Moderate intensity exercise (MOD) at 66% of VO2peak, 3) High-intensity exercise (INT) at 80% of VO2peak. All variables were recorded pre-exercise, during exercise and 0, 5, 10, and 30 minutes post-exercise. The total duration of exercise was 26% longer during MOD than INT (p <0.001), while total energy expenditure (TEE) was similar between exercise conditions (359 ± 69 kcal). Oxygen consumption, heart rate, power output and ratings of perceived exertion was 21, 13, 21 and 26% higher during INT than MOD exercise, respectively (0.05 ≤ p ≤ 0.001). Compared to pre-exercise, systolic BP was significantly lower at 30 min post-exercise following both INT (p < 0.05) and MOD (p < 0.01) exercise, and there was no difference between INT and MOD conditions. Other variables were similar to pre-exercise values at 30 min post-exercise. Linear regression shows that the largest post-exercise reductions in systolic BP was found for the persons with the highest pre-exercise systolic BP (r = 0.58 r2 = 0.33, p < 0.003). In conclusion, this study shows that endurance exercise with different intensities and durations, but similar TEE is equally effective in eliciting reductions in the post-exercise systolic BP. Furthermore, the magnitude of PEH response is partly dependent on the individuals’ resting blood pressure.
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Terje Gjøvaag (2020) studied Elevated blood pressure or stage 1 hypertension (n=12). High-intensity endurance exercise vs. Moderate intensity endurance exercise (66% of VO2peak) was evaluated on Systolic blood pressure at 30 minutes post-exercise. High-intensity and moderate-intensity isoenergetic endurance exercise equally reduced systolic BP at 30 minutes post-exercise, with greater reductions in those with higher resting BP (r2=0.33, p<0.003).
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