Key result
Single-session HIIT generates a hypotensive effect without posing cardiovascular risk in hypertensive women.
Why the study?
The study evaluated whether a single session of HIIT promotes a hypotensive effect and cardiovascular risk in hypertensive women, and increases nitric oxide bioavailability.
Does a single session of high-intensity interval training (HIIT) promote a hypotensive effect and increase nitric oxide bioavailability without cardiovascular risk in hypertensive women?
RCT (n=10)
randomized
Does a single session of high-intensity interval training (HIIT) promote a hypotensive effect and increase nitric oxide bioavailability without cardiovascular risk in hypertensive women?
Effect estimate: η2P = 0.569
p-value: p=<0.001
A single session of high-intensity interval training (HIIT) promotes a hypotensive effect without increasing cardiovascular risk in hypertensive women.
Acute HIIT safely lowers BP in hypertensive women; supports its inclusion in exercise prescriptions and extends RCT evidence on post-exercise hypotension.
Introduction: The aim of this study was to evaluate whether a single session of high-intensity interval training (HIIT) would promote a hypotensive effect and cardiovascular risk in hypertensive women, in addition to increasing the bioavailability of nitric oxide. Methods: The sample consisted of 10 hypertensive women (63.7 ± 10.34 years; 66 ± 7.67 kg and 153.7 ± 9.08 cm) and the training load was established at 60% of the maximum aerobic speed. Results: We observed a very high hypotensive effect between the interaction moments during the intervention (Int. Pre: 122.40 ± 18.58; Int. Post: 143.00 ± 24.90; Int. Post 60min: 121.40 ± 13.87; p<0.001, η2P = 0.569). No cardiovascular risk was observed during the intervention (DP = Int. Pre: 9138.20 ± 1805.34; Int. Post: 14849.70 ± 3387.94; Int. Post 60min: 9615.90 ± 1124.41, p< 0.001, η2P = 0.739) and there was no increase in the bioavailability of nitric oxide. Conclusion: In conclusion, this work reveals that an HIIT session is capable of generating a hypotensive effect while not posing cardiovascular risk in hypertensive women. Level of evidence I; High-quality randomized clinical trial with or without statistically significant difference, but with narrow confidence intervals .
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Souza et al. (2022) conducted an RCT in Hypertension (n=10). High-intensity interval training (HIIT) vs. Pre-intervention baseline was evaluated on Hypotensive effect (η2P = 0.569, p=<0.001). A single session of high-intensity interval training generated a significant hypotensive effect (P<0.001) without posing cardiovascular risk in hypertensive women.
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