Key result
Water-based resistance training resulted in lower systolic blood pressure from 10 to 25 minutes post-exercise compared to land-based training (p < 0.05).
Why the study?
Water immersion may acutely reduce blood pressure and exercise may elicit positive post-exercise hypotension, but whether the magnitude of this effect differs between aquatic and land resistance training sessions was unverified.
Does water-based resistance training improve post-exercise hypotension compared to land-based resistance training in physically active normotensive men?
RCT (n=10)
Randomized, counterbalanced
Does water-based resistance training improve post-exercise hypotension compared to land-based resistance training in physically active normotensive men?
p-value: p=<0.05
Water-based resistance training may be an effective nonpharmacological strategy to acutely lower systolic blood pressure post-exercise compared to land-based training.
Water-based resistance training yields greater post-exercise hypotension than land-based; extends nonpharmacological BP options for active adults.
Considering that water immersion may acutely reduce blood pressure (BP) and that exercise may elicit positive post-exercise hypotension (PEH) responses, we aimed to analyze the presence of PEH in normotensive individuals and compare its magnitude between two resistance training sessions performed in aquatic or land environments. Ten physically active men (23.2 ± 3.1 years) performed the two training protocols in a randomized, counterbalanced fashion. BP measurements were performed for 30 min (at 5 min intervals) both prior to (resting) and after each of the protocols. No differences were observed between protocols at baseline (p > 0.05). Only the water-based resistance training protocol resulted in a systolic BP reduction from 10 to 20 min post-exercise (all p < 0.05) compared to baseline. Compared to the land-based session, systolic BP was lower in the water-based protocol from 10 to 25 min post-exercise (all p < 0.05). On the other hand, diastolic BP showed a similar PEH effect between water and land-based protocols for the entire 30 min post-session period (all p < 0.001). Our results suggest that water-based resistance training holds the potential as a nonpharmacological strategy to lower BP levels following exercise.
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David et al. (2022) conducted an RCT in Normotension (n=10). Water-based resistance training vs. Land-based resistance training was evaluated on Post-exercise hypotension (blood pressure reduction) (p=<0.05). Water-based resistance training resulted in lower systolic blood pressure from 10 to 25 minutes post-exercise compared to land-based training (p < 0.05).
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