Key result
Compared to a 20% load, supine dynamic exercise at 40% of maximum load significantly decreased stroke volume and increased total peripheral resistance during the later stages of a 20-minute session.
Why the study?
Does dynamic exercise at 40% versus 20% maximum load in the supine position alter hemodynamics and baroreflex sensitivity in healthy sedentary men?
RCT (n=11)
Randomized crossover
No
Does dynamic exercise at 40% versus 20% maximum load in the supine position alter hemodynamics and baroreflex sensitivity in healthy sedentary men?
p-value: p=<0.05
During dynamic exercise in the supine position at 40% maximum load, stroke volume decreases and total peripheral resistance increases compared to a 20% load, suggesting a compensatory mechanism to maintain blood pressure.
May warrant caution in supine exercise protocols; leaves open validation in cardiovascular patients.
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Shōbo et al. (2015) conducted an RCT in Healthy sedentary men (n=11). Supine dynamic exercise at 40% maximum load vs. Supine dynamic exercise at 20% maximum load was evaluated on Changes in stroke volume and total peripheral resistance (p=<0.05). Compared to a 20% load, supine dynamic exercise at 40% of maximum load significantly decreased stroke volume and increased total peripheral resistance during the later stages of a 20-minute session.
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