Abstract
Summary Introduction Recent studies reported improvements in aerobic performance after ischemic preconditioning (IPC) compared to a control or placebo condition. However, the effects of IPC on both skeletal maximal muscle strength and power have not been investigated. Summary of facts and results Considering the importance of muscle strength/power production and the potential benefits of IPC, the purpose of this study was to investigate the effects of IPC on peak isometric torque and rate of force development (RFD). Ten participants performed on separated days 4 sets of either ischemic preconditioning (5 min of ischemia [250 mmHg] and 5 min of reperfusion) or placebo (5 min of placebo [10 mmHg] and 5 min of reperfusion) alternated in both lower limbs 30 min before maximal voluntary isometric contraction test. RFD was calculated over time intervals of 0–30, 0–50, and 0–200 ms and peak isometric torque was determined from the torque-time curve. Despite no significant difference, there was a moderate effect of ischemic preconditioning on rate of force development in time intervals of 0–30 ms, small effect in 0–50 ms, and trivial effect of ischemic preconditioning on rate of force development in 0–200 ms and on peak isometric torque. Conclusions Considering that RFD is a key factor of performance in tasks with limited time (
Published Version
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