Effects of low intensity muscle training with vascular occlusion on muscular strength and endurance

概要

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This study investigated whether ischemic exercise training (TR_<IS+EX>) would increase endurance of ischemic (EX_<IS>) and ramp (EX_<RA>) knee extension tests more than exercise training (TR_<EX>) alone. Ten healthy subjects participated pre- and post-tests with each leg. For EX_<RA>, after warm-up a weight was added each min until exhaustion. EX_<IS> was similar, but after warm-up, a thigh cuff was inflated to 150mm Hg instead of adding weights. One leg was chosen for TR_<IS+EX> (cuff inflated to 150mm Hg during exercise) and the other for TR_<EX>, both with a small weight on each leg, 4-6 times for 3-5 min each per daily session, 5 days per week for 6 weeks. EX_<IS> duration increased 120% more (P=0.002) in the TR_<IS+EX> leg than in the contra-lateral TR_<EX> leg, whereas EX_<RA> duration increased only 16% (NS). TR_<IS+EX> and TR_<EX> significantly attenuated the ventilation increase (ergoreflex) during EX_<IS>. The O_2 debt for EX_<IS> was significantly lower and systolic blood pressure recovery was faster after TR_<IS+EX> than after TR_<EX>. Heart rate recovery after EX_<RA> and EX_<IS> was faster after TR_<IS+EX>. Apparently TR_<IS+EX> with low-intensity resistance increases exercise endurance and attenuates the ergoreflex and therefore, may be a useful tool to increase regional muscle endurance in order to improve systemic exercise capacity in patients.
中京大学の論文
2005-12-20