Development and application of eccentric contraction pedaling system for pulmonary rehabilitation

本研究的目的是开发一种用于肺康复的偏心收缩踏板(ECP)系统。将16名健康受试者随机分为ECP训练组(n=8)和常规踏板训练组(CP)，观察ECP和CP训练(60%VO2max负荷，4周，20min/d，每周3次)对小腿力量和股四头肌厚度的影响。两组患者的下肢力量、股四头肌厚度均有不同程度的改善，但ECP组的增加幅度大于CP组。这些结果表明，该ECP系统在肺康复运动训练中是有效的。

The purpose of this study was to develop an eccentric contraction pedaling(ECP) system for pulmonary rehabilitation. Sixteen healthy subjects were randomly assigned to an ECP training group(n=8) or to a conventional pedaling(CP) training group(n=8), and we examined the effect of ECP and CP training(60% VO2max load, 4 weeks period, 20min/day, 3 times a week) on strength of lower limb and thickness of quadriceps femoris. Both groups showed improved strength of lower limb and thickness of quadriceps femoris, but the rate of increase of the ECP group was larger than that of CP group. These results suggest that this ECP system is effective in exercise training for pulmonary rehabilitation.