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Experimental knee pain impairs submaximal force steadiness in isometric eccentric and concentric muscle actions

机译:实验性膝关节疼痛会削弱等距离心和同心肌肉动作中的最大力量稳定性

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摘要

IntroductionPopulations with knee joint damage, including arthritis, have noted impairments in the regulation of submaximal muscle force. It is difficult to determine the exact cause of such impairments given the joint pathology and associated neuromuscular adaptations. Experimental pain models that have been used to isolate the effects of pain on muscle force regulation have shown impaired force steadiness during acute pain. However, few studies have examined force regulation during dynamic contractions, and these findings have been inconsistent. The goal of the current study was to examine the effect of experimental knee joint pain on submaximal quadriceps force regulation during isometric and dynamic contractions.
机译:简介患有膝关节损伤(包括关节炎)的人群注意到次最大肌肉力量的调节受到损害。考虑到关节病理学和相关的神经肌肉适应性,很难确定此类损伤的确切原因。用于隔离疼痛对肌肉力量调节作用的实验性疼痛模型显示,急性疼痛期间力量稳定性受损。但是,很少有研究检查动态收缩过程中的力量调节,这些发现并不一致。当前研究的目的是检查等距和动态收缩过程中实验性膝关节疼痛对股四头肌力量调节的影响。

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