# 髖屈肌群嚴重縮短的人很多都會側睡,睡覺時呈胎兒姿勢,做這姿勢時,髖屈肌群會處於最短長度。缺點是,要坐起來、甚至站直的時候,拉長髖屈肌群的過程會讓肌肉與腰椎相連的位置感覺到強烈的疼痛。——《疼痛、復健與肌力訓練全書》
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