对有撞击症状的上肢运动员在前伸-后缩运动过程中肩胛旋转肌等速肌力产生及相关肌肉活动的评估。
Evaluation of isokinetic force production and associated muscle activity in the scapular rotators during a protraction-retraction movement in overhead athletes with impingement symptoms.
作者信息
Cools A M, Witvrouw E E, Declercq G A, Vanderstraeten G G, Cambier D C
机构信息
Rhabilitation Sciences and Physiology, Ghent University, Ghent, Belgium.
出版信息
Br J Sports Med. 2004 Feb;38(1):64-8. doi: 10.1136/bjsm.2003.004952.
Abstract
OBJECTIVES
To determine if the muscle force and electromyographic activity in the scapular rotators of overhead athletes with impingement symptoms showed differences between the injured and non-injured sides.
METHODS
Isokinetic peak force was evaluated during protraction and retraction of the shoulder girdle, with simultaneous recording of electromyographic activity of the three trapezius muscles and the serratus anterior muscle, in 19 overhead athletes with impingement symptoms.
RESULTS
Paired t tests showed significantly lower peak force during isokinetic protraction at high velocity (p<0.05), a significantly lower protraction/retraction ratio (p<0.01), and significantly lower electromyographic activity in the lower trapezius muscle during isokinetic retraction on the injured side than on the non-injured side (p<0.05).
CONCLUSION
These results confirm that patients with impingement symptoms show abnormal muscle performance at the scapulothoracic joint.
摘要
目的
确定有撞击症状的过头运动运动员肩胛旋转肌的肌力和肌电图活动在受伤侧与未受伤侧之间是否存在差异。
方法
对19名有撞击症状的过头运动运动员，在肩带前伸和后缩过程中评估等速峰值力，同时记录三块斜方肌和前锯肌的肌电图活动。
结果
配对t检验显示，受伤侧在高速等速前伸时的峰值力显著降低（p<0.05），前伸/后缩比值显著降低（p<0.01），且在等速后缩时，受伤侧下斜方肌的肌电图活动显著低于未受伤侧（p<0.05）。
结论
这些结果证实，有撞击症状的患者在肩胛胸壁关节处表现出异常的肌肉功能。
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