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在高水平的年轻运动员中,在ACL重建后四个月后,四肢神经肌肉活动和膝盖延伸器强度之间的关系

Takuya Sengoku^1,2, Yuichi Nishikawa³, Takaya Watabe²

¹Section of Rehabilitation, Kanazawa University Hospital, Kanazawa, Japan.

Orthopaedic journal of sports medicine

|December 15, 2025

概括

在ACL重建后使用四肢肌自移植会由于神经肌肉活动的改变而损害膝盖延伸器的强度. 这项研究发现四头肌的运动单元放电率更高,与受影响四肢的力量缺陷相关.

科学领域:

整形外科手术整形外科手术
运动医学运动医学
神经肌肉生理学神经肌肉生理学

背景情况:

在前十字带 (ACL) 重建后恢复膝盖延伸器的力量是具有挑战性的.
四头肌神经肌肉活动在ACL重建后与四头肌 (QT) 自体移植后持续疲弱中的作用尚不清楚.

研究的目的:

为了调查改变四头肌神经肌肉活动是否有助于膝盖延伸器强度受损ACL重建后使用QT自体移植与腿筋肌 (HT) 自体移植相比.

主要方法:

一项涉及31名患者 (4个月ACL重建后) 的横截面研究,比较QT (n=15) 和HT (n=16) 组.
评估膝盖延伸器的强度 (同位数和异动力学) 和巨大的侧侧/中侧运动单元放电率 (MU DR) 在同位数收缩期间通过电肌图.

主要成果:

在QT和HT群体之间,在同位体强度四肢对称指数上没有显著差异.
与HT组相比,QT组的异动力强度在60度/秒时显著低于HT组.
在QT组中,在最大同位数收缩期间观察到广中的改变MU DR,并且与同位数强度缺陷相关.

结论:

通过QT自体移植进行ACL重建后,四肢神经肌肉活动发生变化,特别影响广的中枢.
这些神经肌肉变化与肌肉力量的减少相关,突出显示了受损恢复的潜在机制.

关键词:

前十字带的前十字带.高密度表面电肌图 (HD-sEMG) 是一种高密度表面电肌图.神经肌肉活动神经肌肉活动四头肌肌自体移植

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