Kneeling Leg Curl with Internal Rotation Training Improves Agility in Patients with Anterior-posterior Laxity of Knee

目的：探討加強膝關節內轉肌群的肌力訓練是否可有效改善膝前後鬆弛病人之敏捷度。方法：20位有膝關節前後鬆弛的男性被隨機分配到三個實驗組，執行不同模式的肌力訓練：斜躺腿部推蹬訓練、內旋跪姿腿後勾舉訓練及一般跪姿腿後勾舉訓練。膝關節穩定的對照組則不進行訓練。評估則為訓練前後膝關節前後穩定度、折返跑敏捷度和等速肌力。結果：和自己的正常腳相比，前後鬆弛的膝關節該側折返跑敏捷度較差，此可經由六個星期的斜躺腿部推蹬或內旋跪姿腿後勾舉訓練改善。斜躺腿部推蹬或內旋跪姿腿後勾舉可強化內轉肌之等速肌力。三種訓練模式皆能減少KT2000測試中前後位移的程度。結論：斜躺腿部推蹬和內旋跪姿腿後勾舉著重膝關節的內轉肌群，可以改善膝關節的前後鬆弛度及折返跑敏捷度。內旋跪姿腿後勾舉可作為進階訓練，或正值不適宜斜躺腿部推蹬訓練時之替代。

關鍵字

前十字韌帶(anterior cruciate ligament) ；鬆弛(laxity) ；肌力訓練(muscle strengthening) ；運動表現(athletic performance)

並列摘要

Objective: Whether strengthening exercises emphasizing on internal rotators of the knee are more effective in improving shuttle-run agility of the knees with anterior-posterior laxity (AP laxity). Methods: Twenty men with AP laxity of knee were randomly assigned to the three experimental groups in different strengthening modes: plate-loaded squat press (SP), plate-loaded kneeling leg curl with internal rotation (KLCIR), and kneeling leg curl (KLC). Control group with stable knees received no training. Anterior-posterior laxity, shuttle-run agility, and isokinetic strength were evaluated before and after training. Results: Those with AP laxity of knee have poorer performance in the shuttle run test than their contralateral sound side, and this vulnerability is improved after six-week SP or KLCIR training. Isokinetic strength of medial hamstring is increased after KLICR and SP training. The anterior displacement by KT 2000 are decreased among the three training groups. Conclusions: KLCIR, as SP, emphasizing knee internal rotators, enhances both AP laxity and shuttle-run agility. KLCIR can be either an advanced or an alternative mode to SP in the strengthening exercise of knees with AP laxity.

並列關鍵字

anterior cruciate ligament ； laxity ； muscle strengthening ； athletic performance

國際替代計量

Kneeling Leg Curl with Internal Rotation Training Improves Agility in Patients with Anterior-posterior Laxity of Knee

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