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首页> 美国卫生研究院文献>British Journal of Sports Medicine >Isokinetic strength of the quadriceps and hamstrings and functional ability of anterior cruciate deficient knees in recreational athletes.
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Isokinetic strength of the quadriceps and hamstrings and functional ability of anterior cruciate deficient knees in recreational athletes.

机译：在休闲运动员中股四头肌和绳肌的等速运动强度以及前十字形膝关节屈膝的功能能力。

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OBJECTIVE: To test the hypothesis that increasing the hamstrings and quadriceps (H:Q) isokinetic strength ratio will, in the short term, improve the functional ability of an anterior cruciate ligament (ACL) deficient knee. METHODS: The isokinetic muscular characteristics at a speed of 60 degrees s-1 and 180 degrees s-1 of 46 recreational athletes with an arthroscopically confirmed ACL tear were determined using the Cybex II+ isokinetic dynamometer. The variables tested included peak torque, endurance ratio, total work output, and explosive power. Functional ability was scored with the Cincinnati rating system, measuring the severity of pain and swelling, the degree of giving way, and the overall ability to walk, run, ascent and descent stairs, jump and twist. RESULTS: Among all muscular characteristics, the H:Q ratio at 180 degrees s-1 at 30 degrees of knee flexion was shown to have the highest correlation to the functional score (r = 0.6249, P < 0.001). All variables involving hamstring strength were shown to be significantly correlated to the functional ability score (P < 0.01), while none of the variables involving quadriceps strength showed significant correlation with the functional ability of the injured knee. CONCLUSIONS: The H:Q ratio is strongly correlated to the functional ability of ACL deficient knees in Chinese recreational athletes. It could be used as an additional measure to guide in the decision making process in the management of ACL deficient knees.
机译：目的：检验以下假设，即增加腿筋和股四头肌（H：Q）的等速力量比，将在短期内改善前交叉韧带（ACL）膝关节的功能。方法：使用Cybex II +等速测力计测定了46名经关节镜确认ACL撕裂的休闲运动员在60度s-1和180度s-1速度下的等速肌肉特性。测试的变量包括峰值扭矩，耐力比，总功输出和爆炸功率。使用辛辛那提（Cincinnati）评分系统对功能能力进行评分，测量疼痛和肿胀的严重程度，让步的程度以及步行，奔跑，上升和下降楼梯，跳跃和扭曲的整体能力。结果：在所有肌肉特征中，膝关节屈曲30度时180度s-1的H：Q比与功能评分相关性最高（r = 0.6249，P <0.001）。所有涉及绳肌力量的变量均显示与功能能力评分显着相关（P <0.01），而与股四头肌力量相关的变量均未显示与受伤膝盖的功能能力显着相关。结论：H：Q比值与中国休闲运动员ACL缺陷膝盖的功能能力密切相关。它可以用作指导ACL缺陷膝盖管理决策过程的一种附加措施。

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