Czerniecki J M, Lippert F, Olerud J E
Department of Rehabilitation Medicine, University of Washington, Seattle 98192.
Am J Sports Med. 1988 Jul-Aug;16(4):327-31. doi: 10.1177/036354658801600403.
ACL injury has been associated with increased instability of the knee in both in vitro and in vivo studies using passively applied forces. This study assessed tibiofemoral rotation after ACL injury during the functional activity of treadmill ambulation using a triaxial electrogoniometer. Isometric and isokinetic peak torques of the quadriceps and hamstrings were obtained using the Cybex II isokinetic dynamometer. Significant increases in tibiofemoral rotation were noted with increased running speed in the injured and normal knees. The degree of rotation in the injured limb did not significantly exceed that of the normal limb. Isokinetic strength of the quadriceps and hamstrings correlates significantly with the observed extent of rotation.
在使用被动施加力的体外和体内研究中，前交叉韧带（ACL）损伤都与膝关节稳定性增加有关。本研究使用三轴电子测角仪评估了在跑步机行走功能活动期间ACL损伤后的胫股旋转情况。使用Cybex II等速测力计获得了股四头肌和腘绳肌的等长和等速峰值扭矩。在受伤和正常膝关节中，随着跑步速度的增加，胫股旋转显著增加。受伤肢体的旋转程度没有显著超过正常肢体。股四头肌和腘绳肌的等速力量与观察到的旋转程度显著相关。
