J Orthop Sports Phys Ther. 1988;10(3):97-101. doi: 10.2519/jospt.1988.10.3.97.
The purpose of the present study was to 1) assess the relationship between the isometric and isokinetic peak torques (speed of movement 0, 60, 180 degrees /sec) and the total work output of multiple contractions (180 degrees /sec) of the quadriceps and hamstrings in 36 patients having a chronic anterior cruciate ligament (ACL) insufficient knee joint, and 2) determine the possible association of these muscle function parameters with the subjective and functional outcome of the ACL insufficient knees. At every test speed the Pearson product moment (r) and the Spearman rank (r,) correlation coefficients between the peak torque and the total work were highly significant for the quadriceps and hamstrings in the uninjured (r = 0.71-0.93, rs = 0.70-0.90) as well as in the anteriorly unstable (r = 0.82-0.89, rs = 0.79-0.86) knees. All correlation coefficients were higher at the highest speed (180 degrees /sec) of the isokinetic test (r = 0.85-0.93, rs = 0.85-0.90) than at the other speeds (0 and 60 degrees /sec) (r = 0.71 -0.90, rs = 0.70-0.85) obviously since the total work was registered at that speed. Both the peak torque and total work parameters of quadriceps as well as hamstrings correlated significantly with the subjective and functional outcome of the ACL insufficient knees (r = 0.75-0.84, rs = 0.76-0.85): the better the muscular function the better the outcome. In conclusion, in anteriorly unstable knees the total work analysis offers little additional information to that attained by the peak torque measurements. J Orthop Sports Phys Ther 1988;10(3):97-101.
1）评估 36 例慢性前十字韧带（ACL）不健全膝关节患者的股四头肌和腘绳肌的等速和等长峰值扭矩（运动速度 0、60、180°/秒）与多次收缩（180°/秒）的总功输出之间的关系，2）确定这些肌肉功能参数与 ACL 不健全膝关节的主观和功能结果的可能关联。在每个测试速度下，未受伤膝关节（r = 0.71-0.93，rs = 0.70-0.90）以及前向不稳定膝关节（r = 0.82-0.89，rs = 0.79-0.86）中，等长和等速峰值扭矩与总功之间的 Pearson 乘积矩（r）和 Spearman 秩相关系数（r s）高度显著。在最高测试速度（180°/秒）的等速测试中，所有相关系数（r = 0.85-0.93，rs = 0.85-0.90）均高于其他速度（0 和 60°/秒）（r = 0.71-0.90，rs = 0.70-0.85），因为总功是在该速度下记录的。股四头肌和腘绳肌的峰值扭矩和总功参数均与 ACL 不健全膝关节的主观和功能结果显著相关（r = 0.75-0.84，rs = 0.76-0.85）：肌肉功能越好，结果越好。总之，在前向不稳定的膝关节中，总功分析提供的信息几乎没有超过峰值扭矩测量所获得的信息。《矫形与运动物理治疗杂志》1988 年；10（3）：97-101。
