Hanten W P, Ramberg C L
School of Physical Therapy, Texas Woman's University, Houston 77030.
Phys Ther. 1988 Feb;68(2):219-22. doi: 10.1093/ptj/68.2.219.
The purpose of this study was to investigate the effect of stabilization on the maximal isokinetic torque generated by the quadriceps femoris muscle during concentric and eccentric contractions at different velocities using the KIN/COM isokinetic dynamometer. Fifteen female volunteers between the ages of 18 and 32 years were trained to perform maximal isokinetic concentric and eccentric contractions. Each subject participated in two testing sessions. In one testing session, subjects were stabilized maximally, and in the other testing session, subjects were stabilized minimally. Subjects were tested both concentrically and eccentrically at velocities of 30 degrees, 60 degrees, 90 degrees, 120 degrees, 150 degrees, 180 degrees, and 200 degrees/sec. The velocity sequence and stabilization procedure used were randomly assigned. Two nested model analyses of variance followed by post hoc comparisons were used to analyze the data. Results revealed no significant difference between the maximal stabilization procedure and the minimal stabilization procedure for concentric and eccentric contractions. The results of this study should aid rehabilitation specialists in the development of testing and rehabilitation procedures when using the KIN/COM.
本研究的目的是使用KIN/COM等速测力计，研究稳定化对股四头肌在不同速度下进行向心和离心收缩时产生的最大等速扭矩的影响。15名年龄在18至32岁之间的女性志愿者接受训练，以进行最大等速向心和离心收缩。每个受试者参加两个测试环节。在一个测试环节中，受试者被最大程度地稳定；在另一个测试环节中，受试者被最小程度地稳定。受试者在30度、60度、90度、120度、150度、180度和200度/秒的速度下进行向心和离心测试。所使用的速度序列和稳定程序是随机分配的。采用两次嵌套模型方差分析及事后比较来分析数据。结果显示，向心和离心收缩的最大稳定程序和最小稳定程序之间没有显著差异。本研究结果应有助于康复专家在使用KIN/COM时制定测试和康复程序。
