Brent L. Arnold is Doctoral Student in Sports Medicine at Curry School of Education, University of Virginia, Charlottesville, VA 22903.
J Athl Train. 1993 Fall;28(3):227-9.
To determine the reliability of concentric quadriceps muscle torque at 30 degrees , 60 degrees , and 75 degrees of knee extension, 25 female university students were studied. Each subject was tested on the Kin-Com isokinetic dynamometer on 2 separate days, 7 days apart. The dynamometer's speed was set at 60 degrees ls. Intraclass correlation coefficients for 30 degrees , 60 degrees , and 75 degrees were 0.84 (p<.01), 0.87 (p<.01), and 0.83(p<.01), respectively. The standard errors of the measure were 5.92 N.m, 7.65 N.m, and 7.35 N.m, respectively. Based on the instrumentation and protocol used in this study, we believe angle-specific torques have good reliability. Because of the error size, clinicians using similar methodology to determine angle-specific torques should be cautious when comparing differences between angle-specific torques of less than 12 to 16 N.m.
为了确定在膝关节伸展 30 度、60 度和 75 度时等速向心股四头肌力矩的可靠性，研究了 25 名女大学生。每位受试者在 Kin-Com 等速测力仪上分别在 2 天内进行测试，间隔 7 天。测力仪的速度设置为 60 度/s。30 度、60 度和 75 度的组内相关系数分别为 0.84（p<.01）、0.87（p<.01）和 0.83（p<.01）。测量的标准误差分别为 5.92 N.m、7.65 N.m 和 7.35 N.m。基于本研究中使用的仪器和方案，我们认为特定角度的扭矩具有良好的可靠性。由于误差大小，临床医生在使用类似方法确定特定角度的扭矩时，应谨慎比较小于 12 到 16 N.m 的特定角度扭矩之间的差异。
