Steiner L A, Harris B A, Krebs D E
Program in Physical Therapy, Massachusetts General Hospital Institute of Health Professions, Boston 02114.
Arch Phys Med Rehabil. 1993 Dec;74(12):1327-35. doi: 10.1016/0003-9993(93)90088-r.
This study assessed the test-retest reliability of knee isokinetic eccentric muscle performance in subjects with and without a history of tibio-femoral pathology. Nineteen adults were tested at 60 degrees/sec and 180 degrees/sec on three occasions using a standardized protocol that incorporates a same-session learning phase. Results revealed moderate to excellent reliability for average peak torque test-retest ICC (2,1) = .58 to .96, total work ICC = .63 to .93, and power ICC = .67 to .93. Joint angle at peak torque was unreliable (ICC = .01 to .69) for both muscle groups at both angular velocities. Knee flexion reliability was higher than extension reliability at both 60 degrees/sec and 180 degrees/sec. Subjects with tibio-femoral pathologies had ICC values lower than the healthy subjects. Reliable eccentric isokinetic measurements can be obtained for average peak torque, total work, and power. Clinicians should not assume the same degree of reliability in testing patients as in testing healthy subjects.
本研究评估了有和没有胫股关节病变病史的受试者膝关节等速离心肌肉功能的重测信度。19名成年人按照包含同组学习阶段的标准化方案，在60度/秒和180度/秒的速度下进行了三次测试。结果显示，平均峰值扭矩的重测组内相关系数（ICC，2,1）为0.58至0.96，总功的ICC为0.63至0.93，功率的ICC为0.67至0.93，重测信度为中等至优秀。在两个角速度下，两组肌肉的峰值扭矩时的关节角度均不可靠（ICC = 0.01至0.69）。在60度/秒和180度/秒时，膝关节屈曲的信度均高于伸展的信度。有胫股关节病变的受试者的ICC值低于健康受试者。对于平均峰值扭矩、总功和功率，可以获得可靠的离心等速测量结果。临床医生不应假定在测试患者时的信度程度与测试健康受试者时相同。
