Frisiello S, Gazaille A, O'Halloran J, Palmer M L, Waugh D
New England Memorial Hospital, Stoneham, MA.
J Orthop Sports Phys Ther. 1994 Jun;19(6):341-4. doi: 10.2519/jospt.1994.19.6.341.
In order for the Biodex isokinetic dynamometer to be used in clinical research, it must be documented to be a reliable measurement tool. The purpose of this study was to determine eccentric peak torque test-retest reliability for glenohumeral medial and lateral rotator muscles using the Biodex isokinetic dynamometer. Eighteen healthy men and women volunteers ranging in ages from 18 to 30 who exhibited no prior history of glenohumeral injury were studied. The subjects were tested bilaterally for eccentric glenohumeral medial rotation (MR) and lateral rotation (LR) at 90 and 120 degrees/sec using 0 degrees of shoulder abduction so that the subject's arm was in contact with his or her trunk. Seven days following the initial test, a retest was administered using the identical protocol. Data collection of pretesting and posttesting was done using the IBM basic computer and the Biodex software program. Test data were analyzed using the intraclass correlation coefficient. The test-retest results indicated: dominant LR at 90 degrees/sec, r = 0.86, and at 120 degrees/sec, r = 0.83; dominant MR at 90 degrees/sec, r = 0.76, and at 120 degrees/sec, r = 0.77; nondominant LR at 90 degrees/sec, r = 0.76, and at 120 degrees/sec, r = 0.83; and nondominant MR at 90 degrees/sec, r = 0.75, and at 120 degrees/sec, r = 0.83. The results demonstrate the isokinetic eccentric mode of the Biodex dynamometer to be reliable for the test-retest measure of peak torque. These data may be used to support future clinical research of the eccentric isokinetic mode of the Biodex isokinetic dynamometer.
为使Biodex等速测力计能够用于临床研究，必须证明其为可靠的测量工具。本研究的目的是使用Biodex等速测力计确定盂肱内、外侧旋转肌的离心峰值扭矩重测信度。对18名年龄在18至30岁之间、既往无盂肱损伤史的健康男性和女性志愿者进行了研究。受试者在肩部外展0度的情况下，以90度/秒和120度/秒的速度双侧进行盂肱内旋（MR）和外旋（LR）离心测试，使受试者的手臂与躯干接触。在初次测试7天后，使用相同方案进行重测。预测试和后测试的数据收集使用IBM基础计算机和Biodex软件程序完成。测试数据使用组内相关系数进行分析。重测结果表明：优势侧LR在90度/秒时，r = 0.86，在120度/秒时，r = 0.83；优势侧MR在90度/秒时，r = 0.76，在120度/秒时，r = 0.77；非优势侧LR在90度/秒时，r = 0.76，在120度/秒时，r = 0.83；非优势侧MR在90度/秒时，r = 0.75，在120度/秒时，r = 0.83。结果表明，Biodex测力计的等速离心模式在峰值扭矩重测测量中是可靠的。这些数据可用于支持未来关于Biodex等速测力计等速离心模式的临床研究。
