Morris-Chatta R, Buchner D M, de Lateur B J, Cress M E, Wagner E H
Department of Health Services, University of Washington, Seattle 98195.
Arch Phys Med Rehabil. 1994 Nov;75(11):1213-6. doi: 10.1016/0003-9993(94)90007-8.
The study purposes were (1) to estimate the inter-rater reliability of isokinetic strength tests at the ankle in older adults (test-retest interval of three to 7 days), and to determine whether more experienced examiners were more reliable; and (2) to estimate 6 month stability of strength tests. Inter-rater reliability was high for plantar flexion and dorsiflexion tests where average strength was more than about 10 Newton-meters (Nm) (Pearson R = 0.87-0.95). When average strength was less than 10Nm, reliability was less (R = 0.42-0.75). Experienced examiners (physical therapists) and less experienced examiners (research assistants) were equally reliable. Variability in strength over 6 months was no greater than variability over a few days. We conclude that isokinetic tests of ankle strength in older adults are highly reliable and stable when examiners are adequately trained and subjects maintain usual physical activity levels.
（1）评估老年人踝关节等速肌力测试的评分者间信度（重测间隔为3至7天），并确定经验更丰富的检查者是否更可靠；（2）评估肌力测试6个月的稳定性。对于平均力量超过约10牛顿米（Nm）的跖屈和背屈测试，评分者间信度较高（皮尔逊相关系数R = 0.87 - 0.95）。当平均力量小于10 Nm时，信度较低（R = 0.42 - 0.75）。经验丰富的检查者（物理治疗师）和经验较少的检查者（研究助理）的信度相同。6个月内力量的变异性不大于几天内的变异性。我们得出结论，当检查者经过充分培训且受试者保持平常身体活动水平时，老年人踝关节等速肌力测试具有高度的可靠性和稳定性。
