Reliability and responsiveness of two physical performance measures examined in the context of a functional training intervention
Reliability and responsiveness of two physical performance measures examined in the context of a functional training intervention
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DOI：
10.1093/ptj/80.1.8
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发表时间：
2000-01-01
期刊：
影响因子：
3.2
通讯作者：
Wolfson, L
中科院分区：
文献类型：
--
作者：
King, MB;Judge, JO;Wolfson, L
背景和目的。在这项非随机、对照的飞行员运动干预中，评估了2项体能指标的可靠性和反应性。科目45名行动不便的老年人（平均年龄=77.9岁，标准差=5.9，范围= 70-92）被依次分配到参加运动计划（干预组）或对照组。方法.干预组每周进行3次运动，持续12周，目标是肌肉力量，耐力，平衡和灵活性。结果测量是8项体能测试（PPT-8）和6分钟步行测试。重测信度和反应性指数确定两个：测试;评价者间的信度进行了测量的PPT-8。结果PPT-8评分者间信度的组内相关系数为0.96。PPT-8和6分钟步行测试的组内相关系数分别为0.88和0.93。与基线测量相比，干预组在PPT-8上提高了2.4分，对照组提高了0.7分。与对照组相比，干预组的6分钟步行测试距离没有变化。PPT-8的反应性指数为0.8，Ci-分钟步行试验的反应性指数为0.6。结论和讨论。PPT-8和6分钟步行测试的测量结果似乎非常可靠。PPT-8比6分钟步行测试对这种功能训练干预的预期表现变化的反应更灵敏。
Background and Purpose. The reliability and responsiveness of 2 physical performance measures were assessed in this nonrandomized, controlled pilot exercise intervention. Subjects. Forty-five older individuals with mobility impairment (mean age=77.9 years, SD=5.9, range = 70-92) were sequentially assigned to participate in an exercise program (intervention group) or to a control group. Methods. The intervention group performed exercise 3 times a week for 12 weeks that targeted muscle force, endurance, balance, and flexibility. Outcome measures were the 8-item Physical Performance Test (PPT-8) and the 6-minute walk test. Test-retest reliability and responsiveness indexes were determined for both: tests; interrater reliability was measured for the PPT-8. Results. The intraclass correlation coefficient for interrater reliability for the PPT-8 was .96. Intraclass correlation coefficients for test-retest reliability were .88 for the PPT-8 and .93 for the 6-minute walk test. The intervention group improved 2.4 points and the control group improved 0.7 point on the PPT-8, as compared with baseline measurements. There was no change in 6-minute walk test distance in the: intervention group; when compared with the control group. The responsiveness index was .8 for the PPT-8 and .6 fbr the Ci-minute walk test. Conclusion and Discussion. Measurements for both the PPT-8 and the 6-minute walk:test appeared to be highly reliable. The PPT-8 was more responsive than the 6-minute walk test to change in performance expected with this functional training intervention.