健康成人等张肌力测试的重测信度研究

关键词：等张肌力测试 重测信度 股四头肌 胭绳肌

Keywords:isometric test  test-retest reliability  quadriceps femoris  hamstring

摘要：

      目的：研究等张肌力测试系统所测健康成年人股四头肌、胭绳肌等张肌力各项参数的重测信度．为等张肌力测试的临床推广应用提供基础依据。方法：成年人20名，分别对左右侧股四头肌、胭绳肌进行等张肌力测试．1周后在一天内的同一时间由同一施测者进行重复测试。以组内相关系数（intraclass correlation coefficient，ICC）检验重测信度，α≥0．4视为可信。结果：除左侧股四头肌及右侧胭绳肌疲劳系数的ICC〈0．4外．其他参数（包括左右侧股四头肌和胭绳肌前后两次向心，离心收缩最大输出功率、平均最大输出功率、最大输出功率所处平均位置、平均输出功率、最大收缩速率、平均最大收缩速率、最大力量、平均最大力量及总功）前后两次测量的ICC均≥0．4。结论：使用等张肌力测试系统进行等张肌力的测试与评价，具有稳定、可靠、易于操作的特点，是徒手肌力检查的数字化补充．在临床推广应用方面有一定的价值。

Abstract:

      Objective: To evaluate the test-retest reliability of isometric test of quadriceps femoris and hamstring by EN-Tree M Explosive pulley 2000.Method:Twenty healthy adults participated in the study. Each participant was tested twice by the same tester at an interval of one week. ICC(intraclass correlation coefficient) was calculated to describe the reliability of the two tests. Result:There are fair to excellent correlations (ICC 0.4457-0.9099) in all the parameters including peak power, average peak power, average position at peak power, average power, peak velocity, average peak velocity, peak force, average peak force and total work except fatigue index of the pulley. Conclusion: Although the testing methods need some development, isometric test by the EN-Tree M explosive pulley 2000 is a reliable evaluation and easy to operate. Further utilization of the test in clinic should be considered.