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首页> 美国卫生研究院文献>The Journal of Manual Manipulative Therapy >Reliability and Measurement Error of Active Knee Extension Range of Motion in a Modified Slump Test Position: A Pilot Study
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Reliability and Measurement Error of Active Knee Extension Range of Motion in a Modified Slump Test Position: A Pilot Study

机译：修正跌落测试位置中活动膝关节活动范围的可靠性和测量误差：一项初步研究

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The slump test is a tool to assess the mechanosensitivity of the neuromeningeal structures within the vertebral canal. While some studies have investigated the reliability of aspects of this test within the same day, few have assessed the reliability across days. Therefore, the purpose of this pilot study was to investigate reliability when measuring active knee extension range of motion (AROM) in a modified slump test position within trials on a single day and across days. Ten male and ten female asymptomatic subjects, ages 20–49 (mean age 30.1, SD 6.4) participated in the study. Knee extension AROM in a modified slump position with the cervical spine in a flexed position and then in an extended position was measured via three trials on two separate days. Across three trials, knee extension AROM increased significantly with a mean magnitude of 2° within days for both cervical spine positions (P>0.05). The findings showed that there was no statistically significant difference in knee extension AROM measurements across days (P>0.05). The intraclass correlation coefficients for the mean of the three trials across days were 0.96 (lower limit 95% CI: 0.90) with the cervical spine flexed and 0.93 (lower limit 95% CI: 0.83) with cervical extension. Measurement error was calculated by way of the typical error and 95% limits of agreement, and visually represented in Bland and Altman plots. The typical error for the cervical flexed and extended positions averaged across trials was 2.6° and 3.3°, respectively. The limits of agreement were narrow, and the Bland and Altman plots also showed minimal bias in the joint angles across days with a random distribution of errors across the range of measured angles. This study demonstrated that knee extension AROM could be reliably measured across days in subjects without pathology and that the measurement error was acceptable. Implications of variability over multiple trials are discussed. The modified set-up for the test using the Kincom dynamometer and elevated thigh position may be useful to clinical researchers in determining the mechanosensitivity of the nervous system.
机译：坍落度测试是评估椎管内神经脑膜结构的机械敏感性的工具。尽管一些研究在同一天内调查了此测试各方面的可靠性，但很少有人评估过几天的可靠性。因此，本试验研究的目的是调查在一天或几天内的试验中，在修改后的坍落度测试位置中测量活动膝关节活动范围（AROM）时的可靠性。年龄为20-49岁（平均年龄30.1，标准差6.4）的10名男性和10名女性无症状受试者参加了研究。经过两天的三项试验，测量了膝关节伸展AROM处在改变的坍落位置，颈椎处于弯曲位置，然后处于伸展位置。在三项试验中，两个颈椎位置的膝关节伸展AROM均在几天内平均增加了2°（P> 0.05）。研究结果表明，跨天的膝关节伸展AROM测量值无统计学意义（P> 0.05）。颈椎屈曲时，三项试验的平均值在一天中的组内相关系数为0.96（下限95％CI：0.90）和颈椎伸展时为0.93（下限95％CI：0.83）。通过典型误差和95％的一致性极限来计算测量误差，并在Bland和Altman图中直观表示。在整个试验中，平均颈屈曲和伸展位置的典型误差分别为2.6°和3.3°。一致性的范围很窄，Bland和Altman图也显示了关节角度跨天的最小偏差，并且在测量角度范围内误差随机分布。这项研究表明，在没有病理学的情况下，可以连续几天可靠地测量膝盖延伸AROM，并且测量误差是可以接受的。讨论了在多个试验中的变异性。使用Kincom测力计和升高的大腿位置进行测试的修改后的设置可能对临床研究人员确定神经系统的机械敏感性有用。

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