Validity and reliability of measurements obtained with an "activity monitor" in people with and without a transtibial amputation
Validity and reliability of measurements obtained with an "activity monitor" in people with and without a transtibial amputation
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DOI：
10.1093/ptj/78.9.989
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发表时间：
1998-09-01
期刊：
影响因子：
3.2
通讯作者：
Stam, HJ
中科院分区：
文献类型：
--
作者：
Bussmann, HBJ;Reuvekamp, PJ;Stam, HJ
背景和目的。在这项研究中，使用“活动监测器”(AM)对测量结果的有效性和可靠性进行了检验。该仪器旨在通过使用加速计信号监测移动活动，并检测与活动相关的几种活动(站立、坐、卧、过渡、与运动相关的活动)。受试者。4名接受经胫骨截肢的男性和4名未接受经胫骨截肢的男性参与研究。方法：研究方法。受试者进行正常的日常活动，在此期间测量加速度并录制录像带(参照法)。通过计算AM输出和录像带记录之间的一致性分数，以及通过比较两种方法确定的转换次数和活动持续时间来评估有效性。结果。AM输出和录像带记录的总体符合率为90%。除确定过渡次数和活动持续时间外，其他协议分数一般在0%至10%的误差范围内。结论和讨论。AM测量的信度和效度良好，支持其在康复和物理治疗中的潜在应用。
Background and Purpose. In this study, the validity and reliability of measurements obtained with an "Activity Monitor" (AM) were examined. The instrument is designed to monitor ambulatory activity by use of accelerometer signals, and it detects several activities associated with mobility (standing, sitting, lying, transitions, movement-related activities). Subjects. Four men with a transtibial amputation and 4 men without a transtibial amputation participated. Methods. The subjects performed normal daily activities, during which accelerations were measured and videotape recordings were made (reference method). Validity was assessed by calculating agreement scores between the AM output and the videotape recordings and by comparing the number of transitions and the duration of activities determined by both methods. Results. The overall agreement between the AM output and the videotape recordings was 90%. Other agreement scores, in addition to the determination of the number of transitions and the duration of activities, were generally within a range of error of 0% to 10%. Conclusion and Discussion. The reliability and validity of the AM measurements appeared to be good, which supports its potential use in rehabilitation and physical therapy.