Concurrent validity and reliability of two-dimensional video analysis of hip and knee joint motion during mechanical lifting
Concurrent validity and reliability of two-dimensional video analysis of hip and knee joint motion during mechanical lifting
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DOI：
10.3109/09593985.2010.533745
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发表时间：
2011-10-01
影响因子：
2
通讯作者：
Olson, Sharon L.
中科院分区：
文献类型：
--
作者：
Norris, Beth S.;Olson, Sharon L.
在机械举起过程中使用的运动模式通常由临床医生主观评估为弯腰或蹲基于关节运动和位置的视觉估计。二维（2D）视频分析具有客观测量机械升降任务期间关节运动的潜力。本研究考察了使用Dartfish软件测量机械举重过程中髋关节和膝关节矢状面角的二维视频分析的并发效度、内测、间测和重测信度。15名健康女性参与者（平均年龄27.1 +/- 7.1岁）在2个独立的测试日进行机械举重。通过比较二维导出的髋关节和膝关节屈曲角度与测量角度来确定并发效度。利用具有不同达特菲什软件使用经验的审查员来确定二维运动学程序的内部和内部可靠性。评估机械提升期间髋关节和膝关节2D运动学的日间测试-重测可靠性。使用Dartfish软件进行二维角度分析的同时有效性得到了高相关性（Pearson r >= 0.95）的支持，二维和髋关节和膝关节矢状面运动的角度测量之间无显著差异。髋关节和膝关节屈曲角度的关节内和关节间可靠性值均极好（ICC >= 0.91）。髋部和膝关节屈曲的ICCs重测信度分别为0.79和0.91。这些发现和使用该系统获取数据的便利性为二维视频分析的临床应用提供了支持，从而在动态功能任务期间提供髋关节和膝关节运动模式的客观测量。
Movement patterns used during mechanical lifting are usually assessed subjectively by clinicians as a stoop or squat based on visual estimation of joint motion and position. Two-dimensional (2D) video analysis has the potential to objectively measure joint motion during a mechanical lifting task. This study investigated concurrent validity, intrarater, interrater, and test-retest reliability of 2D video analysis using Dartfish software for the measurement of sagittal plane angles at the hip and knee during mechanical lifting. Fifteen healthy female participants (mean age 27.1 +/- 7.1 years) were recruited to perform mechanical lifting on 2 separate test days. Concurrent validity was determined by comparing 2D derived hip and knee flexion angles to goniometric measures. Intrarater and interrater reliability of the 2D kinematic procedures was determined by using examiners with varying experience in the use of Dartfish software. Between-day test-retest reliability of hip and knee 2D kinematics during mechanical lifting was assessed. Concurrent validity of 2D angle analysis using Dartfish software was supported by high correlations (Pearson r >= 0.95) and nonsignificant differences between 2D and goniometric measures of sagittal plane hip and knee motion. Both intrarater and interrater reliability values of hip and knee flexion angles were excellent (ICC >= 0.91). ICCs for test-retest reliability were 0.79 and 0.91 for hip and knee flexion, respectively. These findings and the ease of data capture using this system provide support for the clinical utility of 2D video analysis to provide objective measures of movement patterns at the hip and knee during a dynamic functional task.