Werner D M, Di Stasi S, Lewis C L, Barrios J A
Department of Physical Therapy, University of Dayton, 300 College Park, USA.
Division of Physical Therapy, School of Health and Rehabilitation Sciences, The Ohio State University, 453 W 10th Avenue, Atwell Hall, Columbus, OH, USA; Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, USA.
Phys Ther Sport. 2019 Nov;40:169-176. doi: 10.1016/j.ptsp.2019.09.011. Epub 2019 Sep 24.
Establish between-day test-retest reliability metrics for 2-dimensional frontal plane projection angles (FPPAs) during the lateral step-down (LSD), single-limb squat (SLS), single-limb landing (SLL), and drop vertical jump (DVJ).
Test-retest reliability study.
University laboratory.
20 healthy adults (12 female, age = 23.60 ± 1.93 years old, body mass index = 24.26 ± 2.54 kg/m) were tested on 2 separate occasions 7-14 days apart.
Intraclass correlation coefficients (ICC), standard errors of the measurement (SEM), and minimal detectable change (MDC) values across the LSD, SLS, SLL, and DVJ for the following body region variables: trunk, trunk on pelvis, pelvis, hip, thigh to vertical, knee, and shank to vertical.
There was moderate-to-substantial between-day test-retest reliability for nearly all body regions across all tasks (ICC = 0.65-0.96). SEM values varied across body regions and tasks (0.9-3.5°). MDCs were variable (2.3-9.8°). Of the body regions, MDCs were largest for the knee and hip. By task, MDCs were lowest for the LSD.
This study identified between-day test-retest reliability metrics for 2-dimensional FPPAs across a variety of body regions during commonly assessed clinical tasks. These data allow clinicians and researchers to more confidently assess true change between assessments or over time.
确定在侧向下蹲（LSD）、单腿深蹲（SLS）、单腿落地（SLL）和垂直跳（DVJ）过程中二维额状面投影角度（FPPA）的日间重测信度指标。
重测信度研究。
大学实验室。
20名健康成年人（12名女性，年龄 = 23.60 ± 1.93岁，体重指数 = 24.26 ± 2.54 kg/m）在相隔7 - 14天的两个不同时间点接受测试。
对以下身体区域变量在LSD、SLS、SLL和DVJ过程中的组内相关系数（ICC）、测量标准误（SEM）和最小可检测变化（MDC）值：躯干、骨盆上的躯干、骨盆、髋部、大腿与垂直方向、膝盖以及小腿与垂直方向。
在所有任务中，几乎所有身体区域的日间重测信度为中等至高度（ICC = 0.65 - 0.96）。SEM值因身体区域和任务而异（0.9 - 3.5°）。MDC各不相同（2.3 - 9.8°）。在身体区域中，膝盖和髋部的MDC最大。按任务来看，LSD的MDC最低。
本研究确定了在常见的临床评估任务中，二维FPPA在不同身体区域的日间重测信度指标。这些数据使临床医生和研究人员能够更自信地评估两次评估之间或随时间的真实变化。
