Nae Jenny, Creaby Mark W, Nilsson Gustav, Crossley Kay M, Ageberg Eva
J Orthop Sports Phys Ther. 2017 Nov;47(11):863-873. doi: 10.2519/jospt.2017.7270. Epub 2017 Oct 15.
Study Design Cross-sectional study. Background Visual rating of postural orientation during functional tasks may be a valuable tool to track rehabilitation progress following anterior cruciate ligament (ACL) injury. A valid test battery assessing postural orientation as a separate construct is lacking. Objectives To evaluate measurement properties of a test battery to assess postural orientation in patients with ACL injury. Methods The content validity of functional tasks was assessed by expert focus group discussions. Fifty-one patients (45% women) with ACL injury performed 9 functional tasks of varying difficulty. Interpretability, internal consistency, interrater reliability, and measurement error were assessed for segment-specific postural orientation errors (POEs), within-task POEs, and total POE score. Postural orientation errors were scored on video on an ordinal scale from 0 (no POEs) to 3 (major POEs). Results Stair ascent, deep squat, and crossover hop for distance were excluded in focus group discussions. Postural orientation errors in some tasks were excluded due to floor effects. The mini-squat and drop jump were excluded due to poor internal consistency (α≤.184). Interrater reliability values for segment-specific POEs and within-task POEs yielded fair to almost perfect agreement (κ = 0.429-0.875) and almost perfect agreement for total POE score (intraclass correlation coefficient = 0.842), without systematic differences between raters. The smallest detectable changes were 0.7 and 5 points for groups and individuals, respectively. Conclusion The final test battery (single-leg mini-squat, stair descent, forward lunge, single-leg hop for distance) of 4 POEs (foot pronation, medial knee-to-foot position, hip joint POEs, and trunk segment POEs) demonstrated good measurement properties in people with ACL injury. J Orthop Sports Phys Ther 2017;47(11):863-873. doi:10.2519/jospt.2017.7270.
横断面研究。背景：在功能任务期间对姿势定向进行视觉评分可能是跟踪前交叉韧带（ACL）损伤后康复进展的一种有价值的工具。目前缺乏一个有效的测试组合来将姿势定向作为一个单独的指标进行评估。目的：评估一个测试组合用于评估ACL损伤患者姿势定向的测量特性。方法：通过专家焦点小组讨论评估功能任务的内容效度。51例ACL损伤患者（45%为女性）完成了9项难度各异的功能任务。对特定节段姿势定向误差（POE）、任务内POE和总POE评分的可解释性、内部一致性、评分者间信度和测量误差进行评估。姿势定向误差在视频上按顺序量表评分，从0（无POE）到3（严重POE）。结果：焦点小组讨论中排除了上楼梯、深蹲和交叉跳远距离任务。由于地板效应，一些任务中的姿势定向误差被排除。由于内部一致性差（α≤0.184），排除了迷你深蹲和单腿跳任务。特定节段POE和任务内POE的评分者间信度值显示出中等至几乎完美的一致性（κ = 0.429 - 0.875），总POE评分显示出几乎完美的一致性（组内相关系数 = 0.842），评分者之间无系统差异。组和个体的最小可检测变化分别为0.7分和5分。结论：最终的测试组合（单腿迷你深蹲、下楼梯、前弓步、单腿跳远距离）所包含的4种POE（足内翻、膝关节内侧到足部位置、髋关节POE和躯干节段POE）在ACL损伤患者中显示出良好的测量特性。《运动物理治疗杂志》2017年；47(11):863 - 873。doi:10.2519/jospt.2017.7270。
