Department of Physiotherapy, Singapore General Hospital, Singapore.
Department of Health and Social Sciences, Singapore Institute of Technology, Singapore.
Phys Ther Sport. 2021 Nov;52:280-286. doi: 10.1016/j.ptsp.2021.10.007. Epub 2021 Oct 20.
Regular quadriceps strength assessment is important following anterior cruciate ligament reconstruction (ACLR). The one-leg sit-to-stand (OLSTS) test potentially overcomes the barrier of accessibility to specialised testing equipment. However, feasibility and validity testing of OLSTS is lacking in the ACLR population. This study aims to examine the feasibility, correlates, and predictive validity of OLSTS with self-reported running and jumping difficulty in individuals post-ACLR.
Retrospective longitudinal study.
20 patients with primary unilateral ACLR were tested at 6-months and 1-year post-ACLR. Feasibility was assessed by the number of patients who had safely performed OLSTS at both timepoints. Cross-sectional gender-adjusted Spearman correlations of OLSTS with quadriceps strength, physical impairments, and psychological variables were measured at 6-months. Predictive validity was assessed via ordinal regression, quantifying the associations of OLSTS with self-reported running and jumping difficulty across time-points.
All patients understood the instructions to and were able to self-administer the OLSTS test safely. OLSTS is a valid measure of quadriceps strength (gender-adjusted Spearman's ρ = 0.53, P = 0.02). Knee pain (ρ = 0.44, P = 0.046) and readiness to return-to-sport (ρ = 0.55, P = 0.02) were additional correlates. Greater OLSTS performance was associated with greater odds of better self-reported running and jumping function (interquartile-range ORs, 12.0 [95% CI: 3.6-45] and 18.5 [95% CI: 5-67], respectively).
OLSTS is a feasible and valid test of quadriceps strength, demonstrating predictive validity with self-reported running and jumping post-ACLR. OLSTS potentially allows independent tracking of ACLR rehabilitation progress at home - an increasingly urgent necessity in the face of a global pandemic.
在进行前交叉韧带重建 (ACLR) 后，定期评估股四头肌力量非常重要。单腿坐-站 (OLSTS) 测试可能克服了专门测试设备使用不便的障碍。然而，在 ACLR 人群中，OLSTS 的可行性和有效性测试仍存在不足。本研究旨在探讨 OLSTS 在 ACLR 后个体中与自我报告的跑步和跳跃困难的相关性、可行性和预测效度。
回顾性纵向研究。
20 名单侧 ACLR 患者在术后 6 个月和 1 年进行测试。通过在两个时间点都安全完成 OLSTS 的患者数量来评估可行性。在 6 个月时，进行横截面性别调整的 Spearman 相关分析，以评估 OLSTS 与股四头肌力量、身体功能障碍和心理变量之间的相关性。通过有序回归评估预测效度，以量化 OLSTS 在不同时间点与自我报告的跑步和跳跃困难之间的关联。
所有患者都能理解 OLSTS 的测试说明并能安全地自我进行测试。OLSTS 是一种有效的股四头肌力量测量方法（性别调整的 Spearman ρ=0.53，P=0.02）。膝关节疼痛（ρ=0.44，P=0.046）和准备重返运动（ρ=0.55，P=0.02）是其他相关因素。OLSTS 表现更好与自我报告的跑步和跳跃功能更好的几率更大相关（四分位距 ORs，12.0 [95%CI：3.6-45] 和 18.5 [95%CI：5-67]）。
OLSTS 是一种可行且有效的股四头肌力量测试方法，在 ACLR 后自我报告的跑步和跳跃功能方面具有预测效度。OLSTS 可能允许在家中独立跟踪 ACLR 康复进展——在全球大流行的背景下，这是一项越来越紧迫的需求。
