Assess the efficacy of an 8-week virtual, physiotherapist (PT)-guided knee health program (Stop OsteoARthritis (SOAR)) to improve knee extensor strength in individuals at risk of post-traumatic knee osteoarthritis (PTOA). In this superiority, randomized delayed-control trial, persons aged 16–35 years, 1–4 years after a self-reported knee joint injury were randomly assigned (1:1) to receive the SOAR program immediately (experimental group) or after a 9-week delay (control group). SOAR includes 1) one-time Knee Camp (virtual PT-guided group education, knee assessment, 1:1 exercise and physical activity (PA) goal-setting); 2) Weekly personalized home-based exercise and PA program with tracking; 3) Weekly 1:1 PT counseling (virtual). The primary outcome was a change in isokinetic knee extensor strength (baseline to 9-weeks). Additional outcomes included change in self-reported knee-related quality-of-life (QOL), self-efficacy, self-management and kinesiophobia, and PA (accelerometer) at 9 and 18-weeks. Linear regression models estimated the effect of the 8-week intervention at the primary endpoint (9-week). 49 of 54 randomized participants completed the study (91%). Participants were a mean ± standard deviation age of 27 ± 5.0 years, and 2.4 ± 0.9 years post-injury. No mean between group differences for the primary (0.05; 95% confidence interval (CI): −0.10, 0.19) or other outcomes were seen at 9 weeks except for greater improvements in perceived self-management (Partner in Health Scale; 11.3/96, 95%CI: 5.5, 17.1) and kinesiophobia (Tampa Scale of Kinesiophobia; −4.4/33, 95%CI: −7.0, −1.8). For active persons with elevated risk of PTOA, an 8-week SOAR program did not change knee-related strength, QOL, self-efficacy, or PA, on average, but may benefit the ability to self-manage knee health and kinesiophobia.

中文翻译：

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评估“停止骨关节炎”(SOAR) 计划的效果：一项针对早发性创伤后膝骨关节炎风险较高人群的随机延迟对照试验

评估为期 8 周的虚拟物理治疗师 (PT) 指导的膝关节健康计划（停止骨关节炎 (SOAR)）对于改善有创伤后膝骨关节炎 (PTOA) 风险的个体的膝关节伸肌力量的效果。在这项优越性随机延迟对照试验中，年龄为 16-35 岁、自我报告膝关节损伤后 1-4 年的人被随机分配 (1:1) 立即接受 SOAR 计划（实验组）或在接受 SOAR 计划后立即接受 SOAR 计划。延迟 9 周（对照组）。 SOAR 包括 1) 一次性膝关节训练营（虚拟 PT 指导的团体教育、膝关节评估、1:1 锻炼和身体活动 (PA) 目标设定）； 2) 每周个性化的家庭锻炼和 PA 计划，并进行跟踪； 3) 每周 1:1 PT 咨询（虚拟）。主要结果是等速伸膝肌力的变化（基线至 9 周）。其他结果包括自我报告的膝关节相关生活质量 (QOL)、自我效能、自我管理和运动恐惧症以及第 9 周和第 18 周时 PA（加速度计）的变化。线性回归模型估计了 8 周干预对主要终点（9 周）的影响。 54 名随机参与者中有 49 名完成了研究（91%）。参与者的平均年龄±标准差为27±5.0岁，伤后年龄为2.4±0.9岁。 9周时，除了感知自我管理方面有更大改善（健康量表合作伙伴；11.3/96）外，主要结果（0.05；95%置信区间（CI）：-0.10，0.19）或其他结果的组间均值没有差异，95%CI：5.5，17.1）和运动恐惧症（运动恐惧症坦帕量表；-4.4/33，95%CI：-7.0，-1.8）。对于 PTOA 风险较高的活跃人士，为期 8 周的 SOAR 计划平均而言不会改变膝关节相关力量、生活质量、自我效能或 PA，但可能有益于自我管理膝关节健康和运动恐惧症的能力。