Knee osteoarthritis (OA) is a leading cause of chronic pain in adults and shows wide interindividual variability, with peripheral and central factors contributing to the pain experience. Periarticular factors, such as muscle quality (eg, echo intensity [EI] and shear wave velocity [SWV]), may contribute to knee OA pain; however, the role of muscle quality in OA symptoms has yet to be fully established.

中文翻译：

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患有症状性膝骨关节炎的成人的肌肉质量与疼痛之间的关系（与肌肉力量无关）：横断面研究的结果

膝骨关节炎 (OA) 是成人慢性疼痛的主要原因，并且表现出广泛的个体差异，外围和中枢因素都会导致疼痛体验。关节周围因素，例如肌肉质量（例如回声强度 [EI] 和剪切波速度 [SWV]），可能会导致膝关节 OA 疼痛；然而，肌肉质量在 OA 症状中的作用尚未完全确定。