Background:Hip-related pain (HRP) is described as a movement-related disorder. However, little attention is given to the way people with HRP move, especially in populations still participating in sport. Thus, limiting our understanding of movementbased impairments in HRP and their potential relationships with pain/symptoms.

Research Question: (1) What are the differences in absolute and relative amounts of positive and negative lower-limb joint work during walking and the single-leg drop jump (SLDJ) in football players with and without HRP? (2) What are the relationships between lower-limb joint work and HRP burden?

Methods:88 football players with HRP and 30 control football players were recruited. Positive and negative work done by the hip, knee, and ankle (and each joint’s relative contribution to total work done) were calculated. The effect of sex on the relationship between HRP and work done, as well as the association between work done and International Hip Outcome Tool (iHOT33) scores, were assessed using linear and beta regressions models.

Results:Walking: No joint work variables were significantly different between groups, nor were any relationships with iHOT33 scores evident. SLDJ: The knee’s relative contribution to total lower-limb negative work done was 37.7 % and 42.4 % for women with and without HRP, respectively (P = 0.04). The iHOT33 was significantly associated with positive (P = 0.03 to <0.01) and negative (P = 0.02 to <0.01) work done by the hip as well as negative work done by the ankle (P = 0.03 to 0.01), independent of sex.

Significance:Only one significant between-group comparison was revealed, involving the knee in female football players. In addition, football players with a greater selfreported burden of HRP tended to display lower hip joint work during the SLDJ. Rehabilitation programs could be targeted to address these impairments and normalize work done during high impact tasks in the management of HRP.

背景：髋关节相关性疼痛（HRP）被描述为运动相关性疾病。但是，对于HRP人群的活动方式几乎没有给予任何关注，尤其是在仍参加体育运动的人群中。因此，限制了我们对基于运动的HRP损伤及其与疼痛/症状的潜在关系的理解。

研究问题：（1）有和没有HRP的足球运动员在步行和单腿下降跳（SLDJ）期间正负负下肢关节运动的绝对量和相对量有何区别？（2）下肢联合工作与HRP负担之间有什么关系？

方法：招募88名HRP足球运动员和30名对照足球运动员。计算臀部，膝盖和脚踝所做的正面和负面工作（以及每个关节对完成的总工作的相对贡献）。使用线性和Beta回归模型评估了性别对HRP与完成的工作之间的关系以及完成的工作与国际髋关节成果工具（iHOT33）得分之间的关​​系的影响。

结果：行走：各组之间的联合工作变量均无显着差异，与iHOT33评分之间也无明显关系。SLDJ：有和没有HRP的女性，膝盖对完成的下肢负性工作的相对贡献分别为37.7％和42.4％（P = 0.04）。iHOT33与髋部的正向（P = 0.03至<0.01）和负向（P = 0.02至<0.01）和负向（P = 0.03至0.01）显着相关（P = 0.03至0.01），与性别无关。

意义：仅揭示了一组重要的组间比较，涉及女足球运动员的膝盖。另外，自我报告的HRP负担较大的足球运动员在SLDJ期间往往表现出较低的髋关节工作。康复计划的目标可能是解决这些障碍，并使在HRP管理中具有高影响力的任务期间完成的工作正常化。