Deficits in movement patterns during cutting while running might place soccer players at risk of injury. The objective was to compare joint angles and intersegment coordination between sexes and ages during an unanticipated side-step cutting task in soccer players. This cross-sectional study recruited 11 male (four adolescents and seven adults) and 10 female (six adolescents and four adults) soccer players. Three-dimensional motion capture was used to measure lower-extremity joint and segment angles as participants performed an unanticipated cutting task. Hierarchical linear models examined relationships between joint angle characteristics with age and sex. Continuous relative phase was used to quantify intersegment coordination amplitude and variability. These values were compared between age and sex groups using analysis of covariance. Adult males had greater hip flexion angle excursions than adolescent males, while adult females had smaller excursions than adolescent females (p = .011). Females had smaller changes in hip flexion angles (p = .045), greater hip adduction angles (p = .043), and greater ankle eversion angles (p = .009) than males. Adolescents had greater hip internal rotation (p = .044) and knee flexion (p = .033) angles than adults, but smaller changes in knee flexion angles at precontact compared with stance/foot off (p < .001). For intersegment coordination, females were more out-of-phase than males in the foot/shank segment in the sagittal plane. There were no differences in intersegment coordination variability between groups. Differences in joint motion during an unanticipated cutting task were present between age groups and sexes. Injury prevention programs or training programs may be able target specific deficits to lower injury risk and improve performance.

中文翻译：

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年龄和性别与足球运动员意外切入时关节角度和协调的关系。

跑步时切入过程中运动模式的缺陷可能会使足球运动员面临受伤的风险。目的是比较足球运动员在执行意外的侧步切入任务时，不同性别和年龄之间的关节角度和节段间协调性。这项横断面研究招募了 11 名男性（四名青少年和七名成人）和 10 名女性（六名青少年和四名成人）足球运动员。当参与者执行意料之外的切割任务时，使用三维运动捕捉来测量下肢关节和节段角度。分层线性模型检查了关节角度特征与年龄和性别之间的关系。连续相对相位用于量化段间协调幅度和变异性。使用协方差分析对年龄组和性别组之间的这些值进行比较。成年男性的髋部屈曲角度偏移量比青春期男性更大，而成年女性的髋部屈曲角度偏移量比青春期女性小 (p = .011)。与男性相比，女性的髋部屈曲角度变化较小 (p = .045)，髋部内收角度变化较大 (p = .043)，踝关节外翻角度变化较大 (p = .009)。与成人相比，青少年的髋部内旋角度 (p = .044) 和膝关节屈曲角度 (p = .033) 更大，但与站立/脚离地时相比，预接触时膝关节屈曲角度的变化较小 (p < .001)。对于节段间协调，在矢状面的足/小腿节段，女性比男性更加不同步。各组之间的节段间协调变异性没有差异。在意外切割任务期间，不同年龄组和性别之间的关节运动存在差异。伤害预防计划或培训计划可能能够针对特定的缺陷来降低伤害风险并提高表现。