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Lower Extremity Strength and Mechanics During Jumping in Women With Patellofemoral Pain

机译:Pat股股骨疼痛妇女下跳时的下肢力量和力学

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摘要

Context: Lower extremity (LE) weakness might be associated with altered mechanics during weight bearing in subjects with patellofemoral pain syndrome (PFPS). Objective: To analyze LE strength, mechanics, and the association between these variables among women with and without PFPS during a simulated athletic task. Design: Case control. Setting: Motion-analysis laboratory. Subjects: 20 women with PFPS and 20 healthy women. Main Outcome Measures: Peak isometric lateral trunk-flexion, hipabduction, hip external-rotation, knee-flexion, and knee-extension strength, as well as hip- and knee-joint excursions and angular impulses during single-leg jumps. Results: PFPS subjects produced less hip-abduction, hip external-rotation, and trunk lateral- flexion force than the control group. The PFPS group also demonstrated greater hipadduction excursion and hip-abduction impulses. The association between the strength measurements and LE mechanics was low. Conclusions: Women with PFPS demonstrate specific weaknesses and altered LE mechanics. Weakness is not, however, highly correlated with observed differences in mechanics. ABSTRACT FROM AUTHOR
机译:背景:下肢(LE)的无力可能与pain股痛综合征(PFPS)受试者在负重过程中力学改变有关。目的:分析模拟运动任务中有无PFPS的女性的LE强度,力学以及这些变量之间的关联。设计:案例控制。地点:运动分析实验室。受试者:20名PFPS妇女和20名健康妇女。主要观察指标:最大等距侧面躯干屈曲,髋关节外展,髋关节外旋,膝盖屈曲和膝盖伸展力量,以及单腿跳跃过程中的髋关节和膝关节偏移以及角冲动。结果:PFPS受试者产生的髋关节外展,髋关节外旋和躯干侧屈力均低于对照组。 PFPS组还表现出更大的髋关节外展偏移和髋关节外展冲动。强度测量值与LE力学之间的关联性很低。结论:PFPS妇女表现出特定的弱点并改变了LE力学。但是,弱点与观察到的力学差异并不高度相关。作者摘要

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