Lower Extremity Strength and Mechanics During Jumping in Women With Patellofemoral Pain
Author
Willson, John D.; Davis, Irene S.
Abstract
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
Subject
Date
2009
Citation:
APA:
Willson, John D., & Davis, Irene S.. (January 2009).
Lower Extremity Strength and Mechanics During Jumping in Women With Patellofemoral Pain.
Journal Of Sport Rehabilitation,
18(1),
76-
90. Retrieved from
http://hdl.handle.net/10342/4278
MLA:
Willson, John D., and Davis, Irene S..
"Lower Extremity Strength and Mechanics During Jumping in Women With Patellofemoral Pain". Journal Of Sport Rehabilitation.
18:1. (76-90),
January 2009.
September 24, 2023.
http://hdl.handle.net/10342/4278.
Chicago:
Willson, John D. and Davis, Irene S.,
"Lower Extremity Strength and Mechanics During Jumping in Women With Patellofemoral Pain," Journal Of Sport Rehabilitation 18, no.
1 (January 2009),
http://hdl.handle.net/10342/4278 (accessed
September 24, 2023).
AMA:
Willson, John D., Davis, Irene S..
Lower Extremity Strength and Mechanics During Jumping in Women With Patellofemoral Pain. Journal Of Sport Rehabilitation.
January 2009;
18(1):
76-90.
http://hdl.handle.net/10342/4278. Accessed
September 24, 2023.
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