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J Orthop Sports Phys Ther. 2003 Nov;33(11):671-6.

Hip strength in females with and without patellofemoral pain.

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  • 1Kentucky Sports Medicine Clinic, Lexington, KY, USA.

Abstract

STUDY DESIGN:

Cross-sectional.

OBJECTIVES:

To determine if females with anterior knee pain are more likely to demonstrate hip abduction or external rotation weakness than a similar, asymptomatic, age-matched control group.

BACKGROUND:

Diminished hip strength has been implicated as being contributory to lower-extremity malalignment and patellofemoral pain. The identification of reliable and consistent patterns of weakness in this population may assist health care professionals establish a more effective treatment plan.

METHODS AND MEASURES:

Hip abduction and external rotation isometric strength measurements were recorded for the injured side of 15 female subjects with patellofemoral joint pain (mean +/- SD age, 15.7 +/- 2.7 years; age range, 12-21 years). These were compared with strength measurements from the corresponding hip of 15 age-matched female control subjects (mean +/- SD age, 15.7 +/- 2.7 years; age range, 12-21 years). All strength measurements were made using hand-held dynamometers.

RESULTS:

Subjects with patellofemoral pain demonstrated 26% less hip abduction strength (P<.001) and 36% less hip external rotation strength (P<.001) than similar age-matched controls.

CONCLUSIONS:

The results indicate that young women with patellofemoral pain are more likely to demonstrate weakness in hip abduction as well as external rotation than age-matched women who are not symptomatic.

PMID:
14669962
[PubMed - indexed for MEDLINE]
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