Logo image
Back
The Effects of Movement Pattern Modification on Lower Extremity Kinematics and Pain in Women With Patellofemoral Pain
Journal article   Open access   Peer reviewed

The Effects of Movement Pattern Modification on Lower Extremity Kinematics and Pain in Women With Patellofemoral Pain

Gretchen B. Salsich, Valentina Graci and Dwayne E. Maxam
The journal of orthopaedic and sports physical therapy, v 42(12), pp 1017-1024
01 Dec 2012
DOI: https://doi.org/10.2519/jospt.2012.4231
PMID: 22960572
url
https://europepmc.org/articles/pmc4383765View
Accepted (AM)Open Access (License Unspecified),  Open

Abstract

Life Sciences & Biomedicine Orthopedics Rehabilitation Science & Technology Sport Sciences
STUDY DESIGN: Controlled laboratory study. OBJECTIVES: To compare hip and knee kinematics and pain during a single-limb squat between 3 movement conditions (usual, exaggerated dynamic knee valgus, corrected dynamic knee valgus) in women with patellofemoral pain. BACKGROUND: Altered kinematics (increased hip adduction, hip medial rotation, knee abduction, and knee lateral rotation, collectively termed dynamic knee valgus) have been proposed to contribute to patellofemoral pain; however, cross-sectional study designs prevent interpreting a causal link between kinematics and pain. METHODS: The study sample included 20 women with patellofemoral pain, who demonstrated observable dynamic knee valgus. Participants performed single-limb squats under usual, exaggerated, and corrected movement conditions. Pain during each condition was assessed using a 0-to- 100-mm visual analog scale. Hip and knee frontal and transverse plane angles at peak knee flexion and pain levels were compared using repeated-measures 1-way analyses of variance. Pearson correlation coefficients were used to determine within-condition associations between kinematic variables and pain. RESULTS: In the exaggerated compared to the usual condition, increases were detected in hip medial rotation (mean +/- SD difference, 5.8 degrees +/- 3.2 degrees; P<.001), knee lateral rotation (5.5 degrees +/- 4.9 degrees, P<.001), and pain (8.5 +/- 10.8 mm, P=.007). In the corrected compared to the usual condition, decreases were detected in hip adduction (mean +/- SD difference, 3.5 degrees +/- 3.7 degrees; P=.001) and knee lateral rotation (1.6 degrees +/- 2.8 degrees, P=.06); however, average pain was not decreased (1.2 +/- 14.8 mm, P=1.0). Pain was correlated with knee lateral rotation in the usual (r=-0.47, P=.04) and exaggerated (r=-0.49, P=.03) conditions. In the corrected condition, pain was correlated with hip medial rotation (r=0.44, P=.05) and knee adduction (r=0.52, P=.02). CONCLUSION: Avoiding dynamic knee valgus may be an important component of rehabilitation programs in women with patellofemoral pain, as this movement pattern is associated with increased pain. J Ort hop Sports Phys Ther 2012;42(12):1017-1024, Epub 5 September 2012. doi:10.2519/jospt.2012.4231

Metrics

13 Record Views
53 citations in Web of Science
58 citations in Scopus

Details

InCites Highlights

Data related to this publication, from InCites Benchmarking & Analytics tool:

Collaboration types
Domestic collaboration
Web of Science research areas
Orthopedics
Rehabilitation
Sport Sciences
Logo image