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Relationship between hip and core strength and frontal plane alignment during a single leg squat
Journal article   Peer reviewed

Relationship between hip and core strength and frontal plane alignment during a single leg squat

Laurie Stickler, Margaret Finley and Heather Gulgin
Physical therapy in sport, v 16(1), pp 66-71
Feb 2015
DOI: https://doi.org/10.1016/j.ptsp.2014.05.002
PMID: 25070759
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Mechanics Patellofemoral pain syndrome Single leg squat
The purpose of this study was to examine the relationship between frontal plane kinematics of the single leg squat and strength of the trunk and hip in females. Forty healthy females participated in this study. An isometric “make” test using a dynamometer was used to assess peak force normalized to body weight for hip abduction, hip extension, hip external rotation, and a sidelying plank test. Two-dimensional software was used to analyze the frontal plane projection angle (FPPA) and pelvic angle during a single leg squat to 60°. All 4 strength factors were significantly correlated with the FPPA, ranging from r = 0.396 to r = 0.466. During multiple regression analysis, hip abduction strength was the greatest predictor of the variation in FPPA at r2 = 0.22, p = 0.002. Thus, hip abduction strength accounted for 22% of the variation in the FPPA during the single leg squat. The only strength factor demonstrating a significant correlation with the pelvic angle was hip extension strength (r = 0.550, p < 0.001). Clinicians should consider the role of the hip abductors, hip external rotators, hip extensors and core musculature on the impact on the FPPA during a single squat, with focus on the hip abductors. •Core and hip strength is significantly correlated with knee kinematics in females.•Hip abductor strength was the best predictor of the Frontal Plane Projection Angle.•Clinicians should consider hip strength when assessing single leg squat kinematics.

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15 Record Views
111 citations in Web of Science
110 citations in Scopus

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UN Sustainable Development Goals (SDGs)

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#5 Gender Equality

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