Relationships of hip abductor strength,neuromuscular control,and hip width to femoral length ratio with peak hip adduction angle in healthy female runners |
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| Authors: | Richard A Brindle D David Ebaugh John D Willson Margaret A Finley Patricia A Shewokis Clare E Milner |
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| Institution: | 1. ReHAB Group, Department of Physical Therapy and Rehabilitation Sciences, Drexel University , Philadelphia, PA, USA richard_brindle@baylor.edu https://orcid.org/0000-0002-5667-4384;3. Department of Physical Therapy, University of Delaware , Newark, DE, USA;4. Department of Physical Therapy, East Carolina University , Greenville, NC, USA https://orcid.org/0000-0001-5082-8330;5. ReHAB Group, Department of Physical Therapy and Rehabilitation Sciences, Drexel University , Philadelphia, PA, USA;6. Nutrition Sciences Department, College of Nursing and Health Professions, Drexel University , Philadelphia, PA, USA;7. School of Biomedical Engineering, Science and Health Systems, Drexel University , Philadelphia, PA, USA |
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| Abstract: | ABSTRACT A large peak hip adduction angle during running is a risk factor for several overuse injuries in women. The purpose of this study was to determine if female runners with a large peak hip adduction angle have differences in eccentric hip abductor muscle strength, hip neuromuscular control, and/or hip width to femoral length ratio (HW:FL) compared to those with a small angle. Hip adduction during running, hip strength, hip control, and HW:FL were measured in sixty healthy female runners (1.66 ± 0.06 m; 63.2 ± 8.3 kg; 27 ± 6 years). Data from twenty runners with the largest and twenty with the smallest peak hip adduction angles were analysed. Between-group differences in hip strength, control, and HW:FL were determined using independent t-tests (p < 0.05). Variables that were significantly different between groups were entered into a regression model. Runners in both groups had similar hip strength (p = 0.90) and control (p = 0.65). HW:FL was greater in the large peak angle group (p = 0.04), but only explained a small amount of peak hip adduction angle variance for all sixty runners (R2 = 0.05). Alarge peak hip adduction angle in some healthy female runners may simply be instinctive as there were no deficiencies in the strength or neuromuscular control constructs assessed. |
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| Keywords: | Running kinematics eccentric Fitts’ law pelvis width |
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https://orcid.org/0000-0002-5667-4384;3. Department of Physical Therapy, University of Delaware , Newark, DE, USA;4. Department of Physical Therapy, East Carolina University , Greenville, NC, USA