Sex-Specific associations between hip muscle strength and foot progression angle |
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| Institution: | 1. Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA, USA;2. Department of Kinesiology, California State University, Fullerton, Fullerton, CA, USA;3. School of Kinesiology, Western University, London, Ontario, Canada;1. Institute of Biomedical Engineering, Department of Electrical and Electronic Engineering, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil;2. Center for Neuroplasticity and Pain (CNAP), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark;3. Department of Clinical and Experimental Sciences, Università degli Studi di Brescia, Brescia, Italy;4. Department of Materials and Production, Aalborg University, Aalborg, Denmark;1. Department of Industrial and Systems Engineering, Rochester Institute of Technology, Rochester, NY 14623, USA;2. Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA 24061, USA;3. Product Operations Department at Samsung, Austin, TX 78754, USA;4. Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA;5. Department of Orthopedic Surgery, Harvard Medical School, Cambridge, MA 02138, USA;6. Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24061, USA;7. Subject Matter Team in the Worldwide Design & Engineering at Amazon, Seattle, WA 98170, USA;1. Programa de Engenharia Biomédica (COPPE), Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil;2. Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK;3. Department of Clinical and Experimental Sciences, Università degli Studi di Brescia, Brescia, Italy;4. Laboratorio di Ingegneria del Sistema Neuromuscolare (LISiN), Politecnico di Torino, Torino, TO, Italy;5. PolitoBIOMed Lab, Politecnico di Torino, Torino, Italy;1. Research Centre on Aging, CIUSSS de l’Estrie - CHUS, Sherbrooke, QC, Canada;2. Department of Mechanical Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada;3. School of Rehabilitation, Université de Sherbrooke, Sherbrooke, QC, Canada;4. Department of Health Sciences, Université du Québec à Chicoutimi, Chicoutimi, QC, Canada;5. Research Centre on Health, CIUSSS du Saguenay-Lac-Saint-Jean, Chicoutimi, QC, Canada;1. Department of Neurobiology, Poznan University of Physical Education, Poland;2. Department of Physiology and Biochemistry, Poznan University of Physical Education, Poland |
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| Abstract: | The foot progression angle (FPA) influences knee loading during gait, but its determinants are unclear. The purpose of this study was to compare FPA between males and females and also examine the association between lower extremity kinematics during gait, hip strength, and the FPA. 25 males and 25 females completed 5 gait trials while FPA and frontal and transverse plane hip and knee angles were calculated from the dominant limb during the foot flat portion of stance. Hip extensor/flexor, abductor/adductor, and internal/external rotator strength were evaluated using maximum voluntary isometric contractions. One-way MANOVAs compared gait and strength outcomes. Stepwise regression assessed the association between FPA, and MVIC and kinematics after accounting for speed in males and females. There was no difference in FPA between sexes (p > 0.05), but females had greater frontal and transverse plane hip angles compared with males (all p < 0.05). Greater hip abduction (p = 0.02) strength was associated with greater FPA, but only in males. In males, greater hip abductor strength may contribute to a more neutral position of the foot during gait, which could help maintain an equal knee loading distribution. Our results suggest that there are sex specific control strategies to achieve a similar FPA during gait. |
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| Keywords: | Dynamometry Gait Biomechanics Kinematics Walking |
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