Foot modeling affects ankle sagittal plane kinematics during jump-landing |
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| Institution: | 1. Faculty of Human Kinetics, University of Lisbon, Portugal;2. George Mason University, Sports Medicine Assessment, Research & Testing (SMART) Laboratory, Manassas, VA, USA;3. CIPER, Faculty of Human Kinetics, University of Lisbon, Portugal;4. Universidade Europeia, Lisbon, Portugal;1. Department of Family Medicine, University of Colorado School of Medicine, Denver, CO (Dr Khodaee);2. Advanced Clinical Psychopharmacology, LLC, Broomfield, CO (Dr Torres);1. Internal Medicine Department, Complejo Hospitalario y Universitario de Albacete, Castilla-La Mancha University, Albacete, Spain;2. Neurology Department, Hospital Josep Trueta de Girona, IDIBGI, Girona, Spain;3. Nephrology Department, Hospital del Mar, Barcelona, Spain;4. Nephrology Department, Hospital General Universitario de Elda, Alicante, Spain;5. Cardiology Department, Hospital General Universitario de Alicante, Alicante, Spain;6. Nephrology Department, Hospital Clínico San Carlos, Madrid, Spain;7. Neurology Department, Hospital La Mancha Centro, Alcázar de San Juan, Ciudad Real, Spain;8. Nephrology Department, Fundación Puigvert, RedInRen, IIB Sant Pau, University Autónoma, Barcelona, Spain;1. University of Tennessee Health Science Center, 930 Madison Avenue, Suite 604, Memphis, TN, 38163, USA;2. Ohio State University, 516 Atwell Hall, 453 W, 10th Avenue, Columbus, OH, 43210, USA;3. Rocky Mountain University of Health Professions, 122 East 1700 South, Bldg. 3, Provo, UT 84606, USA;4. University of Saskatchewan, 104 Clinic Place, Health Sciences E-Wing, Saskatoon, SK, S7N 2Z4, Canada |
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| Abstract: | The foot-ankle complex is a key-element to mitigate impact forces during jump-landing activities. Biomechanical studies commonly model the foot as a single-segment, which can provide different ankle kinematics compared to a multi-segmented model. Also, it can neglect intersegmental kinematics of the foot-ankle joints, such as the hindfoot-tibia, forefoot-hindfoot, and hallux-forefoot joints, that are used during jump-landing activities. The purpose of this short communication was to compare ankle kinematics between a three- and single-segmented foot models, during forward and lateral single-leg jump-landings. Marker trajectories and synchronized ground reaction forces of 30 participants were collected using motion capture and a force plate, during multidirectional single-leg jump-landings. Ankle kinematics were computed using a three- (hindfoot-tibia) and a single-segmented (ankle) foot models, at initial contact (IC), peak vertical ground reaction force (PvGRF) and peak knee flexion (PKF). Repeated measures ANOVAs were conducted (p < 0.05). The findings of this study showed that during lateral and forward jump-landing directions, the three-segmented foot model exhibited lower hindfoot-tibia dorsiflexion angles (PvGRF and PKF, p < 0.001) and excursions (sagittal: p < 0.001; frontal: p < 0.05) during the weightbearing acceptance phase than the single-segmented model. Overall, the two foot models provided distinctive sagittal ankle kinematics, with lower magnitudes in the hindfoot-tibia of the three-segmented foot. Furthermore, the three-segmented foot model may provide additional and representative kinematic data of the ankle and foot joints, to better comprehend its function, particularly in populations whose foot-ankle complex plays an important role (e.g., dancers). |
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| Keywords: | Multi-segmented foot Single-segmented foot Dancers Single-leg landing Biomechanics |
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