A cycle ergometer mounted on a standard force platform for three-dimensional pedal forces measurement during cycling |
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| Authors: | Mornieux Guillaume Zameziati Karim Mutter Elodie Bonnefoy Régis Belli Alain |
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| Institution: | 1. Biomechanics and Sports Engineering Groups, Biomedical Engineering Department, Amirkabir University of Technology, Tehran, Iran;2. Centre for Sports Engineering Research, Sheffield Hallam University, A217, Collegiate Hall, Collegiate Crescent, Sheffield S10 2BP, UK;3. FiDiPro Programme, University of Jyväskylä, Finland;1. Laboratoire de Dynamique des Interactions Membranaires Normales et Pathologiques UMR 5235, Université Montpellier II and Centre National de la Recherche Scientifique, Montpellier, France;2. Laboratoire Charles Coulomb UMR 5221, Université Montpellier II and Centre National de la Recherche Scientifique, Montpellier, France;3. Institute for Complex Systems and Mathematical Biology, Scottish Universities Physics Alliance, University of Aberdeen, King’s College, Aberdeen, United Kingdom;4. Institute of Medical Sciences, Foresterhill, University of Aberdeen, Aberdeen, United Kingdom;1. East Carolina University, Department of Physical Therapy, 600 Moye Boulevard, Greenville, NC 27834, United States;2. Proaxis Physical Therapy, 304 W Weaver Street, Suite 103, Carrboro, NC 27510, United States;1. Division of Pediatric Endocrinology, Department of Pediatrics, Columbia University Medical Center, New York, New York;2. Department of Medicine, Columbia University Medical Center, New York, New York;3. Department of Surgery, Columbia University Medical Center, New York, New York |
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| Abstract: | This report describes a new method allowing to measure the three-dimensional forces applied on right and left pedals during cycling. This method is based on a cycle ergometer mounted on a force platform. By recording the forces applied on the force platform and applying the fundamental mechanical equations, it was possible to calculate the instantaneous three-dimensional forces applied on pedals. It was validated by static and dynamic tests. The accuracy of the present system was -7.61 N, -3.37 N and -2.81 N, respectively, for the vertical, the horizontal and the lateral direction when applying a mono-directional force and -4.52 N when applying combined forces. In pedaling condition, the orientation and magnitude of the pedal forces were comparable to the literature. Moreover, this method did not modify the mechanical properties of the pedals and offered the possibility for pedal force measurement with materials often accessible in laboratories. Measurements obtained showed that this method has an interesting potential for biomechanical analyses in cycling. |
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