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Analysis Of A Kinetic Multi-Segment Foot Model. Part I: Model Repeatability And Kinematic Validity, Dustin A. Bruening, Kevin M. Cooney, Frank L. Buczek
Analysis Of A Kinetic Multi-Segment Foot Model. Part I: Model Repeatability And Kinematic Validity, Dustin A. Bruening, Kevin M. Cooney, Frank L. Buczek
Faculty Publications
Kinematic multi-segment foot models are still evolving, but have seen increased use in clinical and research settings. The addition of kinetics may increase knowledge of foot and ankle function as well as influence multi-segment foot model evolution; however, previous kinetic models are too complex for clinical use. In this study we present a three-segment kinetic foot model and thorough evaluation of model performance during normal gait. In this first of two companion papers, model reference frames and joint centers are analyzed for repeatability, joint translations are measured, segment rigidity characterized, and sample joint angles presented. Within-tester and between-tester repeatability were …
Analysis Of A Kinetic Multi-Segment Foot Model. Part Ii: Kinetics And Clinical Implications, Dustin A. Bruening, Kevin M. Cooney, Frank L. Buczek
Analysis Of A Kinetic Multi-Segment Foot Model. Part Ii: Kinetics And Clinical Implications, Dustin A. Bruening, Kevin M. Cooney, Frank L. Buczek
Faculty Publications
Kinematic multi-segment foot models have seen increased use in clinical and research settings, but the addition of kinetics has been limited and hampered by measurement limitations and modeling assumptions. In this second of two companion papers, we complete the presentation and analysis of a three segment kinetic foot model by incorporating kinetic parameters and calculating joint moments and powers. The model was tested on 17 pediatric subjects (ages 7–18 years) during normal gait. Ground reaction forces were measured using two adjacent force platforms, requiring targeted walking and the creation of two sub-models to analyze ankle, midtarsal, and 1st metatarsophalangeal joints. …
Measured And Estimated Ground Reaction Forces For Multi-Segment Foot Models, Dustin A. Bruening, Kevin M. Cooney, Frank L. Buczek
Measured And Estimated Ground Reaction Forces For Multi-Segment Foot Models, Dustin A. Bruening, Kevin M. Cooney, Frank L. Buczek
Faculty Publications
Accurate measurement of ground reaction forces under discrete areas of the foot is important in the development of more advanced foot models, which can improve our understanding of foot and ankle function. To overcome current equipment limitations, a few investigators have proposed combining a pressure mat with a single force platform and using a proportionality assumption to estimate subarea shear forces and free moments. In this study, two adjacent force platforms were used to evaluate the accuracy of the proportionality assumption on a three segment foot model during normal gait. Seventeen right feet were tested using a targeted walking approach, …