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--- visual3d:documentation:modeling:segments:references [2024/06/14 17:24] – created sgranger
+++ visual3d:documentation:modeling:segments:references [2024/07/17 15:45] (current) – created sgranger
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-|**Language:**|** English**  • [[index.php?title=Muti_Segment_Foot_Models_Kinetics/fr&action=edit&redlink=1|français]] • [[index.php?title=Muti_Segment_Foot_Models_Kinetics/it&action=edit&redlink=1|italiano]] • [[index.php?title=Muti_Segment_Foot_Models_Kinetics/pt&action=edit&redlink=1|português]] • [[index.php?title=Muti_Segment_Foot_Models_Kinetics/es&action=edit&redlink=1|español]] ****|
+====== References ======
-|===== Contents =====\\ \\ \\ \\ * [[#Multi-Segment_Foot_Kinetics|1 Multi-Segment Foot Kinetics]]|
+===== Multi-Segment Foot Kinetics =====
-====== Multi-Segment Foot Kinetics ======
 |**Chang R, Rodrigues PA, Van Emmerik RE, Hamill J.(2014)**   "Multi-segment foot kinematics and ground reaction forces during gait of individuals with plantar fasciitis."                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
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 |Multi-segment foot models are increasingly being used to evaluate intra and inter-segment foot kinematics such as the motion between the hindfoot/tibia (ankle) and the forefoot/hindfoot (midfoot) during walking. However, kinetic analysis have been mainly restricted to one-segment foot models and could be improved by considering a multi-segment approach. Therefore, the aims of this study were to (1) implement a kinetic analysis of the ankle and theoretical midfoot joints using the existing Oxford Foot Model (OFM) through a standard inverse dynamics approach using only marker, force plate and anthropometric data and (2) to compare OFM ankle joint kinetics to those output by the one-segment foot plugin-gait model (PIG). 10 healthy adolescents fitted with both the OFM and PIG markers performed barefoot comfortable speed walking trials over an instrumented walkway. The maximum ankle power generation was significantly reduced by approximately 40% through OFM calculations compared to PIG estimates (p<0.001). This result was not caused by a decrease in OFM computed joint moments, but by a reduction in the angular velocity between the tibia/hindfoot (OFM) compared to the tibia/foot (PIG) (p<0.001). Additionally, analysis revealed considerable midfoot loading. One-segment foot models overestimate ankle power, and may also overestimate the contribution of the triceps surae. A multi-segment approach may help quantify the important contribution of the midfoot ligaments and musculature to power generation. We therefore recommend the use of multi-segment foot models to estimate ankle and midfoot kinetics, especially when surgical decision-making is based on the results of three-dimensional gait analysis.|
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