Extended foot-ankle musculoskeletal models for application in movement analysis

摘要

Multibody simulations of human motion require representative models of the anatomicalstructures. A model that captures the complexity of the foot is still lacking. In the present work,two detailed 3D multibody foot-ankle models generated based on CT scans using a semi-automatictool are described. The proposed models consists of five rigid segments (talus, calcaneus, midfoot,forefoot and toes), connected by five joints (ankle, subtalar, midtarsal, tarsometatarsal andmetatarsophalangeal), one with 15DOF and the other with 8DOF. The calculated kinematics of bothmodels were evaluated using gait trials and compared against literature, both presenting realisticresults. An inverse dynamic analysis was performed for the 8DOF model, again presenting feasibledynamic results.