Direct Methods for Predicting Movement Biomechanics Based Upon Optimal Control Theory with Implementation in OpenSim

• Published in: Annals of biomedical engineering Vol. 44; no. 8; pp. 2542 - 2557
• Main Authors: Porsa, Sina, Lin, Yi-Chung, Pandy, Marcus G.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.08.2016; Springer Nature B.V
• Subjects: Activation; Biochemistry; Biological and Medical Physics; Biomechanics; Biomedical and Life Sciences; Biomedical Engineering and Bioengineering; Biomedicine; Biophysics; Classical Mechanics; Collocation; Computation; Humans; Joints - physiology; Jumping; Mathematical models; Models, Biological; Muscle, Skeletal - physiology; Muscles; Optimal control; Range of Motion, Articular; Shooting; Walking - psychology; Direct shooting; Musculoskeletal model; Motion tracking; Direct collocation; Predictive simulation; Trajectory optimization

The aim of this study was to compare the computational performances of two direct methods for solving large-scale, nonlinear, optimal control problems in human movement. Direct shooting and direct collocation were implemented on an 8-segment, 48-muscle model of the body (24 muscles on each side) to...