Modelling / Simulation

Document Type



Investigating the effect of a prosthetics size, shape, and stiffness on sports performance requires a theoretical approach, however this requires a more complex representation of the prosthetic beyond those previously adopted. A chain model was used to investigate the level of complexity (n-segments; n=2,3,4) required to reproduce the kinematics and kinetics of a prosthetic during six different movements performed by a unilateral transtibial amputee athlete. The optimal solution was evaluated using an angle-driven simulation model and close agreement (3% RMS difference) was observed between the simulation and recorded performances suggesting the complexity was sufficient. This approach could be employed within theoretical approaches to investigate the cause and effect of prostheses on sporting movements or to custom fit appropriate prostheses for individual athletes.