Image not available
Modified Full Body Model
Built upon the OpenSim 3.X “Full Body Model for use in Dynamic Simulations of Human Gait” (Rajagopal, et al.), this modified multi-joint (MJ) model has been adapted for use with a variety of resistive and aerobic exercise motions (e.g., squats, rowing, cycling, etc.). The upper body was separated into 5 segments (abdomen, thorax, neck-head, right clavicle, and left clavicle). Each joint is 3DOF, but certain coordinates have been locked in practice*. Certain joint coordinate limits were increased. The Plug-in Gait marker set was added. As kinematic artifacts were observed to occur with this model in more complex upper limb motions, subsequent adjustments to coordinate axes, coordinate limits, and recommended marker set have been made and will be released as a latest version soon. *Note: It is recommended to lock thorax_extension for model scaling and unlock for IK.
Jun 13, 2024

Initial ReleaseNotes  View License

Download Links

Jun 13, 2024
1 MB
Combines geometry from OpenSim installation and Full Body Model (Rajagopal et al. 2015), including customization for rigid torso separated segment geometry.

Jun 13, 2024
788 KB
Source code
Modified Full Body Model


Huffman, R.K., Thompson, W. K., Gallo, C. A., and L. J. Quiocho, “Improvement of Scaling and Inverse Kinematic Results with Additional Upper Body Joints Added to OpenSim Rajagopal Model,” NASA Human Research Program Investigator’s Workshop, 2019. (2019)

Lostroscio, K., Quiocho, L., Bell, C., Frenkel, D., Matari, F., and Nilsson, L., "The Digital Astronaut Simulation," AHFE International Conference on Human Factors in Design, Engineering, and Computing for All, 2023. 10.54941/ahfe1004457. (2023)