OpenSim Moco is a software package for solving common problems in simulation biomechanics including tracking simulations, predictive simulations, muscle-redundancy problems, and more. Moco brings state-of-the-art direct collocation optimal control methods to the wider biomechanics community without requiring numerical expertise to solve complex problems. Moco leverages OpenSim’s existing modeling capabilities to allow you to seamlessly make the transition from model building to simulation a seamless process in your research.
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- Download the OpenSim 4.3 beta software from SimTK.
- Go to the "Download Latest Releases" dropdown menu.
- Choose the option labeled "OpenSim Release Betas" that matches your platform ending in win64.exe (Windows) or mac.pkg (macOS).
- Install OpenSim to a location of your choice; perhaps C:\OpenSim 4.3 (on Windows).
- If you use Windows, edit your PATH environment variable to include OpenSim’s bin directory (e.g., C:\OpenSim 4.3\bin). See here for instructions. Make sure to remove any previous OpenSim installations from your PATH.
- Run the OpenSim application to open the GUI. If the instructions below do not work, go the OpenSim executable in the bin folder and launch it from there.
- Windows: open the Start menu and click OpenSim 4.3
- macOS: go to Applications and click OpenSim 4.3
- A prompt will appear to install the OpenSim resources to a location of your choice; perhaps C:\Users\<PROFILE_NAME_HERE>\Documents\OpenSim\4.3 (on Windows; replace <PROFILE_NAME_HERE> with your Windows profile name). These resources include the workshop example files. We will refer to this directory as <RESOURCES_DIR> in the remaining instructions below.
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Visit the Moco website here.
Moco publication
Dembia CL, Bianco NA, Falisse A, Hicks JL, Delp SL (2020) OpenSim Moco: Musculoskeletal optimal control. PLoS Comput Biol 16(12): e1008493. https://doi.org/10.1371/journal.pcbi.1008493
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