Inverse Dynamics

Provide easy-to-use, extensible software for modeling, simulating, controlling, and analyzing the neuromusculoskeletal system.
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Gnapika Talluri
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Joined: Sat Sep 28, 2019 10:04 am

Inverse Dynamics

Post by Gnapika Talluri » Tue Dec 03, 2019 12:48 pm

Hi everyone,

I am performing the Inverse Dynamics using Rajagopal Full-Body Musculoskeletal Model. We collected the ground reaction force (GRF) on 5 force plates as subject was walking. While looking at the example files for *.mot for GRF, it seems that both Rajagopal and Gait2392 examples have expressed the GRF data for left and right legs instead of multiple force plates. I am just wondering whether I can run the inverse dynamics by using our existing motion files (GRFs are expressed in multiple force plates) or I need to express these multiple force plates data as left and right legs? If I need to do that, what is the most convenient way to convert those force data from multiple plates to left and right legs?



Thanks in advance!



Gnapika
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Michał Wołek
Posts: 32
Joined: Tue Mar 12, 2019 3:59 am

Re: Inverse Dynamics

Post by Michał Wołek » Wed Dec 04, 2019 4:31 am

if you have all the forceplate data in a single file (that is, Fx, Fy, Fz, Px, Py, Pz, Mx, My, Mz values for all force plates for the whole duration of simulation), you just have to assign each force plate data to a correctfoot (in gait 2932 - to calcn bodies)
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