IAA results - Dominance of gravity and residuals

[Rodrigo Mateus]

Hello,

I was working on an induced accelerations analysis and the results from one of the subjects was strange, since the gravity contribution+residuals contributions seem to overpower all the muscles contributions and make up for the total acceleration of the center of mass along the vertical axis, Y. I performed IK, RRA and CMC, and the results seem correct up until the IAA.

IAA.png (35.86 KiB) Viewed 190 times

Below is how the setup of the IAA was done. A RollingOnSurface constraint was used.

IAA.png (152.66 KiB) Viewed 190 times

Has anyone come across with this situation? How can I correct this?

Thank you in advance.

Rodrigo Mateus