inertia relief

I hunger for someone’s help.:frowning:
I emplyed GaitFullBody model and exported muscle forces calculated in AnyBody and applied as boundary conditions to femur generated for Abaqus. I am confused about the function of “inertia relief”.

How can I utilize it in Abaqus? I submitted the job and I found the femur was out of the shape. What kind of mistakes I have make?
I will preciate if some can help me. Thanks!!!:slight_smile: