IAA with a passive Spring

[Pia Stefanek]

Hi,

I have performed IAA with the model 'Gait 2354', where I implemented a path spring (working with 2.500N/m) on the position if rectus femoris. Further I weakened the rectus femoris muscle to 10% activation by reducing the controls. When I look as the results of IAA, I cannot find the results for the spring. Is there a way to plot the IAA results for the spring?
I recognized that nearly all of the muscles contribute more to the accelerations (COM, femur, hip_flexion, knee_flexion). Especially the reserves contribute much more than without the spring. Is the reason that they have to compensate the higher values of the other muscles?
The plot describes the contribution to hip flexion by the hip flexion reserves with and without the spring.

Thank you in advance.
Pia