In contrast to your suggestions, iliacus and psoas force were also doubled just after heel contact. Vasti force didn't change markebly. Thus , besides increased knee co-contraction, increased hip cocontraction occured. This doesn't seem a more optimal solution to me.

Hi, I compared the muscle activities that result from CMC for the two versions and I found increased (almost by factor 3) rectus femoris force activity using version 2.4.0 during loading response which indicates increased co-contraction in the knee. I am currious how this can be explained. Looking f...

Hi Ayman,

Unforunately, setting 'use_verbode_printing' to 'true' wasn't helpful. I will run RRA using the GUI.

The 'preview motion data' was what I was looking for to visualize the ground reaction force in sync with the motion. So, thanks for the advise.

Lydia

Hi Ayman, Thanks for your quick reply. 1. Below is the text I am missing in the written output file and not in the message window 2. Having one motion file including both the joint kinematics and ground reaction forces enables to show the moving model simultaneously with the applied ground reaction ...

Hi team, First of all, the new version is doing great. Tracking results from CMC are remarkebly improved using version 2.4.0 compared to 2.2.1! Second, I encountered some missin ginformation in written output files using the commend line and hope you'll help me out of this: 1. if I run RRA tool usin...

<t>Hi,<br/> <br/> I was trying the CMC tool for squatting and sit to stand transfer tasks using the fast optimization target. For both movements no solution was found by the optimizer for knee flexion angle below approximately 60 degrees.<br/> <br/> I tried several possible solutions: making muscles...

<t>Hi,<br/> <br/> Is RRA also suitable for other movements than walking, such as jumping, sit to stand, squatting? <br/> I'm wandering because the userguide explicitely states: ‘Residual reduction is primarily intended for gait, i.e., movements like walking and running where the model is displaced r...

<t>Hi Ayman,<br/> <br/> Thanks for your promt reply. An information window states: 'Tool execution failed. Check message window for details' and 'forward integration failed. Keep partial result?'.<br/> <br/> Checking the message window, the last message is: 'Integrating from 5.03 to 5.9' (i.e. the t...

<t>I want to check the results from CMC with the forward dynamic tool. However, it fails to run, the message window stating: 'Using dt specified from storage UNKNOWN'.<br/> <br/> Is this the reason for failure and how can I solve fot this?<br/> <br/> I specified the states.sto file in the appropriat...