Hi, Has anyone successfully run CMC with the LaiArnold model? I'm using the gait_2392 actuators (adjusted to model's COM), controls, and tasks files because I haven't found alternatives to those files specific to LaiArnold. Is there a part of these files I could change to make them compatible with o...

Hi all, My question regards rescaling a model after receiving results from IK. After scaling a model in static pose, do you know why you would or would not want to rescale the model after running IK on a walking trial to get better results in the next iteration of IK? I have associated the trc file ...

Hi Adrian,

I'm doing a similar study with cycling and using only pedal forces as input, not seat or handlebars.

What were your results from this comparison? We are examining different methods and hope to find one that has worked well for other studies.

Thanks,

Emily

Hi, I have gotten expected results for RRA with a subject's gait (walking) experiments. However, when I use kinematic data from a cycling trial, which seems to provide good IK results, I get a recommended mass adjustment of lowering each body segment by about 90% of their masses. Has anyone seen thi...

James, I have done some reading and now have tried just to lock mtp joints, which warrants a normal-looking gait seen here: https://ibb.co/nepnc5 compared with the unlocked joints here: https://ibb.co/ct7eqQ and https://ibb.co/iaAFVQ However, I plotted the right knee angles for inverse kinematics, b...

Is anyone familiar with locking coordinates, specifically mtp and subtalar, for scaling and the effect on inverse kinematics? In one case I unlocked the coordinates for inverse kinematics and one foot became malformed. In another case I left the mtp and subtalar coordinates locked, which gave me a m...

Hi Ryan, I have a similar question about keeping mtp and subtalar angles locked during IK. When I unlock the coordinates, knee joint angles vary slightly, but the feet on the model appear much more abnormal. I'm wondering if it's better for realistic knee joint angles to have locked or unlocked mtps...