Inserting and driving a box in mocap model

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1

Hi

I am using the mocap model to simulate a load carriage task. I am unable to get the box moving and attached to the hands.

I have followed the following steps:

  1. Created an AnySeg object with nodes and included it into the environment folder
  2. Inserted in AnyKinDriverMarker into the environment connection folder (4 markers)
  3. Inserted in two revolute joints for the hands also in the environment connection folder

Attached is my model. Please can you advise the correct steps and how I go about solving the problem.

I have been advised to do conditional contact and insert residual forces but am unsure how to do this. If someone could advise that would be great.

Thanks Kirsten

2

Kirsten,

there is a tiny error in the model. The Box & drivers need to be included into the study. I fixed it in the attached file by moving the box itself into the EnvironemntModel which is included into the study.

3

Hi Amir

Thanks so much!

Have another question for you with regards to the forceplates. My participant is doing a load carriage task and is walking over one type 2 forceplate. After inverse dynamics is run, the muscle activity is not equal for both legs (both legs completed full gait cycles in the model). Does this suggest I can only analyze the leg which has direct contact with the forceplate?

I have attached two graph of the muscle activity for the rectus femoris (right and left leg) and I have attached my model. Both are within the Zip File attached.

Regards,
Kirsten