Go Back   Forums > Self-Supported Forum > Debug model


Thread Tools Display Modes
Old 05-17-2018, 10:17 PM
cocoboat cocoboat is offline
Junior Member
Join Date: May 2018
Posts: 2
Default Crutch Simulation Inverse Dynamics Trouble


I was trying to simulate a person using crutches. Since I had no marker data I used video references and translated the motions to functions that I could use in Anybody ("DriverJoints.any"). For the crutches, I used simple segments with nodes ("Segment.any"). I inserted drivers so the body model would keep attached to the crutches ("HandFix.any" and "ShoulderFix.any"). The kinematics run fine but when I try to do Inverse Dynamics I get a whole lot of problems with muscle overload. Any help is appreciated. Thanks.
Attached Files
File Type: zip Webcast (279.8 KB, 0 views)
Reply With Quote
Old 05-18-2018, 09:37 AM
toerholm's Avatar
toerholm toerholm is offline
AnyBody Support
Join Date: Feb 2009
Posts: 897


Please describe what is in the model in some detail.

Is it correctly understood that you are trying to make a model using normal gait data and use it on a person using crutches?

If so, there are several issues with that e.g. motion is different ... the forces applied on the crutches needs to be "invented/predicted" and applied, how did you do this?

Best regards
TIP: How to save and load results. play_Results

Subscribe to the forums, click the 'Forum Tools' link above the list of threads then select 'Subscribe to Forum'. You will then have the option to choose the subscription mode for this forum and get an email automatically.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +2. The time now is 12:09 PM.