Search found 6 matches

by karlijn Spijker
Mon May 27, 2024 3:13 am
Forum: Spine and rib cage model in OpenSim
Topic: subject-specific implementation of pelvic alignment
Replies: 18
Views: 4663

Re: subject-specific implementation of pelvic alignment

Hi,

Thanks it seems clear to me. Thanks!

Karlijn Spijker
by karlijn Spijker
Thu May 23, 2024 7:13 am
Forum: Spine and rib cage model in OpenSim
Topic: subject-specific implementation of pelvic alignment
Replies: 18
Views: 4663

Re: subject-specific implementation of pelvic alignment

Hi, Thanks for the reply. I figured out how to change the joint angles in the model given a list of joint angles in matlab. I am currently trying to find the best way to get the angles from my MRI scan. I have read many articles and I think the best way (for my MRI images) is to select 4 landmarks i...
by karlijn Spijker
Thu May 16, 2024 6:16 am
Forum: Spine and rib cage model in OpenSim
Topic: subject-specific implementation of pelvic alignment
Replies: 18
Views: 4663

Re: subject-specific implementation of pelvic alignment

Riza, See if this does what you want... I think it may. Admittedly, I was/am a little rusty with API coding. My current role doesn't require much of it. So, it was fun to piece together old code and be reminded of what I once 2nd nature for me. I recommend using the model I attached in this folder ...
by karlijn Spijker
Mon Apr 08, 2024 7:28 am
Forum: Full-body models with detailed thoracolumbar spine for children and adolescents
Topic: Muscle parameters
Replies: 0
Views: 166

Muscle parameters

Hello, I am quite new to open sim and I am using the models for my graduation project. I have a question about the muscle parameters in the different models and I hope you can help me to get some thing clear. I understand the Isometric force of the different muscle are determined using the cross sec...
by karlijn Spijker
Wed Feb 28, 2024 8:51 am
Forum: Spine and rib cage model in OpenSim
Topic: Joint reaction analysis
Replies: 2
Views: 579

Re: Joint reaction analysis

Thanks for the reply!
I will have a look at the muscle analysis.

Karlijn Spijker
by karlijn Spijker
Tue Feb 27, 2024 7:29 am
Forum: Spine and rib cage model in OpenSim
Topic: Joint reaction analysis
Replies: 2
Views: 579

Joint reaction analysis

Hello, I want to get a better understanding of how the joint reaction analysis is performed, for example in the L5_S1_IVDjnt_on_lumbar5_ground_fy. I think the joint reaction analysis is performed using the following formula: R(L5_S1) = inertial load - (Fexternal + Fmuscles + Fcontraints + R(L4_L5_IV...