markers weight and adjusting virtual markers position

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mahdieh h
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Joined: Fri May 27, 2022 8:33 am

markers weight and adjusting virtual markers position

Post by mahdieh h » Wed May 03, 2023 8:56 am

Hello everyone,

I am working on a biomechanical modeling project using OpenSim software to estimate lower limb joint angles. For this, I have placed markers on the lower limb based on plug-in-gait lower limb protocol. However, during my experiments, I placed markers on a stick that was 2-4 cm away from the skin instead of attaching them directly to the skin.

My question is: should I give weight zero to these markers during scaling, or should I manually adjust tibia and thigh virtual markers position to match the experimental markers on the tibia and thigh?

Given the fact that these markers were placed on a stick and not directly on the skin during the experiments, what would be the best approach? How much weight should I give to these markers during scaling and during IK analysis? And should I manually adjust their position during scaling?

I would really appreciate any suggestions or insights on this matter. Thank you in advance.

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