Role of the Neck during Impact Loading Public Forum

Building upon the Vasavada 1998 neck and head model, we are exploring the role of muscles and passive cervical spine (neck) soft tissue in stabilizing the head and neck following impact loads. We have collected human subject head kinematics data undergoin
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Role of the Neck during Impact Loading Public Forum

Post by SimTK Admin » Wed Feb 28, 2018 5:38 pm

Welcome to the Role of the Neck during Impact Loading public forum. Feel free to browse or search the topics for helpful information, or post a topic of your own.

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Cornel de Jongh
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Re: Role of the Neck during Impact Loading Public Forum

Post by Cornel de Jongh » Tue Jul 23, 2019 6:18 am

Hi Calvin,

Many thanks for you and your team's great work on this neck model.

I am however having difficulties to open the model in OpenSim. I get the following error message.

Component 'supmult-C4/5-C2_r' of type Millard2012EquilibriumMuscle contains invalid characters of: '\/*+
'.
Thrown at component.cpp:199 in finalizeFromProperties().

Can you possibly assist?

I am still very new with OpenSim, so might be something simple that I am doing incorrectly when opening the model?

Thanks!
Cornel

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Calvin Kuo
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Re: Role of the Neck during Impact Loading Public Forum

Post by Calvin Kuo » Tue Jul 23, 2019 11:47 pm

Hi Cornel,

Sorry for the late reply, I don't usually check the forums. What version of OpenSim are you using? The model was built I believe in OpenSim 3.3, so things might have changed if you are using the newer version of OpenSim 4.0

The error seems fairly straightforward though in that I believe OpenSim is complaining about the name of the particular muscle having invalid characters it doesn't like (namely the backslash '/'). A quick fix would be to remove or replace those characters.

Hope that helps,
Calvin

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