Umberger 2010 Metabolic Probe

Provide easy-to-use, extensible software for modeling, simulating, controlling, and analyzing the neuromusculoskeletal system.
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User avatar
Edward Syrett
Posts: 34
Joined: Mon Jan 14, 2019 11:04 am

Umberger 2010 Metabolic Probe

Post by Edward Syrett » Thu Mar 19, 2020 8:56 am

Hi all,
I am trying to append a Umberger2010MetabolicsMuscleProbe to a gait2392 model. I have already gone through the workflow here with success:https://simtk-confluence.stanford.edu:8 ... bolic+Cost

When I run that code, I get overall metabolic rate as well as each individual muscle.
However, when I try to add the probe to the 2392 model, all I get is the basal metabolic rate. I have unchecked the box where it asks if I want only the overall metabolics. I did examine the code of both probes. I noticed that with the gait10dof18musc model, the probe contains a list of muscles such as the following, where the probe for the 2392 model does not.

Code: Select all

<objects>
<Umberger2010MuscleMetabolicsProbe_MetabolicMuscleParameter name="hamstrings_r">
		<!--Ratio of slow twitch fibers in the muscle (must be between 0 and 1).-->
		<ratio_slow_twitch_fibers>0.49</ratio_slow_twitch_fibers>
		<!--An optional flag that allows the user to explicitly specify a muscle mass. If set to true, the <provided_muscle_mass> property must be specified.-->
		<use_provided_muscle_mass>false</use_provided_muscle_mass>
</Umberger2010MuscleMetabolicsProbe_MetabolicMuscleParameter>
<Umberger2010MuscleMetabolicsProbe_MetabolicMuscleParameter name="bifemsh_r">
		<!--Ratio of slow twitch fibers in the muscle (must be between 0 and 1).-->
		<ratio_slow_twitch_fibers>0.53</ratio_slow_twitch_fibers>
		<!--An optional flag that allows the user to explicitly specify a muscle mass. If set to true, the <provided_muscle_mass> property must be specified.-->
		<use_provided_muscle_mass>false</use_provided_muscle_mass>
</Umberger2010MuscleMetabolicsProbe_MetabolicMuscleParameter>
Is there a list of these values somewhere fore Gait2392? I looked at the Github and cannot seem to find it. Can I add this into the probe within the code of OpenSim itself so I do not have to do it every time? Thanks for your help.

Dan

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User avatar
Edward Syrett
Posts: 34
Joined: Mon Jan 14, 2019 11:04 am

Re: Umberger 2010 Metabolic Probe

Post by Edward Syrett » Thu Mar 19, 2020 9:40 am

Hi there,
I think I found a solution. Within the following project page: https://simtk.org/projects/metabolics_run is a download which has a script that will loop through the muscles and add parameters. They have also provided a text file with parameters they used for slow-fast twitch ratios. If anyone needs help with this, please use that link. Thank you guys so much for providing those links open access.

Dan

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Thomas Uchida
Posts: 1798
Joined: Wed May 16, 2012 11:40 am

Re: Umberger 2010 Metabolic Probe

Post by Thomas Uchida » Thu Mar 19, 2020 10:40 am

Glad you found what you were looking for!

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