Moment arms

[Anders Sandholm]

Hi

Quick question, but there is an option to calculate the moment arms in the plot tool. Now, my question is if there is any setting for any of the tools (like the analyser) that will do this for me and print it to a file.
I looked around but didn't find anything.

cheers

[Travis Peterson]

Any of the plotted graphs should be able to be output to a .txt file. Bring your mouse on the plot itself, right click, and go to "export data." You'll get prompted to a screen where you can specify name/directory etc.

Hope this helps.
Travis

[Ayman Habib]

Hi Anders,

The plotting tool in the GUI uses the Analyze Tool to run a MuscleAnalysis which computes many quantities of interest about muscles (including all those shown as built-into the plotter). You can Add a MuscleAnalysis to most tools to get this info outside the plotter.

Hope this helps,
-Ayman

[Nur Adila Faruk Senan]

Hey Ayman,
I found out recently that if you just run your analysis with the plot window open, it also gives you all the MuscleAnalysis info without you having to add a MuscleAnalysis manually into any of the tools. Just figured I'd mention it since it seems like a pretty neat thing.

adila

[Anders Sandholm]

Hi

Thanks, added an MuscleAnalysis... but.. i cant find any documentation what goes in what file. Is there any documentation of this tool?

My question is where do the moment arm length goes?
PREFIX_MuscleAnalysis_Length.sto ?

cheers

[Ayman Habib]

Anders,

The XML element <moment_arm_coordinate_list> specifies the coordinates we're measuring the moment arms relative to (e.g. pelvis_tx)

When you run the MuscleAnalysis you'll get a set of files with the names (e.g.
model_MuscleAnalysis_MomentArm_pelvis_tx.sto) that contains the moment arms (one column per muscle with corresponding name) about pelvis_tx.

Similar convention is used for Moments.

Hope this helps,
-Ayman

[Michala Cadova]

Hi,
I run the Analyze tool, since I am interested in the moments’ arms. And I am also wondering, where the results are saved? I got several .sto files (ActiveFibreForce, FiberForce, Force, Length, PennationAngle, etc.), but none is “MomentArm”. What am I doing wrong?

Michala