Normalising Data

[Mohamed Mohanna]

1)After using Inverse kinematics and Inverse dynamics is it possible to normalise the data with respect to gait cycle?
2)Is it possible to take the IK results or ID results for the same patient but different motion trials and calculate and plot the mean results?
3)Is it possible to export the calculated data(IK and ID) as an excel sheet?

Thanks in advance

[Zakia Hussain]

1) and 2)Yes you can do it but not in Opensim. You can use MATLAB/Python
3) Ofcourse just open excel and open the .sto file.

Hope it helps

[Milosz Lukaszewicz]

Hi, I am trying to achieve the same thing with associating joint angles with % of gait cycle and calculating the mean of several trials. How one would go about it in MATLAB? Are there any existing scripts that can do this or do we have to write our own from ground up?

Kind regards

[Zakia Hussain]

Hi

I am not really sure since m writing my own script. If you are using BOPS toolbox https://simtk.org/projects/bops, it will plot it for you according to the gait cycle (%)

Not sure about other tools.

Hope this helps

[Mohammadreza Rezaie]

Hi, I see you chose GUI for this post. For normalizing the data to 101 points, you need gait events. If you already adjusted the time range in IK/ID tools, you can run this script in GUI [Scripts>Run]. It prompts you to choose a directory where multiple STO or MOT files are located and then, it writes normalized files with '_N101' suffix.

sample.zip

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Hope this helps - Mohammadreza