Questions about the protocol and kinematic

[gabrielalsantos]

We are reading the BodyMech Guide but we have some doubt about which protocol and body we should use. We our study we performed only one static trial (calibration) with bilateral landmarks and clusters in upper extremity. And, we have interest to evaluate trunk, scapula, upper arm (humerus) and forearm (radius). And after, we performed a functional trial with each UL in separate files. Posteriorly, we have 5 dynamic trials with each UL in separate files. I would like if we have to perform the segmentation and the best cycles selection. Thanks.

[u0078867]

Hi Gabriela,

first of all thanks for getting interested in U.L.E.M.A. and the BodyMech core underneath. I tried to reply to each point:

• Calibration: this feature is luckily available into the Kinematics option, named Use single calibration file;
• Body model: given your type of acquisitions, a good starting point is the file _BodyModel_UL_12SegmBilat.m which includes all the segments you need. However, this includes also the hands segments, which you don't want, so you should do some editing in this file (copy-paste it first) and remove info about the hand-wrist
• Protocol general consideration: my advice is, for your specific case, to create 2 protocols. One for the right side and one for the left, but using the bilateral body model file. Then, for the right side protocol you just unselect the the right side related joints. The same for left side. Then for each of the 2 protocols, you create functional elbow axis and/or GH center settings for the a monolateral configuration (you can check monolateral protocols for this). Same for events defining the segmentation procedure.

Did you already study the full documentation of ULEMA, besides BodyMech Guide?

If you further problems, I would proceed this way (that would anyway require a bit more time to be accomplished):

• you send me a a demo set of acquisitions
• I would create the appropriate protocol and test it on the data
• send processed data back
• explain the settings of the protocol

Regards,

Davide

[gabrielalsantos]

Hi Davide and Ellen,

Thanks for your help! Yes, I read full documentation of ULEMA.

I hope I have no more problems. If I have, I look for you again.

I agree with Ellen, I have to study a lot about the UL Kinematics. I will.

Again, I really appreciate your help!

Gabriela.