i would like to filter the data because i decide to analyze joint kinematic patterns using Principal Component Analysis, and this method is very sensitive to small deviations on the pattern, so noisy joint kinematics could potentially induce errors. best regards Farzaneh Yazdani PhD Candidate, SUMS ...

Dear Dimitar, I have a basic question about filtering,i would be really grateful if you could answer. in my previous project i performed data processing with V3D software, in this software i was able to firstly apply low pass filter on marker trajectories, then calculating the IK ( joint angles for ...

Dear Dimitar, thanks a lot for your reply. I filtered the data using "butterworth 4th order, cut off 6" then i performed Qubic Spline function on them for the purpose of time normalization. would you please take a look at attached file to see the result? I'm afraid if the data were manipulated too m...

Dear All, I am working on gait kinematics using ‘gait 2392’ model. it seems that the results of inverse kinematic for the pelvis are noisy (would you please take a look at the attached file). I am sure that scaling is performed with the minimum error (RMS = 0.01234) Now the questions are: 1) What is...

Dear All, I am working with “Gait2392.simbody” to simulate walking trials. Based on the research proposal I should restrict my analysis to the stance phase of the right leg. I have just one force plate in our lab. can I compute heel strike and toe off time points by Opensim software? Any information...

Dear John, Thank you for taking the time to answer my question. i attach the markers as below: acromium markers on Acromioclavicular joint (too much RMS error with this marker during scaling!) Top.Head on Inion of the skall, Vsarcal on sacral base, RT & LT.ASIS on the ASIS bony landmark, Sternum on ...

Dear John, Thank you for taking the time to answer my question. i attach the markers as below: acromium markers on Acromioclavicular joint (too much RMS error with this marker during scaling!) Top.Head on Inion of the skall, Vsarcal on sacral base, RT & LT.ASIS on the ASIS bony landmark, Sternum on ...

Dear All, I am working on “Gait2392.simbody” to simulate walking trials. During scaling the model, in“ preview static pose” I find that there is too much difference between some of the experimental marker’s location and what is default for virtual markers placement in Opensim. Any clear guideline to...

hello all,
i have the same problem.does anyone find solution?