EMG processing for forward dynamic simulation during impact events
Posted: Wed Mar 22, 2017 4:21 am
Dear All,
I am using EMG data collected bilaterally from the neck muscles (sternocleidomastoid and upper trapezius) during a rugby scrum engagement as controllers for a forward dynamics simulation.The impact is causing some high amplitude spikes even after a bandpass of 20-200 Hz. I have tried a few ways to smooth the data to input into the simulation (moving average, secondary lowpass [5-10 Hz] to create linear envelope), however I am not sure how to best treat the data so that I don't get "jumpy" movements from muscle activations during the simulation.
The time period I am interested in is <200-400 ms during which the amplitude alternates quickly by. Is there a preferred method of processing the data to be smooth enough for input as a controller into a forward dynamics simulation but still retain the physiological pattern or is it just trial and error?
Your help and directions would be greatly appreciated!
Best regards,
Pavlos
I am using EMG data collected bilaterally from the neck muscles (sternocleidomastoid and upper trapezius) during a rugby scrum engagement as controllers for a forward dynamics simulation.The impact is causing some high amplitude spikes even after a bandpass of 20-200 Hz. I have tried a few ways to smooth the data to input into the simulation (moving average, secondary lowpass [5-10 Hz] to create linear envelope), however I am not sure how to best treat the data so that I don't get "jumpy" movements from muscle activations during the simulation.
The time period I am interested in is <200-400 ms during which the amplitude alternates quickly by. Is there a preferred method of processing the data to be smooth enough for input as a controller into a forward dynamics simulation but still retain the physiological pattern or is it just trial and error?
Your help and directions would be greatly appreciated!
Best regards,
Pavlos