I'm currently studied the pronation with a sensor (accelerometer 3D and gyroscope 3D) in the foot plantar position. I would like to know the pronation degree of the foot and the foot roll during a walk.
I tried to integer gyroscope data to know the degree at the heel contact. But I think the heel contact doesn't represent the pronation degree. But if I know the degree at the heel contact, at toes contact and at the propulsion, I can have a pattern of the walk.
This pattern, Can it be useful to me in order to know the pronation/supination too ?

Thank you