Originally Posted by dominikk1985
the kinematic chain doesn't start at the hip. it starts at the ground. the hips don't rotate by themselves, they are rotated by the ground reaction forces.
Are you sure on this? If the hips are rotated my ground reaction forces,, what is
causing the reaction? an action. The action starting at the hips, right?
In martial arts we were taught the forces start at the hip and flow out in both
directions...down to the ground and out to the action. Do you have a good
source for your claim?