Originally Posted by albesca
"The kinetic chain energy as a sequential sum of its segments energy, it's a myth. Each segment affect the operation of the other, don't add"
I disagree with this statement.
Let’s assume we rotate torso around the spine with fixed passive straight arm. Since the arm is connected to the shoulder, it inevitably begins moving and therefore it gains kinetic energy. Thus, some segments of the body can add energy to other ones. But, I think this is obvious and you certainly understand that.