all the deceleration is taken on the feet and ankles
Jumping a round canopy only the very experienced were able to do as you describe, those without that ability no, or very little, stress was taken through the legs or ankles because of the inability to precisely judge the moment of touch down due to ground rush, the landing roll distributes the landing shock sequentially along five points of body contact with the ground, the balls of the feet, the side of the calf, the side of the thigh, the side of the hip, or buttocks, the side of the back.
I'll try my best to avoid the experience....
It's the best fun to be had with your pants on.
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