I'm hearing lots of hype, but I'm not getting any scientific, biomechnical, physics explanations of the 2 concerns that Stipke raised, and that I agreed with.
I wasn't asking for any off-topic replies. What I want are the answers to 2 simple questions:
1. Grandevaulter, you wrote "It is not possible to whip kick starting with a straight leg.
Why is this not possible? Is the video proof of SB and RL not good enough for you? Or are you saying that they MUST bend their trail legs purposely
, before they swing?
From my observation of their vids (and from my own first-hand experience in vaulting this way) I know for a fact that you can whip-kick without purposely
bending your trail leg knee. It's done with the rectus femoris
muscles. So I will ask you once again to please explain yourself. We seem to be talking past each other.
2. Charlie, I know of your career record, and I applaud you for it. I also applaud your enthusiasm. But that doesn't explain Newton's law "For every action, there is an equal and opposite re-action
" as it relates to a vaulter swinging on a pole.
I am saying that any off-center pressure against the pole will cause an equal and opposite reaction, thus forcing the vaulter off-center.
Please explain how you're defying Newton's Law. Maybe you feel
the pole move to the side as you're applying pressure to it, so you think
you're purposely pressing it to the left?