golfdane wrote:VaultPurple wrote:Because the chest is driven through and up and in front of the top hand you should be able to swing just like on a high bar. And like how you do not have to pull to swing up on a high bar, you do not have to pull to swing up on the pole vault pole. You should think about pushing that pole up and driving it to vertical.
No, you do not HAVE to pull to swing up on a high bar or a pole, but the question is not about "HAVE to". The question is, can you speed up the inversion, and get into a straight vertical position faster? The pole does not constitute a high bar. First of all, the pole is angled differently to your body. One hand is lower than the other. Is there ANYTHING you can do with your lower hand, that enables your hips to rise faster?
http://www.stabhoch.com/pages/19920713_Bubka_611.html
Look closely on his left arm, just after his hips start to break and notice what it does as his hips rises. Now, his body is hindering us to see the pole, but other videos of Bubka shows, that the part of the pole between his hands seem to straighten out a bit. Apparently, is the lower hand pulling.
Excellent analysis golfdane! And this is 6.11m!!! not 5.80m look at the potencial! So much speed is generated during the pull and the center of gravity acceleration that his legs are still moving up when he releases the pole. That is the difference! He was about 181cm or 6' and ran his 9.6-9.8 m/s on the last 5m, so what made the difference?!!!