Re: Can you add energy after takeoff?
Posted: Sat Nov 14, 2009 11:51 pm
The Pole Vault Community Online
http://www.polevaultpower.com/forum/
http://www.polevaultpower.com/forum/viewtopic.php?f=38&t=17682
altius wrote:Couldnt be explained better Tim! But it is rather sad that after all of the information,knowledge and even wisdom, that has been put up on this site - this critical issue is still misunderstood. The myth that you cant add energy to the system after take off leads almost directly to young athletes being killed and injured.
Tim McMichael wrote:... I am not sure about this, but I don’t think there is any way a person jumping on an inflexible pole could finish a jump above their hands and land short of the pit. The connection between the pole rotating around its base and the vaulter rotating around their hands is too direct in a stiff pole vault. If the pole stops moving, the vaulter cannot continue to swing. Think about how small and shallow the pits were back then. They look like death traps to modern eyes, yet with vaulters regularly clearing heights above 14 feet, you did not have a catastrophic rash of injuries. ...
Tim McMichael wrote:I have a picture somewhere of me jumping 14’ on a sawdust pit. It looks insane, even to me, but at that moment it never occurred to me that this was a dangerous thing to do. I simply stayed within myself and landed feet first the way I had seen in old films. It is my firm belief that the pole vault is completely safe if done with even the most basic understanding of correct form, and that basic understanding must include adding energy to the system after takeoff.
Found the picture. http://www.treemo.com/files/treemo.tmcm ... 366.or.jpg
Divalent wrote:Just a classic snapshot illustrating a moment of americana. Would love to hear about what this event was.
rainbowgirl28 wrote:Divalent wrote:Just a classic snapshot illustrating a moment of americana. Would love to hear about what this event was.
I think the picture is from Guatemala! Tim isn't _that_ old, I think by the time he was in his prime, sawdust pits were long gone in the USA.
Divalent wrote:rainbowgirl28 wrote:Divalent wrote:Just a classic snapshot illustrating a moment of americana. Would love to hear about what this event was.
I think the picture is from Guatemala! Tim isn't _that_ old, I think by the time he was in his prime, sawdust pits were long gone in the USA.
Wow, even cooler! (Still americana, just a little unusual). Sounds like an interesting story. I'm visualizing it as something like: backpackin' the wild jungles of central america, with your trusty 13'6" 165 strapped to your back, willing to thrill the natives with your daring do in return for some hospitality and a warm bed of the night (and protection from the local maurading revolutionaries).