Re: GRV: Lavillenie - From Stall Swing to World Record
Posted: Fri Feb 06, 2015 11:42 pm
Will, I believe the entire premise of your Gravity Vector point is that Lavelillenie has found a superior way to load the flexing pole earlier,while in the air by keeping his Cog low by keeping his legs and hips back more and longer in his swing. You now have fully explained from a Physics standpoint why this is advantages and how and why it allows the forces of gravity to be more effective. I concur with your observations and Physics. I believe he initiates this immediately as soon as his feet leave the runway by having a flatter take off, less knee drive, more extended bottom arm, lowering his drive knee and double leg swing. It is obvious to me by the very fact that he is doing ALL of these things, and all of these things lower the vaulters COG, that his intent is a low path, low COG downswing. Look at PV Students side by side comparison of Lavillenie and Bubka. This is indisputable.
Now that this is established (at least between you and I) I am imploring you to take a look at another observation I have made and to try to use your understanding of the poles motion, lean,bend, rotation (Path), coil and uncoil to understand and explain the advantages or perhaps disadvantages of my observation. My observation while watching both slow motion Video and also side by side still comparisons of Lavellenie and Bubka (Thanks to PV Student) is that Lavellenie has earlier and perhaps even more elemental pole rotation with his method than Bubka has with his. Look at PV Students stills on page 7. Photos 5,10 and 14. Obviously Lavellinie method provides faster and perhaps even more natural pole rotation and I believe it is because he is not fighting it. Why is this important you may ask? The poles. lean, coil,uncoil and elemental rotation places significant centrifugal forces on the vaulters body. My theory is that Lavellenies method has found a better way to take advantage of those centrifugal force and the poles path, by lining himself up with it better in time and space and using it to more easily cover the pole in an efficient manner to take advantage of its forces throughout his swing and into flyaway. That's enough to chew on for a bit. Take a look at this video and tell me if you think it has any merit? http://howtopolevault.com/video_facts.html
Now that this is established (at least between you and I) I am imploring you to take a look at another observation I have made and to try to use your understanding of the poles motion, lean,bend, rotation (Path), coil and uncoil to understand and explain the advantages or perhaps disadvantages of my observation. My observation while watching both slow motion Video and also side by side still comparisons of Lavellenie and Bubka (Thanks to PV Student) is that Lavellenie has earlier and perhaps even more elemental pole rotation with his method than Bubka has with his. Look at PV Students stills on page 7. Photos 5,10 and 14. Obviously Lavellinie method provides faster and perhaps even more natural pole rotation and I believe it is because he is not fighting it. Why is this important you may ask? The poles. lean, coil,uncoil and elemental rotation places significant centrifugal forces on the vaulters body. My theory is that Lavellenies method has found a better way to take advantage of those centrifugal force and the poles path, by lining himself up with it better in time and space and using it to more easily cover the pole in an efficient manner to take advantage of its forces throughout his swing and into flyaway. That's enough to chew on for a bit. Take a look at this video and tell me if you think it has any merit? http://howtopolevault.com/video_facts.html