grandevaulter wrote: This is our third week back from a break and the second day of full jumps into a 15 mph head wind, temperature 50 F. His step was under 15 cm. We've been working primarily on long swings to get him to "swing long"!!! With little emphasis on other parts.
Yes, I see a much better stretch in last May's vid than your most recent one. So perhaps showing the most recent one, where it's windy and cold and he's under is not the best portrayal of his technique.
grandevaulter wrote: Launder (Altius) comments that young vaulters need a starting point that is safe and effective that clearly maps out a way to get from A to Z.
I agree with this 100%. Even if Lavillenie's technique is proven to be superior to Bubka's (debatable), and even if the young vaulter aspires to "vault like Lavillenie
", I firmly believe that he should learn to vault "by the book
", following Petrov's methodology which is documented by Launder and Gormley in BTB2.
I say this for at least a couple good reasons (maybe more)...
1. There is no "book
" to follow if you want to follow Lavillenie's technique. It is not as simple as just watching a vid of RL and then trying to copy what you see. There's more to it than what a naked eye can see. (e.g. Is he purposely keeping his COM low? Is he resisting with his bottom arm? What is his intent?) Even so-called experts make mistakes in interpreting PV vids, so this is NOT a good starting point for aspiring young vaulters.
2. If an aspiring young vaulter doesn't learn to drive the lead knee up, he won't get an optimal takeoff. Furthermore, he won't develop the core muscles needed to swing quickly to inversion. Said another way, a young vaulter doesn't have the core strength of a Lavillenie (or Roberts or Nordwig) to execute an optimal double-leg swing, and at low bars (say sub-5.00m), there is insufficient time (my opinion only, based on personal experience) to drive the lead knee up on takeoff then drop it, then double-leg swing.
For your 15-year-old protege, I would get him on the highbar more, to ingrain the stretch-to-swing motion into his muscle memory. Even giants would not be too advanced for him!
Keep up the good work!