On several occasions I've read that the petrov model utilizes a straight leg swing instead of shooting out because it keeps the continuous chain going AND it adds energy into the system. I'm curious as to how much energy can be gained from the swing. For example, if I was to do no training for the next six weeks except strengthen my abs, back, and hip flexors, how much more energy could I put into the pole? Even if it didn't put much energy into the system, would it shave a tenth of a second from the swing allowing the vaulter to get into a better position? I was hoping to get some thoughts on this.
Of course, said vaulter would need a very straight trail leg. I'm tempted to experiment (even though I probably have more pressing matters to fix in my vault
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).
http://www.youtube.com/watch?v=lX6oO23eo4g
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