volteur wrote:golfdane wrote:volteur wrote:powerplant42 wrote:If the swing is only a reaction to the take-off, then why even train it? Why not just train your take-off instead? One trains it because it is an opportunity to conserve/add energy into the system with the abdominal muscles. The 'reaction' you're talking about gets the swing started, but the vaulter must ACTIVELY swing, that is, not just let momentum do all the work.
yes agreed there is some sort of active component. But what exactly? Do you swing the foot like a kick or maybe like a tap from gymnastics. Or?
http://www.youtube.com/watch?v=f_l-4YC1VSk
I see in this video a compensation. He has to swing his foot a little extra to replace a lack of energy from his arms. Still, a lot of his swing energy is still created from actively creating the C position during the backswing. Just not so much energy from the arms and shoulders.
Volt
He's using the exact same mechanics (a kick of the lower extremeties at the right time) that a gymnast is using when making full swings in the high bar. The run-up speed and take-off will create the arch when the athlete feels the resistance of the top hand, and his hip flexors, abdominals and eventually lats, will react to that tension, and contract (or the athlete should strive for that), in the exact same way that the flexion of the foot serves as a pretension of the calf muscle, that should be released just prior to the foot hitting the ground. In the drill, the arch is created, but the position isn't any different than what is achieved in real pole vaulting.
This action will load the pole. The forces in action are clearly visible by the amount the high bar flexes when someone is doing this drill.
http://www.youtube.com/watch?v=JqS-GGiC ... re=related
You can add a run-up and take-off to the drill, and achieve the exact same thing, and achieve the arch from the same mechanics experienced in a real vault, but you only make one roll at a time (unless you create the arch artificially on the rest). Couldn't find an exact match at youtube, but this is pretty close:
http://www.youtube.com/watch?v=xvqj_TKVIHs
(note that 2nd athlete drops his lead leg immediately after take-off, and brings it back into the preferred position afterwards.
The arch can be achieved by the coach bringing the athlete into the arch (hold foot and press on the back), and the roll-up can be easily achieved (but requires more than the athlete).