Unread postby bel142 » Tue Apr 13, 2010 12:12 pm
Just some thoughts, in terms of the use of 'overspeed training' it is a legitimate/good way to neurologically train, however as many neurological methods do, it does have its dark sides. Everything in moderation... One of the keys to having it be useful, is to use it with/have impeccable sprint technique, this is because with poor mechanics inexperienced athletes end up putting energy forward (into braking as heal strike is manipulated from directly under the body to in front of the body) just trying to keep up with the negative resistance. To help ensure that this doesn't happen, using a minimal hill, to the point that it is almost unnoticeable or on the track, running with a mild/medium tail wind is ideal. The ultimate goal is not to have the athletes run quickly during the drill, but rather, it is to take away some resistance when running allowing to maintain proper technique while achieving a quicker turn over.
Some people will disagree with me saying you want a sizable hill, I disagree with that because to maintain proper sprint technique that alone will probably increase the possibility of a fall or a counterbalance within the body. Also running down hill feels easier and it is, however it increases the ground reaction force enough so that when the body strikes the ground, it can cause damage to the feet. Inexperienced athletes are going to be more likely to damage feet/shins because they are striking the ground with more than their normal running ground reaction force, however they may not be aware that is happening... yadda
It can be used with a bungee as stated above, am not a fan of the bungee method only because it places an external force within the body. When tied around the hips the athlete now also needs to deal with that pressure which is not really ever there in real situations, and just learning where to place the pelvis/hips in running is a huge part so hindering that aspect is not great (in my mind) But it defiantly is a good way to achieve this 'overspeed'.
anyway, just some thoughts
cheers,
-bel