
Originally Posted by
alpinerabbit
In long distance swimming (1500m freestyle and up) & triathlon, you generate most of your propulsion with your arms. Big Girls, correct me if I am wrong.: your legs are mostly used to stabilize your position in the water. Hence the girl from South Africa who qualified for the Olympics in the long distance swims despite being a leg amputee!
True that the kick functions predominently to stabilize the body and help with roll etc (in distance swimming). What's common thought and not true is that we should intentionally minimize our kick (Alpine didn't say that in her post, I just bring it up because it's a common myth). You should kick in the way that gets your hips high in the water. For some distance swimmers, that happens with a 2 stroke kick, for others, that's a 6 or even 8 stroke kick. If a higher kick rate improves body position, the amount of energy you expend increasing your kick is more than made up for by improving your drag co-effient in the water. On the other hand, if you've got good body position with a 2 stroke kick, there's no reason not to kick at that frequency.
That brings us back to the goal... getting faster means getting streamlined in the water, so long but relaxed leg kicks focusing on moving from the hips joints and using your glutes is best.
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