It never ceases to amaze me how hard people work when they are swimming or trying to swim. We've all seen these people - perhaps you are one of them. They flail their arms and legs, twist their bodies every contorted direction and push water around the pool so much so that a tsunami warning ought to be issued, yet they make little to no progress in propelling their body across the pool. And if they do get anywhere, they are wiped out within 25 meters of doing so. Meanwhile, the guy in the next lane over has gotten down and back in as few as eight strokes. What gives?
Perhaps you are trying too hard. The guy in the next lane can pull off the eight stroke lap because he is using the dynamics of physics to his advantage. If you look at anyone who can pull this feat off successfully, I can almost promise you'll see the following:
1. The good swimmer is keeping his body line straight throughout the stroke - this means as he goes through the water, he cuts through it like a knife so there is minimal resistance (unlike the contorted body swimmer who creates a wall of water between himself and his destination with each stroke).
2. The good swimmer keeps his hands and arms in line with his body - they do not flair out to the side like an owl. Think, which is faster in a dive, the owl or the eagle?
3. The good swimmer has a long pull, from the furthest point in his reach forward, to the furthest point he can reach behind. The flailing swimmer using only a small percentage of the available stroke distance.
4. The good swimmer uses little energy to propel himself. Fact is ... the good swimmer spends a huge proportion of time in the stroke gliding compared to the flailing swimmer. The flailing swimmer does not glide at all.
I do a good bit of lap swimming (see goals - lower left) so I have lots of time to think about it. I routinely see athletic folks who can't swim, or swim poorly + often wonder why I find it so easy - I'm not particularly athletic. This blog is about what I'm learning about swimming dynamics + some fun stuff too.
For your safety, all posts + comments are musings + tips that have worked for me - opinion only. For the record, I strongly suggest following Red Cross swim-safety protocols.
Monday, October 05, 2009
If you can't swim maybe you're trying too hard
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