Turns - Knee Your Chin

iswim

Swimming fast isn't just about a great pushoff and streamline.  
Why Do It:
How quickly you get through the turn has as much to do with fast times, as fast swimming does.  In practice, swimmers can relax a bit too much, open up their bodies, look back, and simply take too much time by being sloppy.
How to Do It:
1. This works for all turns.  Each of these swimmers has a bit too much gap between their chest and thighs during the turn.  The goal of this quick drill is to get their bodies tighter.
2. Have the swimmer stretch out on the wall, hands on the edge and feet near the surface.
3. Just as Dave Denniston demonstrates in his turns video, and as Steve Haufler demonstrats in his turns video, have the swimmer TUCK the knees up and try to get them all the way to the chin.  
4. Practice this both stationary, and with a pushoff.
How to Do It Really Well (the Fine Points):
While drills are great, doing this really well means doing it consistently.  You don't have to do this fast to accomplish it, but you do have to be very focused on staying tight, and keeping the chin tucked through all your turns.  In just 5 minutes, you can see the difference in these swimmers when simply asked to focus on this point.

中文版：

游泳快，不仅是漂亮的蹬壁和流线体。
为什么：
你要怎么快速掌握游泳的姿势。在实践中，有些人游泳可能放松太多了，打开他们的身体，回头看看，浪费了太多的时间。
如何做到这一点：
1。这样的练习适用于所有转身。这些游泳，每个人都将自己的胸部和大腿之间的差距缩短。这个快速技巧的目标是让他们的身体更紧。
2。游到墙壁上，伸出双手抓住边缘，把脚尽量伸出水面。
3。正如Dave演示的转身视频，尽量把身体缩起来，并把膝靠近到下巴。
4。实践这两个要领，与蹬壁。
如何做到这一点非常好（细点）：
要做好必须保证协调。你要快速完成必须保持适当的紧张，并保持您通过所有转身把下巴夹着。在短短的5分钟，你可以看到变化

非常好。