Detail of Butterfly Kick (Dolphin Kick)（蝶泳腿的细节）
1 January 2005
Von / By Felix K. Gmünder
翻译：shengliang1983
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Introduction
I assume that you already are familiar with the wavelike swimming technique.
Once you master the basics of wave-like motion you certainly want that your body wave becomes more efficient (I avoid the expression kick on purpose). An important technique detail is not to come in conflict with the wave created by the "pumping" action of your trunk. I show you what is important.
It works best if another swimmer watches and gives you feedback or if he or she tape-records you.
Photo 1:（图1）
By pressing your chest down you initiate the wave-like motion. Press your chest up and down in the water as gently and rhythmically as you can.
下压你的胸部来启动波动动作。使你的胸部在水中尽可能轻柔和有节奏地上下运动。
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Photo 2:（图2）
If the timing of your pumping motion is perfect you create a wave that runs from your back over your buttocks along your body (photos 2 and 3: arrow).
如果你的脉动时机做的很好，你就会产生一个波浪，这个波浪从你的背部沿着你的身体向你的臀部运动。（图2和图3中的箭头显示了这个水波）
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Photo 3:（图3）
If your timing is wrong the wave hits your butts, which breaks your speed.
如果你的时机错了，那么这个波浪就会打到你的臀部，并削减你的速度。
