仰面海豚腿是非常棒的训练，我们的水上俱乐部用得非常多。以此可以增强核心力，感知身体流线形，是我们蝶泳运动员的惯用训练项目。第一种训练方式，你可以看到Michael以流线型躺在水面上，膝盖不露出水面，上下快速打腿。
(The reverse body dolphin is an excellent drill that we use quite a bit in our North Baltimore Aquatic Club. It feels core strength for most of the awareness of bodyline, and is an excellent convention of our butterfly swimmers. The first variety of this drill that you see is Michael in a streamline position on the surface. He tries not to have the knees break the surface, and have very quick flip speed in both directions.)
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