[视频] Backstroke - Backwards Board Kick

While this can also be used for butterfly work, here's a quick drill to help with your dolphin kick off the walls for backstroke. Why do it: This drill can show you how your legs connect through your abs for a great underwater dolphin. The more you connect your core to your kick, the faster it will be.

Working on a solid dolphin kick usually requires a board, or the rigors of holding your breath and kicking under water. Here's a drill that will help you develop a stronger kick, as well as allow you to work the core muscles

“它山之石，可以攻玉”！如此特殊新颖的训练方式，的确大开眼界啊！
国外先进的训练方式，的确值得我们学习（创新才是硬道理）！