접영 - 한팔접영 (Butterfly - Single Arm, Extended Arm)
Butterfly - Single Arm, Extended Arm Posted by Glenn Mills on Oct 12, 2007 08:00AM Here's a different take on a drill we did about 3 years ago. This shows there are many ways to do the same drill. While many people think you should breathe to the front on single-arm fly, that's not going to get you the whole story. Why do it: Single-arm fly is a great way to build a technically solid butterfly, ..
2010.04.27