這是費爾普斯 (Michael Phelps) 的教練包曼 (Bob Bowman) 對自由式換氣的一些建議。所以是進階課程的內容，是對選手的訓練與要求。但是了解世界級選手訓練的標準與觀念對自身的學習與訓練也很有幫助。




以下是我所做的重點節錄。

1. 頭與身體的轉動一致 

     Rotate your head in line with your body.

2. 不要過度轉頭－－最好的指標是讓一邊蛙鏡留在水裡，只有一邊出水。(眼睛看像斜後方，不向上看。) 

    Try to take your breath with one goggle in the water.  If your head is in right position, then there will be bow wave form about your head, and you actually take your breath with full mouth inside that bow wave.  If both goggles shown, then it's "over rotate".  Just to make one goggle showing then your head and body move together.


萩原智子 (Hagiwara Tomoko) 的教學示範影片也是同一種標準：


3. 換氣的模式：

年輕的選手最好是兩邊換氣 bilateral breathing
年長一些最好用單邊換氣，且換氣愈頻繁愈好，因為側身換氣時的水阻最小。

What kind of breathing pattern swimmers should use? 

They should have varity of patterns to deal with different situations. The younger swimmers should use bilateral breathing.  When you get older, you will be wanting more air, and you also would like to have more rotation on your strokes.  So, it's advantageous then to breathe on one side more than once.


 Supplement: 

I myself tried this technique for the first time on Monday (2010.1.24) swimming 500 meters.  I often got little water in my mouth as I tried to breathed with one goggle in the water.  But generally, it is not a difficult technique as long as the swimmer pays attn to it.  However, to breathe in the bow wave of head, it might take more practice to make the breath more smooth and without taking water.  Perhaps little water in the mouth was expected when this technique employed.