Codified swimming: The butterfly
10.0 How to swim the butterfly
The butterfly, like the breaststroke, is a stroke in which, with each movement, we have to compensate for the upright position of the body (due to the head coming out in front). The difference with breaststroke is that in butterfly, you don't have to put your head out at every stroke. The body will therefore remain elongated when the head is not extended. Ideally, once you've learnt the basics of butterfly technique, you should only breathe every second movement
10.1 The rules of the International Swimming Federation (F.I.N.A.)
The body must lie on the chest (except during the turn)
Bring the arms forward above the surface of the water simultaneously (together)
Simultaneously bring your arms backwards (when pushing)
Make simultaneous foot movements. Do not make alternating leg or foot movements. Do not make breaststroke leg movements
Touch the finish or the turn with both hands simultaneously and separately (not one on top of the other)
The head must come out of the water at a maximum distance of 15m at the start or at the turn
Except for the first 15 metres at the start and at the bend, do not submerge completely during the swim
Do not make more than one underwater pull at the start or turn
Do not stand upright at the bottom of the pool
