To undertake this activity, it must be remembered that physical preparation is not important, but also mental predisposition. It is necessary to be aware that during the underwater diving you go down to several meters of depth and if you are not relaxed, unpleasant inconveniences could occur.

Obviously a good training is indispensable, since the pressure could cause damage to the lungs and the body. Many people practice apnea thinking that is a game, and it can cause serious consequentze:
- Syncope for apnea prolonged
- Synchope for deep apnea
- Hyperventilation
- Contraindications

water sports are directed on various apnea styles:
- Static apnea
- Dynamic apnea
- Free apnea
- Constant weight
- Variable weight
- No Limits
