How is training really a referee?

Dear readers, 

In this video we want to show a training of a football referee, in addition to an interview in which he explains the tests that they need to pass and the difficulty of these.
We hope you like it.

The invisible training of the referees

Dear friends,

We find little information about the physical training and nutrition to the performance of this group.  

Without suitable training and insufficient nutritional preparation, the referee could fall in fatigue and he can't direct adequately the competition. 

Referees run a similar distance that the players, for this reason these people have to follow a good daily nutritional.

Psychology training of the referee, literature review

Dear readers,

In this review, we will do an analysis of the different articles about the psychology of the referee. It have clear objective: to know how the different external aspects have influenced to the referee: as the players, surroundings, environment, coach and the spectators to make a decision.