Data preparation
The injuries were organized in number and percentage according to the
location, type, mechanism, recurrence. The hours of training and games
were calculated based on the weekly schedule that was sent to us by
email by the coordination of the club. For each field training, of all
categories, two hours and thirty minutes were considered. Regarding the
games, for the sub 15 category, each game counted as 1 hour, for the sub
17 category each game counted as an hour and 20 minutes, and for the sub
20 category, each game counted as an hour and 30 minutes.