Therefore , in sport sciences as in others , controlled conditions for experiments are needed to gain reproducible and reliable measurements of the performance of players .
For them , improving these skills is mandatory , due to the competition of skilled performers ( SB09 ) .
In sport sciences as in others , controlled conditions for experiments are needed to gain reproducible and reliable measurements of the performance of players .
For them , improving these skills is mandatory , due to the competition of skilled performers ( SB09 ) .