 The objective of a preseason screening is to clear the athlete for participation and verify that there is no sign of injury or illness, which would represent a potential medical risk to the athlete (and risk of liability to the sports organization).Besides the physical examination and the fluidity of the movements of joints the preseason screenings often takes into account a nutrition aspect as well.It is important to maintain normal iron levels, blood pressure levels, fluid balance, adequate total energy intake, and normal glycogen levels.