The impact of competition effort on the vital capacity of football players according to the playing positions.

The study focused on identifying the effect of competition effort level vital capacity young football players according to their playing centers. researchers selected sample from (82) Fallujah clubs, Golan club and youth stamina club, which numbered (82). research problem lack clarity vision in respiratory competence represented by aimed know immediate identify that variable centers football. For existence differences results post-test used descriptive approach (case study) conducted pre post tests scientific foundations. concluded match has an for all Players are different lines was varied play most affected midfield, followed defense line, then offensive line finally goalkeepers. recommended additional studies be other variables system functional devices conduct find out groups such as juniors advanced.