[Effect of sport participation on the dynamics of attention parameters and successfulness of studies in school children of junior age].

The study of dynamics of attention parameters in junior schoolchildren (aged from 7 to 9) going in for sports has established that this period of ontogenesis is characterized by further progressive development of attention, though uneven in rate. The age-related dynamics of change in attention parameters (its volume, efficiency, distribution and turning rate) in children having additional physical and intellectual load has been discovered to be identical with non-sportive group. The rate of formation of attention qualities in junior pupils having additional physical training is higher and more marked than in those playing no sports. This correlation is particularly prominent in 8-9-year old children. Additional physical training is one of the major factors contributing to pupils' successfulness at school. Children playing chess are characterized by the highest successfulness. The gymnasts' successfulness is higher than that of the non-sportive children of the same age but lower than in chess-players. We assume that the ontogenesis program of psycho-physiological functional development can be partially corrected by means of physical training, sports and additional intellectual loading which result in formation of a new perfected functional system responsible for higher psycho-physiological activity of sportsmen in relation to control group.