title: [Dynamics of some indices of immune defense and physical fitness in school children].
abstract: Examinations of 22 young unarmed self-defence sportsmen and 18 untrained schoolchildren indicated that the indices of nonspecific immunity defence--serum complement and lysozyme--depended on a season rather than on a motor activity regimen. Changes in the concentrations of hemoglobin and plasma iron were also obviously seasonal. These indices were the least in spring and winter as compared to autumn and winter. Blood iron levels were higher in the young sportsmen than in the untrained schoolchildren at all stages of a follow-up. There was a direct relationship between direct and indirect parameters of iron exchange, physical fitness, and nonspecific protection factors. In all teenagers, the activity of serum lysozyme and complement was directly related to the plasma level of iron and the school children's physical fitness was closely correlated with plasma and blood cell iron concentrations.
authors.forename: V V
authors.initials: VV
authors.lastname: Nasolodin
authors.forename: S M
authors.initials: SM
authors.lastname: Voronin
authors.forename: O N
authors.initials: ON
authors.lastname: Zaĭtsev
authors.forename: I P
authors.initials: IP
authors.lastname: Zaĭtseva
mesh_terms: D000293:Adolescent; D000367:Age Factors; D003165:Complement System Proteins / Q000032:analysis*; D006304:Health Status; D006801:Humans; D007501:Iron / Q000097:blood*; D009113:Muramidase / Q000097:blood*; D010809:Physical Fitness; D012621:Seasons; D013177:Sports
chemical_list: D003165:Complement System Proteins; D007501:Iron; D009113:Muramidase