Development of Reserve Capacities of the Pulmonary Respiratory Function in Schoolboys

New data on the developmental features of the forming of reserve respiratory capacities were recorded in studies of a high risk group of physiologically retarded children and adolescents. The data showed that negative effects of passive smoking on these capacities are especially harmful in adolescents. The monitoring of the respiratory functional capacities in schoolboys made it possible to determine certain highly vulnerable periods characterized by stronger individual manifestations of the functional development of the respiratory system.