RESPIRATORY FUNCTION CHILDREN DIVERS
The number of young divers systematically staying under water increases every year. Aim of this study was to investigate the performance of external respiration in children with a single underwater scuba diving in a swimming pool. The study involved 28 healthy boys aged 12–13 years. Spirograph in children was carried out in the laboratory using the hardware-software complex "Spiro-spectrum". The dynamic lung volumes were: respiratory rate, vital capacity (VC), forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1) and estimations. It is found that in children after diving there was a significant decline of the mechanical properties of ventilation apparatus FEV1 on average by 5 %, reducing the dynamic parameters of expiratory MEF 75 %, MEF 50 % and MEF 25 % on average by 7 %.