Abstract

Data findings indicate indices changes in young athletes’ lungs induced by swimming trainings. Such training sessions stimulate increase of respiratory system vital lungs capacity and peak expiratory flow (Courtex. et al.. 1997). Nevertheless, there is number of discussions on breathing parametres changes in young representatives of sports games during the training process, especially because e.g. during the football game quite considerable amount of physical loads is performed due to increased activity of anaerobic energy sources (Bangsbo, 1996). Anatomically, respiratory system of a child completes its development on the age 8-12, and functional development lasts up to years 14-16. Thus the question is, if withholding breathing, e.g. during the short and intensive accelerations (runs) and during the physical loads of changing intensity that is characteristic to the football game, can stimulate increase of respiratory system indices and what effect such a load may have on lungs function changes in young athletes? Does such physical load may have positive effect on children’s breathing function, when body is in state of functional rest? The aim of research was to evaluate lungs functional indices of 11 years old football players at rest and to compare it with lung functional indices of non-athletes children. Research sample included 14 young football players (age 11.0 ± 0.17) and 12 non-athletes of the same age (10.9 ± 0.2 m). There was collected anthropometrical data and lungs function test carried out using spirometre, applying SpidaXpert programme for body rest conditions, measuring forced vital capacity in litres (FVC), forced expiratory volume in one secondin litres (FEV1), peak expiratory flow (PEF 1/s), forced exhalation ratio – Tiffneu index (FEVITVC), forced vital capacity alter exhalation 75-25% FVC (FEF75, FEF 50, FEF25). Data was processed using method of mathematical statistics. statistical difference between means significance evaluated applying Student criterion, and its significance level p < 0.05. Height and body mass of tested young football players did not differ significantly from young nonathletes. Body mass indices were also similar. When comparing fat body mass in percents, we have found that fat body mass of football players was in average 10.7 percents higher then of non-athletes (p < 0.05) – it was determined by higher activity of children engaged in sport. Our research have demonstrated that forced vital lungs capacity, peak expiratory flow ( PEF 1/s) at rest in football players were statistically significantly higher than of non-athlete children (p < 0.05 ). Indices of forced vital capacity of exhalation 7500 FVC and 50% FVC were also statistically significantly higher comparing to non-athletes (p < 0.05). Tiffneu index (FEV1/FVC) was in norm in both groups, but in football playing children it was in average by 8,9 percents higher and this difference is statistically significant. Verf.-Referat