Abstract
Purpose : The purpose of the study was to determine the physical development and physical fitness of the boys at the age of 9 years old attending football classes. Material : The study covered 12 boys at 9 years old attending football classes in "Football school for children" in Jabłonowo Pomorskie. The assessment of the physical development was conducted by examining height and body weight and, on this basis, the somatic built indicator was calculated according to Rohrer index. To evaluate physical fitness, the Physical Fitness Index by Zuchor was used. Results : The studied exceed with height and weight their peers from the Kujawsko-Pomorskie Voivodeship. The level of physical fitness of the studied boys aged 9 years old did not show much diversity. Conclusions : The results improvement was not observed in most physical fitness tests.