Abstract des Autors

A study on energy balance was carried out with the aim to select a valuable method to calculate the daily energy expenditure of a group of sportsmen practising soccer, divided into two age groups, the first from 16 to 19 years old, the second from 20 to 29 years old, both compared with sedentary individuals. The method of daily activity recording has been utilized through which, by the time employed in each activity and using appropriate multiplication factors, it can be argued the energy expenditure. The daily energy intake and the body composition have been also calculated. The main results have been the following: the energetic expense is generally higher than the caloric intake, though either under weight situations or events of low physical performance have not occurred; the comparison of caloric intake, energy expenditure and body composition doesn't show significant differences neither in sportsmen and sedentary individuals nor between the different age groups; the use of daily activity recording, though enough reliable on a broad sample of individuals, needs however of being validated as an appropriate approach in the specific sport's field. Verf.-Referat