Sazetak -Istrazivali smo uticaj fizicke aktivnosti. duzine gledanja televizije i rada za kornpjuterorn na indeks telesne rnase dece i adolescenata u regionu Banje Luke. Istrazivanje je obuhvatilo 1 204 ucenika uzrasta od 6 do 17 godina, 578 decaka i 626 devojcica, Zajedno sa roditeljima ispitanici su popunili anketu 0 fizickoj aktivnosti. duzini gledanja televizijskog programa i duzini rada za kompjuterorn. Utvrdeno je 12.2% umereno gojaznih i 6.1% gojaznih. Pokazan je pozitivan uticaj

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... e fizicke aktivnosti na normalan indeks telesne mase kod devojcica (p<O.OOI) i decaka (p<O.05). Sedcntarni zivotni sti!. tj. visecasovno gledanje televizije znacajno je povezano sa povisenirn indeksorn telesne mase ked devojcica (p<O.05). Upotreba kornpjutera 2 sata ria dan. povezana je sa povecanirn indeksorn telesne mase kod decaka (p<O.05). Rezultati nase studije dokazuju da su intenzivna fizicka aktivnost i sedentarni iivotni stil znacajne determinante i faktori rizika u razvoju umerene gojaznosti i gojaznosti u detinjstvu. Kljucne rec]: Indeks telesne rnase: Fizicka aktivnost: Gojaznost: Dete: Adolescent: Zivotni stil Summary -The correlation between physical activity and sedentary life style was investigated as a determinant a/the body moss index in children and adolescents in Banjaluka region. The study involved J204 children and adolescents, 6-J7 years old, 578 boys, 626 girls. B:\';[[ was calculated from their height and weight using standard formula. Each child. together with their parents answered the questions considering their level of involvement in physical versus sedentary activities. Physical activity was defined as involvement in sports activities, while sedentary life style was defined as time spent on computer, games, video, and TV The prevalence of overweight and obesity were 12.2% and 6. I % in our studv group. Increased physical activity showed strong positive correlation with normal, lower BJ11 in boy's (p<O, (5), and girls (p<OJJO I). Sedentary lifestyle, prolonged T!' watching was strongly associated with increased Blf! only in girls (p: 0.(5). However, computer lise for] hours/day WClS strongly associated with increased B.\;[j (p<O.05) onlv in boys, although computer use for more than 3 hours/day was asssociated with lower BMI in boys Physical activity and sedentary lifestyle are significant determinants ofBMI and risk factors in developing overweight and obesity in childhood, as shown in our study.