Name Surname, Name Surname Sports University of Tirana, Albania email address The prevalence of obesity in children and current level of physical activity in a city in transition Introduction Materials and Methods Physical activity in declining in children………. The objectives of this study were to investigate the problem of overweight/obesity in children and to get knowledge about the level of VO₂ max and physical activity mode in children 11 and 14 years Cross sectional survey was apply in children (192 boys and 176 girls), randomly selected in different schools in Tirana. Questionnaire assessment (PA) and objective measurement of height and weight were obtained. Shuttle run test (20 m) was used to measure aerobic fitness. Statistics Analysis Figure 1. put ANOVA were applied for …………………………. Results Discussion The results from this research study reveal strong evidence that children in Albania show lower values of aerobic fitness. The problem of obesity should be a primary priority in the health care system implemented by the school and family intervention-based programs. Data show that the problem of overweight and obesity among children in Tirana does exist. The results revealed that the prevalence of overweight for the entire participants was 14 % and did change by gender and the prevalence of obesity was 4%. The great majority of the children (77 %) reported walking to and from school and the study indicates a decrease from age 11 to 14 years of the children reporting “never or hardly ever” taking part in organized sports. . Further implications This study …. Table 1 Comparison by gender and age for variables assessed in this study   Total Boys Girls F P value 11 yrs Weight kg 36.6 8.2 38.14* 9.2 35.2 7.0 7.56 0.01 Height m 1.45 0.06 0.07 1.44 2.07 0.15 BMI m/kg² 17.3 3.0 17.8* 3.2 16.8 2.8 6.59 VO₂ max ml/kg/min 29.3 6.0 29.6 7.1 29.0 4.5 0.45 0.51 14 yrs 52.3 9.5 53.2 8.9 51.2 10.1 2.62 0.11 1.62 1.64* 1.60 26.67 0.00 19.8 19.6 2.7 20.0 3.7 0.82 0.37 33.4 7.2 37.24* 7.3 29.4 4.7 58.42 Graph 1 Physical Activity