Physical activity provides important physical, mental and social benefits. In children and adolescents, participation in physical activity is associated with improved musculoskeletal, cardiovascular, and mental health systems, including reducing anxiety and depression. The study aims to support the development of health promotion in school-age children. During March-April 2019 in three cities in Albania we conducted a transversal study with children aged 11 and 13 years. The total number of participants in the study was 1804, out of which 39 were excluded because they were unreliable and 87 were inaccurate in formulation. The participation rate in the study was 1678/1804 = 93%. Anthropometric measurements of children were performed via removable scale and stadiometer. Measuring weight was carried by the weighing scale accuracy ± 100 gr. and measuring capacity 200 kg and measuring the length of stadiometer removable scale accuracy of ± 1 mm. and the measurement interval from 20-205 cm. It measured 1660/1804 = 92% of the children participating. All data analysis was performed using SPSS (Statistical Package for Social Sciences) version 22.0. Reported 87 children (5.2%) that were not developed in any physical activity 7 days a week, 415 (24.7%) stated that they had developed physical activity 1-2 days, while 1176 (70.1%) children reported that they had developed physical activity at least three days of the week. In terms of body mass index categories, 137 (8.3%) of the children were underweight, 1209 (72.8%) had a normal body weight, 236 (14.2%) were overweight, and 78 (4.7%) of the children were obese. Our study found that boys perform more physical activity than girls, and the level of physical activity decreases with age. Attempts to lose weight or to keep the diet resulted more evident in girls than in boys. This behavior was more pronounced with increasing age.