Introduction: Among children, one of the most serious public health challenges of the 21st century is childhood obesity, namely central obesity. This increases the risk of cardiovascular disease and diabetes. Studies show that, children who are physically active are less likely to have central obesity making it a key element in the prevention and treatment of both chronic diseases. Objectives: To assess the baseline knowledge and post-interventional knowledge of the students and teachers on the physical activity; to assess the utility and acceptability of the intervention module. Methods: An interventional study in 2 schools by administering tests prior to and after giving a class on the importance of physical activity and focused group discussion with teachers to assess the utility and acceptability of intervention. Data analysed using SPSS software, tabulated and interpreted by applying statistical tests. Results: Among the 120 students who participated, a significant increase in knowledge regarding the need for physical activity after health education was observed. Conclusion: Health education approach in schools was found to be effective and feasible in improving the knowledge and behavioural practices regarding physical activity among adolescents to reduce childhood obesity and to improve overall health.
