ABSTRACT
Introduction: In Colombia from March 24 to August 31, 2020, children and adolescents spent 162 days in total mandatory preventive isolation due to the Covid-19 pandemic. Objective: To know and evaluate their behavior of children and adolescents during this period of confinement in order to establish the consequences on the physical activity and weight gain. Methods: An open virtual survey was developed on the Google survey platform, addressed to parents with 5 questions: 1. How old is your child: 2. How many minutes of physical activity at home do you do? 3. How many minutes of screens (TV, computer, cell phone, video games, etc.) her or she watch per day? 4. How many hours does he or she sleep at night? 5. Has your child's body weight increased? How much? This survey was distributed in the databases of the Association of Sports Medicine and the Colombian Heart Foundation through social networks such as WhatsApp and emails. Results: 1,139 virtual surveys were conducted. It was found that during the mandatory isolation period: 75.2% of the children did not perform the minutes of physical activity recommended by the World Health Organization (WHO), that 82.8% exceeded the time of 60 minutes versus to electronic devices and that 44% weight gained. Conclusions: In periods of confinement, it is important to design educational strategies and processes that promote healthy lifestyles in children that can be preserved in the future in adults.