• Valeria Calabriano, Fernanda Carrasco-Marín, Natalia Ulloa, Alberto Dávalos, María Belén Ruiz-Roso, Carlos Celis-Morales, and Miquel Martorell.
• Departamento de Nutrición y Dietética, Universidad de Concepción, Concepción, Chile.
• Rev Med Chil. 2022 Apr 1; 150 (4): 483-492.

BackgroundConfinement is an effective measure to control COVID-19, but it can have repercussions on lifestyle-related behaviors, especially among adolescents. Poor quality diet and low physical activity could trigger weight gain and the appearance of chronic non-communicable diseases at an early age.AimTo investigate the changes in eating and physical activity patterns before and during the first COVID-19 confinement in Chilean adolescents.Material And MethodsChilean adolescents aged between 10 and 19 years were invited to answer an online survey with 47 questions about dietary habits and physical activity.ResultsThe survey was answered by 420 participants and only four adolescents declined to answer it. Changes in eating patterns were evidenced, such as an increase in lunch consumption from 54.1 to 83%, and a decrease in the consumption of both healthy and unhealthy foods. Also, significant changes were observed in physical activity patterns, and an increase in the time spent sitting, from 4.7 to 5.8 hours during confinement.ConclusionsThe first confinement for COVID-19 modified eating and physical activity patterns in Chilean adolescents towards unhealthy habits, which if maintained, could negatively affect their health and quality of life.

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