RESUMO
With coronavirus disease-2019 (COVID-19) pandemic restrictions and lockdown, children and adolescents have experienced emotional and physical isolation from family and community members. This isolation has a negative impact on children's and adolescents' mental health, physical health, and behavior. An online cross-sectional study of children and adolescents aged 5 to 11 years was conducted to assess the effect of the COVID-19 pandemic on their behavior, emotions, and sleep routines. A total of 413 participants, with a mean age of seven (217 boys and 195 girls), were included in the study. Most of the children were in primary school and lived with both parents. Boys and older children were found to have been fatigued during the pandemic. A significant association was found between the participants' age and regression, opposition, and adaptation behaviors. A significant increase in screen usage and decrease in children's physical activity after the outbreak were noted. The COVID-19 pandemic has negatively affected children's and adolescents' psychosocial, behavioral, and physical habits. Government programs to support the mental and psychological well-being of children and adolescents should be encouraged. Social communication, physical activity, and collaborative games are also important factors.
