RESUMO
We investigated how emotional responses (positive and negative affect), physical activity (PA), and sedentary behaviors related to anxiety among US children during the COVID 19 pandemic. Sixty four typically developing children (63% girls) age 9 to 15 years old completed two virtual visits during height of stay at home measures between April 22 to July 29, 2020. Children completed 24 hour PA recalls, state portion of State-Trait Anxiety Inventory for Children (STAIC), and the shortened 10 item Positive and Negative Affect Schedule for Children (PANAS C). Children reported state anxiety scores that were more than 5 standard deviations greater than values from healthy pediatric populations prior to the pandemic. Children with higher positive affect and who reported more time in PA reported less state anxiety. Sedentary and leisure screen time were positively correlated with negative affect. Our findings suggest that maintaining positive affect, engaging in PA, and limiting leisure screen time may be important for child mental health during stressful periods.