Variety and Frequency of YPAQ activities and physical activity characteristics of boys and girls measured at baseline and follow-up.

Data are presented as mean ± standard deviation.
Differences between girls and boys (p-value for sex differences) and differences between baseline and follow-up measurements (p-value for wave differences) were determined using multilevel linear regression.
*P-value for wave x sex interaction.
YPAQ, youth physical activity questionnaire; TPA, total physical activity; cpm, counts per minute; MVPA, moderate-to-vigorous intensity physical activity.