Brazendale, K, Beets, M W, Armstrong, B, Weaver, R G, Hunt, E T, Pate, R R, Brusseau, T A, Bohnert, A M, Olds, T, Tassitano, R M, Tenorio, M C M, Garcia, J, Andersen, L B, Davey, R, Hallal, P C, Jago, R, Kolle, E, Kriemler, S, Kristensen, P L, Kwon, S, Puder, J J, Salmon, J, Sardinha, L B, van Sluijs, E M F & On behalf of the International Children's Accelerometry Database (ICAD) Collaborators 2021, ' Children's moderate-to-vigorous physical activity on weekdays versus weekend days: a multi-country analysis ', International Journal of Behavioral Nutrition and Physical Activity, vol. 18, no. 1, 28 . https://doi.org/10.1186/s12966-021-01095-x 18:28 International Journal of Behavioral Nutrition and Physical Activity International Journal of Behavioral Nutrition and Physical Activity, Vol 18, Iss 1, Pp 1-13 (2021) Jago, R, Brazendale, K, Beets, M, carolina, U O, Weaver, R G, carolina, U O, carolina, U O, Brusseau, T A, Bohnert, A, Olds, T, Tassitano, R M, Rural, F, Florida, U O, Andersen, L B, Davey, R, Hallal, P, Kolle, E, Kriemler, S, Kristensen, P L, Kwon, S, Puder, J J, Salmon, J, Sardinha, L B & van Sluijs, E M F 2021, ' Children’s moderate-to-vigorous physical activity on weekdays versus weekend days : A multi-country analysis ', International Journal of Behavioral Nutrition and Physical Activity, vol. 18, no. 28, 28 (2021) . https://doi.org/10.1186/s12966-021-01095-x The International Journal of Behavioral Nutrition and Physical Activity