Objectively measured physical activity and sedentary time in European adolescents: the HELENA study.

MLA

Ruiz, Jonatan R., et al. “Objectively Measured Physical Activity and Sedentary Time in European Adolescents: The HELENA Study.” American Journal of Epidemiology, vol. 174, no. 2, July 2011, pp. 173–84. EBSCOhost, https://doi.org/10.1093/aje/kwr068.

APA

Ruiz, J. R., Ortega, F. B., Martínez-Gómez, D., Labayen, I., Moreno, L. A., De Bourdeaudhuij, I., Manios, Y., Gonzalez-Gross, M., Mauro, B., Molnar, D., Widhalm, K., Marcos, A., Beghin, L., Castillo, M. J., & Sjöström, M. (2011). Objectively measured physical activity and sedentary time in European adolescents: the HELENA study. American Journal of Epidemiology, 174(2), 173–184. https://doi.org/10.1093/aje/kwr068

Chicago

Ruiz, Jonatan R, Francisco B Ortega, David Martínez-Gómez, Idoia Labayen, Luis A Moreno, Ilse De Bourdeaudhuij, Yannis Manios, et al. 2011. “Objectively Measured Physical Activity and Sedentary Time in European Adolescents: The HELENA Study.” American Journal of Epidemiology 174 (2): 173–84. doi:10.1093/aje/kwr068.