Gråstén, Arto, Sami Yli-Piipari, Mikko Huhtiniemi, Kasper Salin, Sanni Seppälä, Jukka Lahti, Harto Hakonen, and Timo Jaakkola. “Predicting Accelerometer-Based Physical Activity in Physical Education and Total Physical Activity: The Self-Determination Theory Approach”. Journal of Human Sport and Exercise 14, no. 4 (December 2, 2019): 757–771. Accessed April 18, 2024. https://www.jhse.ua.es/article/view/2019-v14-n4-predicting-accelerometer-based-physical-activity-phy.