AU - Weiyun Chen. AB - This study examined the elementary school children’s determinants of physical activity intention and participation out-of-school using Self-Determination Theory and Theory of Planned Behavior as the theoretical framework for this study. Four hundred sixty-eight elementary school students voluntarily completed the Determinants of Physical Activity Participation Inventory (DPAPI) designed for this study. The participants reported that they spent an average of 170-minutes participation in physical activity at a vigorous (breathing hard) level and held positive attitude toward, perceived control of, and intention for physical activity participation. The participants’ motivational profile reflected the desirable motivational characteristics. The multiple regression analysis confirmed the premises of the proposed theoretical model for this study. (Published abstract) http://search.shamaa.org/abstract_en.gif ID - 021409 OP - pp. 70-87 T1 - The effect of self-determination and theory planned behavior on elementary students' physical activity participation [Article]