Purpose: Educating adolescents about energy balance (EB) is essential for effective weight control. This study utilized the Sensewear (SWA)armband and a diet journal to promote adolescents’ EB knowledge and motivation. Methods: Ninety sixth graders were randomly assigned into the experimental group (n ¼ 46) who utilized SWA and diet journal for 7 consecutive days or the control group (n ¼ …