Background: Regular physical activity of different intensity has many significant benefits on the health of all ages, particularly adolescents. School-based educational programs about physical activity were found to increase the level of physical activity among adolescents positively. However, among adolescents in Jordan, few studies measured the impact of school-based educational programs on students' level of physical activity and knowledge, and there is no single study that measured the students' physical activity self-efficacy.~Aim: To assess the effectiveness of a school-based physical activity program on adolescents' knowledge of physical activity, physical performance, and physical self-efficacy.~Methods: A Randomized Control trial (RCT) design was used among 210 8th grade school students (boys and girls) from four governmental schools in North of Jordan during December and January. Physical Activity Questionnaire for older children (PAQ-C) scales, Physical self-efficacy scale, and Knowledge of Physical Activity scale were used to collect students' data. The duration of the educational program was four weeks, with a total of 7 hours. Ethical approval was approached from the Committee on Human Subjects Research at Jordan University of Science and Technology and the Ministry of Education before the data collection.
Regular physical activity of different intensity has many significant benefits for all ages, particularly adolescents. School-based educational programs about physical activity were found to increase the level of physical activity among adolescents positively. However, among adolescents in Jordan, few studies measured the impact of school-based educational programs on students' physical activity and knowledge levels. There is no single study that measured the students' physical activity self-efficacy. The study aimed to assess the effectiveness of a school-based physical activity program on adolescents' knowledge of the physical activity, physical performance, and physical self-efficacy. A Randomized Control trial (RCT) design was used among 210 8th grade school students (boys and girls) from four governmental schools in North of Jordan .