This study aims to assess the role of physical education in improving physical fitness of students at the junior high school level. Data were obtained through physical fitness tests before and after the physical education program. The results showed that there was a significant increase in students' physical fitness after participating in a structured physical education program.

This study aims to determine the effectiveness of a structured physical exercise program in improving heart health in adolescents. The exercise program included aerobic activities and cardiovascular endurance training for 8 weeks. The results showed a significant increase in heart capacity and stamina of participants, as well as a decrease in blood cholesterol levels in adolescents who participated in the program.