Abstract This study aimed to examine the effectiveness of structured conditioning programs in improving aerobic fitness levels among secondary school students aged 14 to15 years. Aerobic fitness, an essential component of physical health and academic performance in adolescents, was assessed using the multistage shuttle run test (beep test), a widely recognized and practical field-based measure of cardiorespiratory endurance. A total of participants were divided into two groups: an experimental group that underwent a structured conditioning program and a control group that followed regular physical education activities. The structured conditioning program consisted of systematically planned and progressively intensified exercises designed to enhance cardiorespiratory endurance over a defined training period. Pre- and post-test assessments were conducted using standardized beep test procedures, which involve continuous running between two markers set 20 meters apart in synchronization with audio signals that gradually increase in speed. To determine the effectiveness of the intervention, the collected data were analyzed using the t-ratio (independent and paired t-test). The results revealed a statistically significant improvement in aerobic fitness levels among students who participated in the structured conditioning program compared to those in the control group. The findings indicate that structured and progressive training methods are more effective in enhancing endurance capacity than conventional physical education practices. In conclusion, the study highlights the importance of incorporating structured conditioning programs into school physical education curricula to improve aerobic fitness and promote long-term health benefits among adolescents. These results provide valuable insights for educators and curriculum planners aiming to optimize physical fitness outcomes in secondary school settings. Keywords: Structured conditioning, Aerobic fitness, Multistage shuttle run test, Beep test, Secondary school students Top of Form Citation John Antony Joseph, G. Balasundar, Martin Koh, Elizabeth Tay “Comparative Analysis of Structured Conditioning on Aerobic Fitness Levels among Secondary School Students” International Journal of Current Science Research (IJCSR) e-ISSN: 2454-5422: 12(4): 2026: 66 -73
John Antony Joseph, G. Balasundar, Martin Koh, Elizabeth Tay (2026) studied this question.