The purpose of this study was to determine whether externally applied resistance to chest wall expansion during exercise training will improve the exercise capacity or not. Methods: One hundred healthy, non-active adults volunteer were included for the study with age group between 20-30 years. Both the groups performed aerobic exercise three days a week up to 35-40 minutes. The exercise testing was performed by using Bruce protocol to predict VO2 max value. Time to exhaustion and PFT were calculated. Results showed that VO2max and time to exhaustion improved significantly after twelve weeks of aerobic training for both the groups. Conclusion: Training with thoracic band exercise significantly increased aerobic capacity. Time-to-exhaustion significantly increased in chest wall constriction group after twelve weeks than the non chest wall constriction group.

Key word: Functional Capacity, Vo2 max, Pulmonary function, Chest wall constriction