Author(s): K Niranjan and PK Senthil kumar

Abstract:

Aerobic and strength training with lifestyle modification can significantly improve cardiopulmonary health in overweight men. Adding a dietary component as a lifestyle modification enhances the positive effects on weight loss and cardiorespiratory fitness (CRF). Lifestyle modification may further amplify these adaptations, yet comparative evidence in overweight Indian men remains limited. The purpose study was to examine the Combined Effect of Aerobic and Strength Training with and without Lifestyle Modification on Selected Cardiopulmonary Parameters among Overweight Men.

Methods: Sixty overweight men aged 30-35 years (BMI 25-29.9 kg/m²) were randomly divided into three groups: Group I - Combined Aerobic and Strength Training with Lifestyle Modification (n=20); Group II - Combined Aerobic and Strength Training without Lifestyle Modification (n=20); and Group III - Control (n=20). The experimental groups underwent a structured 12-week program (5 sessions/week: 3 aerobic, 2 strength). Cardiopulmonary parameters such as Respiratory Exchange Ratio (RER), Total Lung Capacity (TLC), and Breath Frequency (BF) were assessed pre- and post-intervention using a Metalyzer-B Cardiopulmonary Analyzer. Data were analyzed using paired ‘t’ tests and between-group differences were assessed using analysis of covariance (ANCOVA).

Results: The results proved that there was significant improvements (p<0.05) were observed in both experimental groups, with Group I showing greater enhancement across all parameters. Respiratory Exchange Ratio (RER) decreased by 7.67% and 4.07% respectively, reflecting improved fat oxidation. Total Lung Capacity (TLC), increased by 2.63% (G I) AND 1.73% (G II), and Breath Frequency (BF) by 17.29% and 14.77%. The control group showed no significant change.

Conclusion: Twelve weeks of combined aerobic and strength training effectively improved cardiopulmonary parameters among overweight men. Lifestyle modification further amplified these adaptations, highlighting the value of integrated interventions for optimizing health.

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