The Effects of Aerobic Training and Caffeine Consumption on the Quality of Life and Life Expectancy of Overweight Men

Introduction: Inappropriate diet and inactivity are the leading causes of overweightness and obesity, which adversely affect physical and mental health. The present study aimed to investigate the effects of eight weeks of caffeine supplementation and aerobic training on the quality of life and life expectancy of overweight men. Methods: This quasi-experimental study was conducted on 60 overweight men aged 40-60 years with the body mass index of ≥30 kg/m^2, who were randomly divided into four groups, including control, caffeine supplementation (Ca), aerobic training (AT), and Ca+AT. Aerobic training was performed three times per week for eight weeks, and the duration of each session was 25-40 minutes at 60-80% of the maximal heart rate. The caffeine supplementation groups consumed 5 mg/kg of caffeine daily in two servings. The research variables were evaluated using the quality of life and life expectancy questionnaires. Data analysis was performed in SPSS using univariate analysis of covariance at P≤0.05. Results: Aerobic training increased the total score of quality of life (P≤0.05), mental health (P≤0.05), and life expectancy (P≤0.05) in the overweight men. Caffeine supplementation also increased the total score of quality of life (P≤0.05). In addition, the scores of quality of life and the subscales and life expectancy score in the Ca+AT group were significantly higher compared to the control (P≤0.05), training (P≤0.05), and caffeine supplementation groups (P≤0.05). Conclusion: According to the results, aerobic training was more effective than caffeine consumption in improving the quality of life and life expectancy. However, the interaction between aerobic training and caffeine consumption was considered more effective than aerobic training and caffeine consumption alone in improving the quality of life and life expectancy.