earticle

영어

Few studies have shown the impact of unhealthy habits on arterial stiff-ness, respiratory muscle strength and exercise performance in early normal weight adulthood. This study sought to determine the effects of physical activity and smoking on its parameters in normal weight male participants. Forty-eight participants were divided into four groups: phys-ically inactive nonsmokers and smokers and physically active nonsmok-ers and smokers (n=12 in each group). All of the participants were mea-sured for body composition, arterial stiffness, respiratory muscle strength and exercise performance. Two-way analysis of variance design was used to test the main and interaction effects of physical activity by group (smokers vs. nonsmokers). P-value of less than 0.05 was considered as a statistically significant difference. As a result, cardio-ankle vascular index and respiratory muscle strength were diminished in smokers and physically inactive participants, while body and visceral fat mass were increased in both those groups. Fat-free mass was lower in only physi-cally inactive participants. This study also found the interaction effects on body fat and arterial stiffness. In conclusion, participants with healthy normal weight, but smoked and performed inappropriate physical activ-ity, exhibited body composition imbalance, decreased respiratory mus-cle strength, exercise performance, and increased arterial stiffness. Therefore, smoking cessation and exercise in younger adults are appro-priate ways of improving body composition, respiratory muscle strength, aerobic capacity and arterial stiffness instead of trying to control their weight by smoking.