Effects of smoking and aerobic exercise on risk factors of metabolic syndrome among male college students / 中国学校卫生

ABSTRACT

Objective@#The aim of this study was to investigate the effects of smoking and aerobic exercise on metabolic syndrome risk factors among male college students.@*Methods@#Eighty male college students were randomly selected from Global Youth Tobacco Survey and assigned to exercise smoker(ES), non-exercise smoker(NES), exercise non-smoker(ENS) and non-exercise nonsmoker (NENS) groups with sample size of 20 in each group. Subjects in NES and NENS groups maintained daily lifestyle while those in ES and ENS group performed aerobic exercise 5 times per week for 8 weeks with exercise intensity set at 50%~80% of heart rate reserve. Before and after experiment, risk factors for metabolic syndrome were assessed including systolic blood pressure (SBP), diastolic blood pressure (DBP), waist circumference (WC), fasting plasma glucose (FPG), triglyceride (TG) and high-density lipoprotein cholesterol (HDL-C).@*Results@#After experiment, compared with ENS and NENS group, WC, SBP, DBP, FPG and TG increased while HDL-C decreased (P<0.05) in ES and NES groups. Compared with pre-experiment, SBP and DBP significantly decreased in ENS group(P<0.05), increased in NES group (P<0.05) while no statistically significant in ES and NENS group(P>0.05); WC was significantly reduced in both ES and ENS groups(P<0.05), increased in NES group (P<0.05) while no statistically significant in NENS group (P>0.05) after experiment. Compared with NES and NENS groups, △WC in ES and ENS group decreased (P<0.05); compared with other groups, △SBP and △DBP increased in NES groups while decreased(P<0.05) in ENS group.@*Conclusion@#Smoking is associated with higher level of metabolic syndrome risk factors, while aerobic exercise is associated with lowering blood pressure and WC level in male college students.