The Effect of Endurance-Resistance Exercise Duration on Selected Gonadotropins in Premenopausal Overweight Women

The present study was planned to investigate to describe the effect of the of endurance-resistance exercise duration on the serum levels of selected gonadotropins in premenopausal women. Having completed questionnaires and performed an initial survey, a total of 40 premenopausal women were randomly selected and assigned to four groups (Active group with 6-month physical activity, active group with one-year physical activity, active group with physical activity of more than one year, and control group). Blood samples were collected in the follicular phase and the serum levels of follicle stimulating hormone (FSH), estrogen (EG), and estradiol (ES) were measured. The data were analyzed using Pearson correlation coefficient, one-way ANOVA, independent T-test, and Tukey’s test. The results indicated that there is no significant relationship between the duration of physical activity and the serum level of FSH. The serum levels remained the same during all three lengths of physical activity and the control group. The serum level of EG and ES hormones of the physically-active groups had a significant inverse relationship with the length of the physical activity. While no significant differences were observed between the serums levels of these hormones in the active groups, the levels were still significantly lower in the control group. This might justify the effect of the duration of physical activity on lowering the EG and ES hormones.