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Background: Exercise is a factor that influences hormonal system. Therefore, the impact of one session concurrent severe resistance-endurance training with different orders was studied on serum cortisol, testosterone, insulin, and insulin-like growth factor (IGF-1) in female athletes.
Materials and methods: In this quasi-experimental study, from 20 volunteer healthy female body-builders of the city of Rash (mean age of 26.60±3.50 years and weight of 57.40±5.21 kg) 10 individuals were sampled purposively. The resistance training was carried out at 75–85% of 1 repetition maximum immediately followed by endurance training for 30 minutes using ergometer with 75-85% of maximum heart rate at one session. The blood sample was taken six times including before the training, immediately after resistance training, and after endurance training. Data were analyzed by analysis of Two-way analysis of variance with repeated measures. p<0.05 was set as significant level.
Results: There were no significant differences in six levels of exercise in cortisol (p=0.13), testosterone (p=0.09), insulin (p=0.11), and IGF-1 (p=0.13).
Conclusion: It seems that order of intense resistance and endurance exercises does not affect the response of cortisol, testosterone, insulin and insulin-like growth factor (IGF-1) to athlete's women. Therefore, one session exercise training with the desired intensity is not an effective strategy for hormonal changes in athletic girls.