the effect of short time circuit-resistance exercise with different intensities on gh/igf-i growth axis in young healthy university men

the purpose of this study was to evaluate the effect of short time circuit-resistance exercise with difference intensities on ghi/igf-i growth axis in healthy male students. for this purpose, 27 male students with mean and standard deviation of age 21.40±1.78 yr, height 172±0.45 cm, weight 68.85±5.39 kg were selected and randomly divided into three resistance exercise groups (each group, 9 subjects) with intensity of 40%,60%, 80%1rm. resistance circuit exercise program included 10 sessions. one-way anova and paired t test were used to analyze data in spss software. analysis of data showed that circuit resistance exercise with intensity of 40%, 60%, 80% 1rm had a significant effect on gh. also, circuit resistance exercise with intensity of 40% had a significant effect on igf-i. it can be concluded that the intensity of one session of circuit resistance exercise can have incremental and different effects on gh and igf-i.