نوع مقاله : مقاله پژوهشی
1 دانشیار، گروه علوم ورزشی، دانشکدة علوم تربیتی و روانشناسی، دانشگاه شهید مدنی آذربایجان، تبریز، ایران
2 دانشجوی دکتری، گروه تربیت بدنی و علوم ورزشی، دانشگاه محقق اردبیلی، اردبیل، ایران
3 کارشناس ارشد، گروه علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه شهید مدنی آذربایجان، تبریز، ایران
عنوان مقاله [English]
It seems that neurofeedback intervention with resistance training have an effect on changes in hormone levels related to body composition. Therefore, the aim of this study was to investigate the effect of single and combined resistance training with neurofeedback on serum levels of cortisol, sex hormone binding globulin and body composition indices in young males. Thirty young men were randomly assigned to resistance training (n = 10; mean±SD age, 20/2±2/05; BMI, 24/1±1/12), resistance training + neurofeedback (n = 10; mean±SD age, 20/5±2/21; BMI, 24/3±1/35), and control (n = 10; mean±SD age, 20/3±2/11; BMI, 24/1±1/12) groups. Intervention groups performed resistance training for eight weeks of (3 sessions per week / 60 minutes per session / with a gradual increase in intensity from 20-40% of a maximum repetition at the beginning to 85-90% at the end of sessions) or resistance + neurofeedback (They performed the resistance exercise with 30 minutes of electrical stimulation of the brain, including increasing and amplifying the alpha wave in the T3 region and amplifying the alpha and suppressing theta in the Pz region).In the pre- and post-test stages, levels of cortisol, sex hormone-binding globulin, and body composition indices were measured (p≤0.05). Serum cortisol levels of resistance training (p = 0.001) and resistance training + neurofeedback (p = 0.008) groups were significantly different from the control group. Sex hormone-binding globulin levels of resistance training + neurofeedback were significantly different from the control group (p = 0.001). The ratio of absolute levels of cortisol to sex hormone binding globulin in resistance training and resistance training + neurofeedback groups was significantly different from the control group (p = 0.001). Therefore, decreasing changes in cortisol levels in young men with resistance training + neurofeedback occur more than resistance training. However, sex hormone binding globulin levels increased in both resistance training + neurofeedback and resistance training groups.