Brain derived neurotrophic factor of adolescents not improved after 8 weeks resistance training

Subject Areas : Journal of Physical Activity and Hormones

Fatemeh Dalaeli ¹ , Rahim Shirazi-nezhad ²

1 - Department of Exercise physiology, Shiraz branch, Islamic Azad University, Shiraz, Iran
2 - Department of Exercise physiology, Shiraz branch, Islamic Azad University, Shiraz, Iran

Received: 2017-05-30 Accepted : 2017-07-23 Published : 2017-09-01

Keywords: Resistance training, adolescents, BDNF, Brain health,

Abstract :

Introduction: Although the benefits of physical activity on cardiovascular health are well known, recent evidence demonstrated that exercise may promote brain health by increases brain derived neurotrophic factor (BDNF); however it is still unclear. The purpose of this study was to examine the effects of 8 weeks resistance training on serum BDNF levels in adolescents. Material & Methods: Twenty four adolescents (age, 16 to 18 years) were randomly assigned to one of the training group (n=12) or control group (n=12). The training group was performed resistance training 3 days a week for 8 weeks in 2-3 sets with 12-15 maximal repetitions at 60-75% of 1-RM in each station. Biochemical parameters were measured before and 48h after the last session of training. Results: The results indicated that body fat percent decreased after 8 weeks resistance training (P<0.05); however, serum BDNF had no significant changes after the intervention. Conclusions: Serum BDNF level was not affected by 8 weeks resistance training in the adolescents.

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