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Medicina dello Sport 2021 June;74(2):269-83

DOI: 10.23736/S0025-7826.21.03861-8

Copyright © 2021 EDIZIONI MINERVA MEDICA

language: English, Italian

The effect of 12 weeks of concurrent training on hypothalamic-pituitary-gonadal axis hormones and semen fertility indices of sedentary obese men

Amin MOMBEYNI, Saeid SHAKERIAN , Abdolhamid HABIBI, Mohsen GHANBARZADEH

Department of Exercise Physiology, Faculty of Sport Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran


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BACKGROUND: Obesity is one of the causes affecting sperm quality and male infertility. The present study investigates the effect of 12 weeks of concurrent training on hypothalamic-pituitary-gonadal axis hormones and semen fertility indices of sedentary obese men.
METHODS: In the present study, 24 obese men with a Body Mass Index (BMI) above 30 kg/m2 were divided into two groups of exercise and control randomly. The training group performed a 12-week concurrent training program including endurance running with 45% to 85% of maximum heart rate and resistance training with 50% to 85% of one-repetition maximum. To observe the principle of overload, 5% was added to the intensity of training every week. Evaluation of semen quality was performed through the computer-aided sperm analysis software (CASA). Serum levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone, estradiol, estrogen, and prolactin were measured by ELISA.
RESULTS: At the end of the 12-week training period in the exercise group, mobility (P=0.03), progressive movement (P=0.01) and morphology (P=0.04) increased significantly. Also, the amount of FSH (P=0.04) and LH (P=0.03) increased and decreased, respectively. In the difference between groups, only morphology (P=0.02) and LH (P=0.00) increased and decreased, respectively.
CONCLUSIONS: Twelve weeks of endurance-resistance training improved the quality of semen in obese adults, which may be explained by the improvement of some reproductive hormones and sperm parameters following weight loss, fat content, and improved body composition.


KEY WORDS: Obesity; Exercise; Fertility; Semen analysis; Endurance training; Resistance training

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