Document Type : Research Paper I Open Access I Released under (CC BY-NC) license
Authors
1 Department of Physical Education and Sport Science, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
2 department of sport physiology,ayatollah amoli branch,,islamic azad university
Abstract
Aim: Changes in the hypothalamo-pituitary axis are probably related to changes in sex hormones. Physical training is one of the effective factors in the changes of this axis. purpose of this study was the effect of six weeks of ResistanceTraining on free Testosterone serum levels, sex hormones binding globuline, Inhibin b and luteinizing and follicle-stimulating hormone in obese men students. Methods: For this purpose, 20 obese male students with aged range of 20 ± 2 years participated in this study and divided randomly into 2 groups 10 people of resistance training and control. Resistance training was performed for six weeks and three sessions per week in %60 to %70 repetition maximun. In order to analyze the biochemical variables, blood samples were taken at two stages, 48 hours before and after of training period. Inter group and between changes of information were performed by dependent and independent t-test. Results: The results of this study showed that resistance training led to a significant increase in free testosterone serum concentration and a significant increase in SHBG in obese men. But after six weeks of training, there were no significant changes in inhibin b, luteinizing hormone and follicular stimulation hormone. Conclusion: six weeks of resistance training with improved body composition, upper and lower body muscle strength and also aerobic power are associated with changes in sex hormones in obese men.
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- Berensztein E, Saraco N, Belgorosky A, Rivarola M. Secretion of inhibin B by human prepubertal testicular cells in culture. European Journal of Endocrinology. 2000;142(5):481-5.
- Burger H. Inhibin: definition and nomenclature, including related substances. Journal of Endocrinology. 1988;117(2):159-60.
- Cadore EL, Izquierdo M, Dos Santos MG, Martins JB, Lhullier FLR, Pinto RS, et al. Hormonal responses to concurrent strength and endurance training with different exercise orders. The Journal of Strength & Conditioning Research. 2012;26(12):3281-8.
- Di Luigi L, Guidetti L, Baldari C, Romanelli F. Heredity and pituitary response to exercise-related stress in trained men. International journal of sports medicine. 2003;24(08):551-8.
- Grandys M, Majerczak J, Duda K, Zapart-Bukowska J, Sztefko K, Zoladz J. The effect of endurance training on muscle strength in young, healthy men in relation to hormonal status. J Physiol Pharmacol. 2008;59(Suppl 7):89-103.
- Grandys M, Majerczak J, Duda K, Zapart-Bukowska J, Kulpa J, Zoladz J. Endurance training of moderate intensity increases testosterone concentration in young, healthy men. International journal of sports medicine. 2009;30(07):489-95.
- Hammoud AO, Wilde N, Gibson M, Parks A, Carrell DT, Meikle AW. Male obesity and alteration in sperm parameters. Fertility and sterility. 2008;90(6):2222-5.
- Hawkins VN, Foster-Schubert K, Chubak J, Sorensen B, Ulrich CM, Stancyzk FZ, et al. Effect of exercise on serum sex hormones in men: a 12-month randomized clinical trial. Medicine and science in sports and exercise. 2008;40(2):223.
- Hu Y-A, Huang Y-F. A serum marker of spermatogenesis--inhibin B. Zhonghua nan ke xue= National Journal of Andrology. 2002;8(1):57-60.
- Koch B, Glaser S, Schaper C, Krebs A, Nauck M, Dorr M, et al. Association Between Serum Testosterone and Sex Hormone–Binding Globulin and Exercise Capacity in Men: Results of the Study of Health in Pomerania (SHIP). Journal of andrology. 2011;32(2):135-43.
- Kamischke A, Simoni M, Schrameyer K, Lerchl A, Nieschlag E. Is inhibin B a pharmacodynamic parameter for FSH in normal men? European journal of endocrinology. 2001;144(6):629-37.
- MacDonald A, Herbison G, Showell M, Farquhar C. The impact of body mass index on semen parameters and reproductive hormones in human males: a systematic review with meta-analysis. Human reproduction update. 2010;16(3):293-311.
- Maynar M, Timon R, González A, Olcina G, Toribio F, Maynar JI, et al. SHBG, plasma, and urinary androgens in weight lifters after a strength training. Journal of physiology and biochemistry. 2010;66:137-42.
- McCaulley GO, McBride JM, Cormie P, Hudson MB, Nuzzo JL, Quindry JC, et al. Acute hormonal and neuromuscular responses to hypertrophy, strength and power type resistance exercise. European journal of applied physiology. 2009;105:695-704.
- Nickmilder M, Bernard A. Associations between testicular hormones at adolescence and attendance at chlorinated swimming pools during childhood. International journal of andrology. 2011;34(5pt2):e446-e58.
- Osuna C J, Gomez-Perez R, Arata-Bellabarba G, Villaroel V. Relationship between BMI, total testosterone, sex hormone-binding-globulin, leptin, insulin and insulin resistance in obese men. Archives of andrology. 2006;52(5):355-61.
- Phillips AC, Gale CR, Batty GD. Sex hormones and cause-specific mortality in the male veterans: the Vietnam Experience Study. QJM: An International Journal of Medicine. 2012;105(3):241-6.
- Safarinejad MR, Azma K, Kolahi AA. RETRACTION: The effects of intensive, long-term treadmill running on reproductive hormones, hypothalamus-pituitary-testis axis, and semen quality: a randomized controlled study. Journal of Endocrinology. 2022;253(2):Z1-Z.
- Mansour SW, Sangi S, Harsha S, Khaleel MA, Ibrahim A. Sensibility of male rats fertility against olive oil, Nigella sativa oil and pomegranate extract. Asian Pacific journal of tropical biomedicine. 2013;3(7):563-8.
- Stewart J, Bickerton S, Betts CJ, Kirk S. Inhibin B in plasma samples from male volunteer panel selected for health but not fertility: Sources of variability. Birth Defects Research Part B: Developmental and Reproductive Toxicology. 2013;98(1):104-9.
- West DW, Phillips SM. Associations of exercise-induced hormone profiles and gains in strength and hypertrophy in a large cohort after weight training. European journal of applied physiology. 2012;112:2693-702.
- Williams N. Effect of moderate aerobic exercise combined with restriction on circulating estrogens and IGF-1 in premenopausal women: annual report summary. J Sport Sci Med. 2005;6:55-9.
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