اثر تمرین مقاومتی با دو حجم متفاوت بر مقادیر سرمی هورمون‌های جنسی و برخی از پارامتر-های سیمن موش‌های صحرایی نر

نوع مقاله: مقاله پژوهشی

نویسندگان

1 کارشناس ارشد فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه مازندران، بابلسر، ایران.

2 دانشیار گروه فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه مازندران، بابلسر، ایران.

3 استادیار زیست شناسی تکوینی، دانشکده علوم پایه، دانشگاه مازندران، بابلسر، ایران.

چکیده

زمینه وهدف: مطالعات نشان داده­اند که ورزش هوازی منظم باروری را بهبود می­بخشد. با این وجود نتایج تحقیق­ها در رابطه با تاثیر تمرین مقاومتی بر باروری متناقض است. بنابراین هدف از این مطالعه، بررسی اثر تمرین مقاومتی با دو حجم متفاوت بر مقادیر سرمی هورمون­های جنسی و برخی از پارامتر­های سیمن موش­های صحرایی نر است. روش تحقیق: بیست و چهار سر موش صحرایی نر نژاد ویستار با میانگین وزن 6/7±7/157 گرم به طور تصادفی به 3 گروه (۸ سر در هر گروه) کنترل، تمرین مقاومتی با حجم بالا و پایین تقسیم شدند. برنامه تمرین مقاومتی شامل بالارفتن از نردبان ۳ روز در هفته و به مدت ۸ هفته بود. وزن بدن، غلظت سرمی تستوسترون (Ts)، هورمون تحریک کننده فولیکولی (FSH) و هورمون لوتئینی (LH) اندازه‏گیری شد و تعداد و کل حرکات اسپرم نیز محاسبه گردید. داده­ها با استفاده از آزمون تحلیل واریانس یک طرفه و آزمون تعقیبی بونفرونی در سطح معنی­داری 05/0>p بررسی شدند. یافته­ ها: بعد از 8 هفته تمرین مقاومتی با حجم بالا سطوح سرمی  LHدر مقایسه با گروه کنترل پایین­ تر بود (03/0=p). مقادیر سرمی FSH در گروه تمرین مقاومتی با حجم پایین به طور معنی داری در مقایسه با گروه تمرین مقاومتی با حجم بالا سطوح بالاتری داشت (009/0=p). در بین گروه­ها سطوح سرمی تستوسترون، مقادیر وزن بدن، همچنین تعداد اسپرم و کل حرکات آن تفاوت معنی­داری مشاهده نشد (05/0<p). نتیجه­ گیری: طبق یافته­ های تحقیق حاضر به نظر می­رسد افزایش نامناسب در حجم تمرینات مقاومتی می­تواند موجب کاهش سطوح سرمی برخی هورمون‌های جنسی شود. از این رو ممکن است منجر به اختلال در روند اسپرماتوژنز گردد.

کلیدواژه‌ها


عنوان مقاله [English]

The effects of resistance training with two different volumes on some semen parameters and serum levels of sex hormones in male rats

نویسندگان [English]

  • Ramin Mehmandoost 1
  • Alireza Safarzade 2
  • Fereshteh Mir-Mohammadrezaei 3
1 MSc in Exercise Physiology, Faculty of Sport Sciences, University of Mazandaran, Babolsar, Iran.
2 Associate Professor, Department of Exercise Physiology, Faculty of Sport Sciences, University of Mazandaran, Babolsar, Iran.
3 Assistant professor, Department of Developmental Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran.
چکیده [English]

Background and Aim: Previous studies have shown that regular aerobic exercise improves fertility. However, there were conflicting results regarding the effect of resistance training on fertility. The aim of this study was to investigate the effects of resistance training (RT) with two different volumes on some semen parameters and serum levels of sex hormones in male rats. Materials and Methods: Twenty-four male Wistar rats (157.7±7.6 gr) were randomly divided into 3 groups; Control, High Volume RT, Low volume RT (8 rats in each group). The resistance training program included climbing the ladder for 8 weeks (3 days/week, every other day). Body weight, serum concentrations of testosterone (Ts), Follicle Stimulating Hormone (FSH) and luteinizing hormone (LH) were measured as well as the number and total sperm motility was calculated. Data were analyzed using one-way ANOVA and Bonferroni post hoc tests at the significant level of pResults: After eight weeks of resistance training serum levels of LH in High volume RT group were lower compared with control group (p=0.03). Higher levels of FSH in Low volume RT group was found compared with High volume RT group (p=0.009). There were no significant differences between groups in serum levels of testosterone, body weight values, number and total sperm motility) P>0.05). Conclusion: According to these results, it seems that a disproportionate increase in resistance training volume can lead to decrease the levels of some sex hormones. Therefore, it may lead to disruption of the spermatogenesis.

کلیدواژه‌ها [English]

  • Sperm count
  • resistance training
  • Sperm motility
  • Sex hormones
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