نوع مقاله : مقاله پژوهشی Released under CC BY-NC 4.0 license I Open Access I
نویسندگان
1 کارشناس‌ارشد فیزیولوژی ورزش، دانشکدۀ علوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران
2 استاد تمام گروه فیزیولوژی ورزش، دانشکدۀ علوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران
3 دکتری تخصصی فیزیولوژی ورزش، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه تهران، تهران، ایران
چکیده
تمرینات کاتسو تمرینی مفید و مؤثر برای بهبود فاکتورهای جسمانی مختلف بوده و با آسیب و التهاب عضلانی کمتری همراه است. ازاین‌رو هدف از تحقیق حاضر مقایسۀ اثر دو روش تمرینی کاتسو و عدم محدودیت جریان خون بر تغییرات هورمون رشد، IGF-1 و سطح لاکتات مردان جوان سالم بود. این تحقیق از نوع تحقیقات نیمه‌تجربی با طرح اندازههای تکراری و همچنین استفاده از روش موازنه بود. در این مطالعه 10 مرد جوان 25 - 20 ساله با نمایه تودۀ بدنی 36/21 کیلوگرم بر متر مربع به‌صورت فراخوان عمومی انتخاب شدند. 72 ساعت پس از تعیین یک تکرار بیشینه (1RM) افراد و همچنین ارزیابی فشار خون عضلات ناحیۀ ران، اولین جلسۀ تمرین مقاومتی کاتسو آغاز شد. سپس با گذشت یک هفته از اولین جلسۀ تمرین کاتسو، همان افراد تمرین مقاومتی بدون محدودیت جریان خون را انجام دادند. به‌منظور بررسی متغیرهای مورد نظر از افراد در سه وهلۀ متفاوت نمونهگیری خونی به‌عمل آمد. نتایج نشان داد که سطوح لاکتات و هورمون رشد در هر دو گروه و طی وهله‌های دوم به‌طور معناداری افزایش می‌یابد (05/0 P <). با وجود این، نتایج بیانگر آن بود که بلافاصله پس از فعالیت ورزشی، IGF-1 طی تمرین کاتسو نسبت به تمرین بدون محدودیت به‌طور معناداری افزایش می‌یابد (05/0>P). از این نتایج چنین برمی‌آید که الگوی تغییرات غلظت لاکتات خون و هورمون رشد در هر دو گروه شبیه به هم بود. ضریب همبستگی پیرسون بین سه فاکتور نیز نشان داد که تنها ارتباط بین hGH و لاکتات گروه تمرین کاتسو معنادار است. همچنین تمرین کاتسو به افزایش معنادار IGF-1 نسبت به گروه دیگر منجر شده بود.
کلیدواژه‌ها
عنوان مقاله [English]
The Effect of KAATSU Acute Resistance Training on Growth Hormone, Insulin-Like Growth Factor-1 and Lactate in Healthy Young Men
نویسندگان [English]
- Faeze Heydari 1
- Seyyed Reza Attarzadeh Hosseini 2
- Sadegh Abbasian 3
1 MSc of Exercise Physiology, Faculty of Sport Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
2 Professor, Department of Exercise Physiology, Faculty of Sport Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
3 Ph.D. of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
چکیده [English]
KAATSU training is effective and beneficial to improve different physical factors and is associated with lower muscular injury and inflammation. So, the aim of this study was to compare the effect of KAATSU training and no blood flow restriction on changes of growth hormone, insulin-like growth factor-1 and lactate in healthy young men. This study was semi-experimental with a repeated measurements design. It also used a counterbalance design. 10 young men (20-25 years old and BMI 21.36 kg/m2) were selected by a public call. KAATSU first session of resistance training started 72 hours after 1 RM was determined and blood pressure of quadriceps was evaluated. One week after the first session of KAATSU training, similar subjects performed the resistance training without blood flow restriction. Then, blood samples were collected in three phases to measure the mentioned variables. Results showed that lactate and growth hormone levels significantly increased in both groups especially after the second blood sampling (P<0.05). However, results showed that IGF-1 significantly increased immediately after KAATSU training in comparison with training without blood flow restriction (P<0.05). It can be concluded that the pattern of changes in concentration of blood lactate and growth hormone was similar in both groups. Pearson correlation coefficient of the three factors showed that only the relationship between hGH and lactate was significant in KAATSU group. In addition, this training significantly increased IGF-1 in KAATSU group compared with the other group.
کلیدواژه‌ها [English]
- human growth hormone (hGH)
- insulin-like growth factor 1 (IGF-1)
- KAATSU training
- lactate
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