نوع مقاله : مقاله پژوهشی Released under CC BY 4.0 license I Open Access I

نویسندگان

1 دانشیار، دانشکدۀ تربیت بدنی و علوم ورزشی دانشگاه تهران، تهران، ایران

2 کارشناس ارشد تربیت بدنی، دانشکدۀ تربیت بدنی و علوم ورزشی دانشگاه تهران، تهران، ایران

3 دکتری فیزیولوژی ورزش، دانشکدۀ علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

چکیده

هدف از پژوهش حاضر مقایسۀ پاسخ‌های تستوسترون، کورتیزول و کراتین‌کیناز به دو نوع تمرین مقاومتی با و بدون محدودیت جریان خـون بـود. بـه این منظور 36 پسر ژیمناستیک‌کار 10 تا 14 ساله در یک طرح تحقیق نیمه‌تجربی شرکت کردند. آزمودنی‌ها با میانگین وزن 11/8±11/37 کیلوگرم، قد 58/11±16/145 سانتی‌متر، شاخص تودۀ بدن 77/1±40/17 کیلوگرم بر مترمربع به‌طور تصادفی به سه گروه کنترل (12n=)، تمرین مقاومتی سنتی (12n=) و تمرین مقاومتی همراه با محدودیت جریان خون (12n=)، تقسیم شدند. تمرین شامل سه حرکت باز شدن زانو، خم شدن آرنج و پرس سینه بود. نمونه‌های خونی قبل و نیم ساعت بعد از اجرای تمرین گرفته شد. از آزمون آماری تی وابسته برای بررسی نتایج درون‌گروهی و از آنالیز واریانس یکراهه با آزمون تعقیبی LSD برای بررسی نتایج بین‌گروهی استفاده شد. نتایج درون‌گروهی نشان داد که پس از یک وهله فعالیت ورزشی متغیر تستوسترون در هیچ‌یک از گروه‌های قدرتی (653/0P=) و انسدادی (107/0P=) معنا‌دار نشد، لیکن متغیر کورتیزول در هر دو گروه قدرتی (015/0P=) و انسدادی (015/0P=) افزایش معنا‌دار داشت. همچنین کراتین‌کیناز تنها در گروه قدرتی (001/0P=) معنا‌دار شد. نتایج بین‌گروهی نشان داد در هر دو نوع تمرین در مقادیر تستوسترون و کورتیزول تفاوت معنا‌داری بین گروه‌ها وجود نداشت؛ اما در متغیر کراتین‌کیناز تفاوت معنا‌دار بود (05/0P=). این مطالعه با پاسخ آنابولیک برابر در دو نوع تمرین و شاخص آسیب کمتر در گروه تمرین مقاومتی با محدودیت جریان خون تا حدودی از سودمندی این نوع از تمرین مقاومتی حمایت می‌کند.

کلیدواژه‌ها

عنوان مقاله [English]

A Comparison of the Responses of Testosterone, Cortisol and Creatine Kinase to Two Types of Resistance Training with and without Blood Flow Restriction in Gymnast Boys

نویسندگان [English]

  • ali Akbarnejad 1
  • Sirous Choobineh 1
  • Morteza Yari 2
  • ali rajabi 3

1 Associate Professor, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran

2 . MSc of Physical Education, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran

3 Ph.D. of Exercise Physiology, Faculty of Educational Sciences and Psychology, Mohaghegh Ardabili University, Ardabil, Iran

چکیده [English]

The aim of this study was to compare the responses of testosterone, cortisol and creatine kinase to two types of resistance training with and without blood flow restriction. For this purpose, 36 gymnast boys aged between 10 and 14 participated in a quasi-experimental research. The subjects (mean weight 37.11 ± 8.11 kg, height 145.16 ± 11.58 cm, body mass index 17.40 ± 1.77 kg/m2) were randomly divided into three groups: control (n=12), traditional resistance training (n=12), and resistance training with blood flow restriction (n=12). Training protocol included three movements: leg extension, elbow flexion and bench press. Blood samples were collected before and half an hour after the training. Dependent t test was used to check the intragroup results and one-way ANOVA and LSD post hoc test were used to evaluate the intergroup results. The intragroup results showed that testosterone variable was not significant in traditional resistance training (P=0.653) and resistance training with blood flow restriction (P=0.107) groups after a bout of training. But cortisol variable significantly increased in both traditional resistance training (P=0.015) and resistance training with blood flow restriction (P=0.015) groups. Also, creatine kinase was significant only in traditional resistance training group (P=0.001). The intergroup results showed that no significant differences in testosterone and cortisol of both types of training between the groups but the difference was significant in creatine kinase (P=0.05). Equal anabolic response in two types of resistance training in this study and less damage index in blood flow restriction group supported the advantage of this type of resistance training to some extent.

کلیدواژه‌ها [English]

  • blood flow restriction
  • cortisol
  • creatine kinase
  • gymnast boys
  • testosterone
  • traditional resistance training
1.   Lee S, Deldin AR, White D, Kim Y, Libman I, Rivera-Vega M, et al. Aerobic exercise but not resistance exercise reduces intrahepatic lipid content and visceral fat and improves insulin sensitivity in obese adolescent girls: a randomized controlled trial. American journal of physiology-endocrinology and metabolism. 2013;305(10):E1222-E9.
2.Faigenbaum AD, Kraemer WJ, Blimkie CJ, Jeffreys I, Micheli LJ, Nitka M, et al. Youth resistance training: updated position statement paper from the national strength and conditioning association. The Journal of Strength & Conditioning Research. 2009;23:S60-S79.
3.Kraemer W, Fry A, Warren B, Stone M, Fleck S, Kearney J, et al. Acute hormonal responses in elite junior weightlifters. International journal of sports medicine. 1992;13(02):103-9.
4.Fujita S, Abe T, Drummond MJ, Cadenas JG, Dreyer HC, Sato Y, et al. Blood flow restriction during low-intensity resistance exercise increases S6K1 phosphorylation and muscle protein synthesis. Journal of applied physiology. 2007; 103(3); 903-10.
5.Kraemer WJ, Ratamess NA. Hormonal responses and adaptations to resistance exercise and training. Sports medicine. 2005;35(4):339-61.
6.Madarame H, Sasaki K, Ishii N. Endocrine responses to upper-and lower-limb resistance exercises with blood flow restriction. Acta Physiologica Hungarica. 2010;97(2):192-200.
7.Behm DG, Faigenbaum AD, Falk B, Klentrou P. Canadian Society for Exercise Physiology position paper: resistance training in children and adolescents. Applied physiology, nutrition, and metabolism. 2008;33(3):547-61.
8.Pullinen T, Mero A, Huttunen P, Pakarinen A, Komi P. Resistance exercise‐induced hormonal response under the influence of delayed onset muscle soreness in men and boys. Scandinavian journal of medicine & science in sports. 2011;21(6):e184-e94.
9.Brancaccio P, Lippi G, Maffulli N. Biochemical markers of muscular damage. Clinical Chemistry and Laboratory Medicine (CCLM). 2010;48(6):757-67.
10. Pope ZK, Willardson JM, Schoenfeld BJ. Exercise and blood flow restriction. The Journal of Strength & Conditioning Research. 2013;27(10):2914-26.
11. Ratamess N, Alvar B, Evetoch T, Housh T, Kibler W, Kraemer W. Progression models in resistance training for healthy adults [ACSM position stand]. Med Sci Sports Exerc. 2009; 41(3); 687-708.
12. Dahab KS, McCambridge TM. Strength training in children and adolescents: raising the bar for young athletes? Sports Health. 2009;1(3):223-6.
13. Scott BR, Loenneke JP, Slattery KM, Dascombe BJ. Blood flow restricted exercise for athletes: A review of available evidence. Journal of science and medicine in sport. 2016;19(5):360-7.
14. Abe T, Loenneke JP, Fahs CA, Rossow LM, Thiebaud RS, Bemben MG. Exercise intensity and muscle hypertrophy in blood flow–restricted limbs and non‐restricted muscles: a brief review. Clinical physiology and functional imaging. 2012;32(4):247-52.
15. Mohamadi S, Khoshdel A, Naserkhani F, Mehdizadeh R. The effect of low-intensity resistance training with blood flow restriction on serum cortisol and testosterone levels in young men. Journal of Archives in Military Medicine. 2015;3(3).
16. Takarada Y, Nakamura Y, Aruga S, Onda T, Miyazaki S, Ishii N. Rapid increase in plasma growth hormone after low-intensity resistance exercise with vascular occlusion. Journal of applied physiology. 2000;88(1):61-5.
17. Reeves GV, Kraemer RR, Hollander DB, Clavier J, Thomas C, Francois M, et al. Comparison of hormone responses following light resistance exercise with partial vascular occlusion and moderately difficult resistance exercise without occlusion. Journal of applied physiology. 2006;101(6):1616-22.
18. Kon M, Ikeda T, Homma T, Suzuki Y. Effects of low-intensity resistance exercise under acute systemic hypoxia on hormonal responses. The Journal of Strength & Conditioning Research. 2012;26(3):611-7.
19. Karabulut M, Abe T, Sato Y, Bemben MG. The effects of low-intensity resistance training with vascular restriction on leg muscle strength in older men. European journal of applied physiology. 2010;108(1):147.
20. Fahs CA, Loenneke JP, Rossow LM, Tiebaud RS, Bemben MG. Methodological considerations for blood flow restricted resistance exercise. Journal of Trainology. 2012;1(1):14-22.
21. Dorneles GP, Colato AS, Galvão SL, Ramis TR, Ribeiro JL, Romão PR, et al. Acute response of peripheral CC r5 chemoreceptor and NK cells in individuals submitted to a single session of low‐intensity strength exercise with blood flow restriction. Clinical physiology and functional imaging. 2016;36(4):311-7.
22. Loenneke J, Wilson G, Wilson J. A mechanistic approach to blood flow occlusion. International journal of sports medicine. 2010;31(01):1-4.
23. Wu X, Wan S, Lee MM. Key factors in the regulation of fetal and postnatal Leydig cell development. Journal of cellular physiology. 2007;213(2):429-33.
24. Crewther B, Keogh J, Cronin J, Cook C. Possible stimuli for strength and power adaptation. Sports medicine. 2006;36(3):215-38.
25. Pilz-Burstein R, Ashkenazi Y, Yaakobovitz Y, Cohen Y, Zigel L, Nemet D, et al. Hormonal response to Taekwondo fighting simulation in elite adolescent athletes. European journal of applied physiology. 2010;110(6):1283-90.
26. Brancaccio P, Maffulli N, Buonauro R, Limongelli FM. Serum enzyme monitoring in sports medicine. Clinics in sports medicine. 2008;27(1):1-18.
27. Webber LM, Byrnes WC, Rowland TW, Foster VL. Serum creatine kinase activity and delayed onset muscle soreness in prepubescent children: a preliminary study. Pediatric Exercise Science. 1989;1(4):351-9.
28. Soares JM, Mota P, Duarte JA, Appell HJ. Children are less susceptible to exercise-induced muscle damage than adults: a preliminary investigation. Pediatric Exercise Science. 1996;8(4):361-7.
29. Duarte J, Magalhaes J, Monteiro L, Almeida-Dias A, Soares J, Appell H. Exercise-induced signs of muscle overuse in children. International Journal of Sports Medicine. 1999;20(2):103-8.
30. Gorianovas G, Skurvydas A, Streckis V, Brazaitis M, Kamandulis S, McHugh MP. Repeated bout effect was more expressed in young adult males than in elderly males and boys. BioMed research international. 2013;2013.
31. Marginson V, Rowlands AV, Gleeson NP, Eston RG. Comparison of the symptoms of exercise-induced muscle damage after an initial and repeated bout of plyometric exercise in men and boys. Journal of Applied physiolog.2005; 99(3); 1174-81.