نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیار فیزیولوژی ورزش، گروه علوم ورزشی، دانشکده علوم تربیتی و روان شناسی، دانشگاه محقق اردبیلی، اردبیل، ایران.
2 استاد فیزیولوژی ورزش، گروه فیزیولوژی ورزش، دانشکده علوم ورزشی، دانشگاه گیلان، رشت، ایران.
3 دکتری فیزیولوژی ورزش، گروه علوم ورزشی، دانشکده علوم تربیتی و روان شناسی، دانشگاه محقق اردبیلی، اردبیل، ایران.
چکیده
زمینه و هدف: علاوه بر عوامل جسمانی، فیزیولوژیکی، روان شناختی و تکنیکی، عوامل محیطی از قبیل دما نیز بر اجرای ورزشکاران و به‌ویژه سلامت آن ها اثر گذارند. از این رو، در مطالعه حاضر سعی شد که تأثیر شرایط دمایی مختلف بر سطح شاخص‌های التهابی و استرس اکسایشی کشتی گیران نوجوان بررسی گردد. روش تحقیق: تعداد 21 نفر از کشتی گیران نوجوان باشگاه های استان کردستان (سن: 0/8±15/04 سال، وزن: 12/67±59/20 کیلوگرم، قد: 7/39±163/47 سانتی متر، چربی بدن: 3/39±10/03 درصد) در مطالعه حاضر شرکت کردند. بر اساس ویژگی های ترکیب بدن و آنتروپومتریکی آزمودنی‌ها به سه گروه تقسیم شدند. پس از ایجاد شرایط دمایی مورد نظر (دماهای 10، 18 و 30 درجه سانتی گراد) از آزمودنی‌ها خواسته شد که پروتکل تمرینی مبتنی بر فنون کشتی را انجام دهند. نمونه‌های خونی در زمان های قبل از فعالیت، بلافاصله و 30 دقیقه بعد از فعالیت جمع‌آوری شدند. برای تجزیه و تحلیل یافته ها از آزمون تحلیل واریانس با اندازه گیری های مکرر و آزمون تعقیبی توکی در سطح معنی‌داری 0/05>p استفاده شد. یافته‌ها: یافته‌ها نشان داد که سطح اینترلوکین -6 (0/01=p) و عامل نکروز دهنده توموری آلفا (0/01=p) در گروه دمای بالا پس از فعالیت افزایش معنی‌داری دارد و تغییر معنی‌داری در سایر گروه‌ها مشاهده نشد. همچنین، میزان افزایش اینترلوکین -6 در گروه دمای بالا بیشتر بود و بین گروه دمای طبیعی و دمای بالا (0/001=p) و گروه دمای پایین و دمای بالا (0/001=p) تفاوت معنی‌داری مشاهده شد. علاوه بر این، تغییرات درون‌گروهی مالوندیآلدئید در هر سه گروه از نظر آماری معنی‌دار نبود (0/56=p). همچنین، بین تغییرات گروه‌ها اختلاف معنی‌داری مشاهده نشد (0/25=p). نتیجه‌گیری: نتایج نشان داد فشار گرمایی می‌تواند سبب تشدید التهاب و استرس اکسایشی در کشتی گیران نوجوان شود. از این رو، با توجه به حساس بودن دوره نوجوانی توصیه می‌شود که به دمای سالن های تمرینی و مسابقات این رده سنی توجه ویژه‌ای صورت گیرد.
کلیدواژه‌ها
عنوان مقاله [English]
Effect of various ambient temperatures on proinflammatory cytokines levels and oxidative stress index of adolescencewrestlers
نویسندگان [English]
- Lotfali Bolboli 1
- Bahman Mirzaei 2
- Navid Lotfi 3
1 Associated Professor of exercise physiology, Department of Physical Education and Sport Sciences, Faculty of Education and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran.
2 Professor of exercise physiology, Department of Physical Education and Sport Sciences, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran
3 PhD in exercise physiology, Department of Physical Education and Sport Sciences, Faculty of Education and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran.
چکیده [English]
Background and Aim: In addition to physical, physiological, psychological and technical factors, the environmental parameters such as ambient temperature could also have an affect on the performance of athletes and especially their health. Therefore, the purpose of present study was to investigate the effects of different ambient temperature on the level of proinflammatory and oxidative stress markers in adolescence wrestlers. Materials and Methods: 21 adolescence wrestlers of Kurdistan province clubs participated as subjects in this study. Based on body composition and anthropometric profiles, subjects were divided into three groups. After providing the desired temperature (30 °C, 18 °C and 10 °C), subjects were asked to complete a Wrestling Technique Based on Circuit Training protocol. Blood samples were collected before, immediately and 30 minutes after exercise. The Repeated measures analysis of variance and Tukey post hoc tests were used to analyze the results, and the significant level was set at pResults: The results showed that the levels of interleukin-6 (p=0.01) and tumor necrosis factor alpha (p=0.01) significantly increased after exercise in high temperatures group, but no significant changes were observed in the other groups. Also, the increase rate of IL-6 was higher in high temperature group and there was also significant differences between normal temperature - high temperature groups (p=0.001) and low temperature - high temperature groups (p=0.001). In addition, intra-group changes malondialdehyde in all groups were not statistically significant (p=0.56). Also, there were no significant differences between group (p=0.25). Conclusion: The results showed that heat stress may increase inflammation and oxidative stress in the adolescence wrestlers. Thus, due to the sensitivity of adolescence period it is suggested that pay special attention to ambient temperature of competition and enviroements of this age- group.
کلیدواژه‌ها [English]
- Inflammation
- Oxidative stress
- Anaerobic activity
- Cytokines
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