اثر شش هفته قرارگیری در معرض تمرینات ورزشی رقابتی در تعدیل پاسخ آلفا آمیلاز و کورتیزول بزاق در نوجوانان

نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناس ارشد،گروه علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه شهید مدنی آذربایجان، تبریز، ایران

2 دانشیار،گروه علوم ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه شهید مدنی آذربایجان، تبریز، ایران

چکیده

هنوز مشخص نیست که آیا قرارگیری در معرض تمرینات ورزشی رقابتی می تواند منجر به سازگاری و کاهش نشانگرهای بزاقی استرس در نوجوانان گردد یا خیر؟ مطالعه حاضر با هدف بررسی اثر شش هفته قرارگیری در معرض تمرینات ورزشی رقابتی در تعدیل پاسخ آلفا آمیلاز و کورتیزول بزاق به یک جلسه رقابت ورزشی در نوجوانان انجام شد. 24 دخترو پسر نوجوان سالم با تخصیص تصادفی 50 درصد به هر جنسیت در دو گروه تمرین رقابتی (12 نفر) و تمرین غیررقابتی (12 نفر) شرکت کردند. تمرینات در هر دو گروه به مدت شش هفته انجام شد. آزمودنی‌ها تست رقابتی را با فاصله 48 ساعت قبل و بعد از دوره تمرینات انجام دادند. پاسخ کورتیزول و آلفا آمیلاز بزاق قبل و 5 دقیقه بعد از تست رقابتی در دو مرحله پیش آزمون و پس آزمون ارزیابی شدند. تجزیه و تحلیل داده ها به کمک آزمون تحلیل واریانس اندازه گیری مکرر و تی تست مستقل در سطح آماری 05/0 P≤ انجام ‌شد. نتایج حاکی از افزایش معنادار آلفا آمیلاز بزاق پس از تست رقابتی در پیش آزمون و پس آزمون در هر دو گروه بود (05/0>p)، ولی کورتیزول در هیچ کدام از گروه ها تغییر معناداری نیافت. تفاوت معناداری در پاسخ کورتیزول و آلفا آمیلاز بین دو گروه مشاهده نشد(05/0>P). نتیجه کلی نشان داد که نوجوانان به استرس ناشی از رقابت ورزشی حاد به صورت افزایش آلفا آمیلاز بزاق پاسخ می دهند و تکرار حضور در تمرینات رقابتی شش هفته ای اثری در تعدیل پاسخ کورتیزول و آلفا آمیلاز بزاق ایجاد نمی‌کند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effects of six weeks of competitive exercise training exposure on modulating the response of salivary alpha-amylase and cortisol in adolescents

نویسندگان [English]

  • Parisa Gholizadeh 1
  • Azam Zarneshan 2
  • Karim Azali Alamdari 2
1 Department of Sport Sciences, Faculty of Educational Sciences and Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran
2 Department of Sport Sciences, Faculty of Educational Sciences and Psychology, Azarbaijan Shahid Madani University, Tabriz, Iran
چکیده [English]

It is not yet clear whether exposure to competitive exercise training (CET) can lead to adaptation and reduction of salivary markers of stress in adolescents or not? This study aimed to investigate the effects of six weeks of exposure to CET in modulating the response of salivary alpha-amylase and cortisol to a single bout of acute competitive activity in adolescents. 24 healthy adolescents (12 girls and 12 boys) participated in this research in two groups of competitive (n=12) and noncompetitive(n=12) exercises with random allocation of 50% to each gender. Exercises were performed in both groups for six weeks and two sessions per week. The subjects performed the acute competitive activity with an interval of 48 hours before and after the training period. Salivary cortisol and alpha-amylase responses were evaluated before and 5 minutes after the acute competitive activity in two stages, pre-test and post-test. Data analysis was done with the Repeated measures ANOVA and independent t-tests at the statistical level of P≤0.05.The results indicated a significant increase in salivary alpha-amylase after the acute competitive activity in the pre-test and post-test in both groups (p<0.05), but cortisol did not change significantly in any of the groups. There was no significant difference between the groups in cortisol and alpha-amylase responses (P<0.05). In summary the results showed that adolescents respond to the stress caused by acute competitive activity in the form of an increase in salivary alpha-amylase, and repeated participation in six weeks CET does not have an effect on modulating the response of salivary cortisol and alpha-amylase.

کلیدواژه‌ها [English]

  • competitive sport
  • Alpha amylase
  • Cortisol
  • Adolescent
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