ورزش و علوم زیست حرکتی

ورزش و علوم زیست حرکتی

تأثیر یک شبانه‌ روز محرومیت از خواب و مصرف کافئین بر عملکرد عضلانی و فیزیولوژیکی پسران هندبالیست نخبه

نویسندگان
1 دانشکده علوم ورزشی رازی کرمانشاه
2 دانشگاه حکیم سبزواری- دانشکده علوم ورزشی
چکیده
مقدمه و هدف: برخی تحقیقات تأثیر بی‌خوابی بر عملکرد ورزشکاران را مورد مطالعه قرار داده‌اند. اما پژوهشی جهت بررسی تأثیر مصرف مکمل کافئین متعاقب محرومیت 24 ساعته از خواب یافت نشد. بنابراین هدف از پژوهش حاضر بررسی اثر حاد مصرف کافئین متعاقب 24 ساعت محرومیت از خواب بر عملکرد عضلانی و فیزیولوژیکی پسران هندبالیست بود.
مواد و روش­ها: در این مطالعه دو سوکور و نیمه تجربی، 40 پسر هندبالیست (با میانگین سنی: 3.36±17.66 سال، قد: 7.29±179.47 سانتی‌متر، وزن: 14.04±82.27 کیلوگرم)، به طور تصادفی به چهار گروه (هر گروه 10 نفر) مکمل کافئین + محرومیت از خواب، دارونما + محرومیت از خواب، گروه بی‌خوابی و گروه خواب کامل تقسیم شدند. گروه مکمل یک ساعت قبل از شروع آزمون کپسول حاوی کافئین (5 میلی‌گرم به ازای هرکیلوگرم وزن بدن افراد) و گروه دارونما (پودر نشاسته) را مصرف کردند. از آزمون آماری آنووا یک راهه (ANOVA) برای مقایسه بین گروه‌ها سطح معناداری  (0.05≥P < span lang="AR-SA">) استفاده شد.
یافته­ ها: 24 ساعت محرومیت از خواب بر استقامت عضلات شکمی و انعطاف‌پذیری تأثیر معناداری نداشت (0.05≤P < span lang="AR-SA">). اما محرومیت از خواب موجب کاهش معنادار قدرت، توان و استقامت عضلانی کمربند شانه‌ای آزمودنی‌ها شد (0.05≥P < span lang="AR-SA">). همچنین مصرف کافئین بعد از 24 ساعت محرومیت از خواب باعث بهبود قدرت و توان عضلانی در گروه مکمل نسبت به گروه دارونما شده بود (0.05≥P < span lang="AR-SA">). اما بین استقامت عضلانی گروه کافئین با گروه دارونما تفاوتی مشاهده نشد (0.05≤P < span lang="AR-SA">).
بحث و نتیجه­ گیری: با توجه به نتایج، می‌توان بیان نمود که عملکرد جسمانی و فیزیولوژیکی به دلیل توام شدن فشار روانی ناشی از  بی‌خوابی و استرس ناشی از فعالیت ورزشی دچار اختلال می‌شود. بنابراین پیشنهاد می‌شود برای جبران بی‌خوابی و بهبود عملکرد از مکمل کافئین استفاده شود. 
کلیدواژه‌ها

عنوان مقاله English

The effect of a day and night of sleep deprivation and caffeine consumption on muscle and physiological performance of Boys elite handball players

نویسنده English

Rezvan kheirandish 1
چکیده English

Introduction and purpose: Some studies have studied the effect of insomnia on the performance of athletes. However, no research was found to investigate the effect of caffeine supplementation after 24-hour sleep deprivation. Therefore, the aim of the present study was to investigate the acute effect of caffeine consumption following 24 hours of sleep deprivation on the muscular and physiological performance of handball players.
Material and Methods: In this double-blind and semi-experimental study, 40 male handball players (average age: 17.66±3.36 years, height: 179.47±7.29 cm, weight: 82.27±14.04 kg), were randomly divided into four groups (10 people in each group): caffeine supplement + sleep deprivation, placebo + sleep deprivation, insomnia group and complete sleep group. The supplement group took caffeine capsules (5 mg per kilogram of body weight) and the placebo group (starch powder) one hour before the test. One-way ANOVA statistical test was used to compare the significance level (P≤0.05) between groups.
Results: 24 hours of sleep deprivation had no significant effect on abdominal muscle endurance and flexibility (P≤0.05). However, sleep deprivation caused a significant decrease in the strength, power and muscular endurance of the subjects' shoulder girdle (P≥0.05). Also, consuming caffeine after 24 hours of sleep deprivation improved muscle strength and power in the supplement group compared to the placebo group (P≥0.05). However, there was no difference between the muscle endurance of the caffeine group and the placebo group (P≤0.05).
Discussion and Conclusion: According to the results, it can be stated that the physical and physiological performance is disturbed due to the combination of mental pressure caused by insomnia and stress caused by sports activity. Therefore, it is suggested to use caffeine supplement to compensate for insomnia and improve performance.

کلیدواژه‌ها English

Boys handbal
Muscular and physiological function
Caffeine
Sleep deprivatio
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دوره 13، شماره 25 - شماره پیاپی 25
بهار و تابستان
شهریور 1400
صفحه 85-94

  • تاریخ دریافت 02 آذر 1401
  • تاریخ بازنگری 08 اسفند 1401