تأثیر مکمل‌یاری کوآنزیم Q10 بر فازهای ایزوکپنیک بافری و هایپوکپنیک پرتهویه‌ای در ورزشکاران استقامتی مرد جوان

نوع مقاله: مقاله پژوهشی

نویسندگان

1 استاد گروه فیزیولوژی ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

2 دانشیار گروه فیزیولوژی ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

3 دانشجوی دکتری گروه فیزیولوژی ورزشی، دانشکده علوم تربیتی و روانشناسی، دانشگاه محقق اردبیلی، اردبیل، ایران

چکیده

زمینه و هدف: ایزوکپنیک بافری و هایپوکپنیک پرتهویه‌ای نقش مهمی در ارزیابی عملکرد ورزشی و سلامت قلب و عروق دارند. هدف از این مطالعه تعیین تأثیر مکمل­یاری کوآنزیمQ10 بر فازهای ایزوکپنیک بافری(IB) و هایپوکپنیک پرتهویه­ای (HHV) مردان جوان ورزشکار استقامتی بود.
مواد و روش­ها: 14 مرد جوان ورزشکار انتخاب و به طور تصادفی در دو گروه مساوی قرار گرفتند. بمدت 4 هفته، گروه تجربی کوآنزیمQ10 و گروه کنترل دارونما را به‌مقدار60 میلی‌گرم در روز مصرف کردند. در سه نوبت از هر دو گروه آزمون بیشینه فزاینده (‍CXP) برای اندازه‌گیری آستانه‌تهویه (VT) و نقطه‌جیران‌تنفسی (RCP) در روزهای 1، 14و 28 گرفته شد. گازهای تنفسی آزمودنی‌ها توسط دستگاه گازآنالیزر جمع‌آوری و بطور خودکار مقادیر O2، CO2، معادل تهویه‌ای اکسیژن (EqO2) و معادل تهویه­ای دی‌اکسید‌کربن‌ (EqCO2) معادل با VT و RCP اندازه­گیری و ثبت شد. برای مقایسه متغیرها از آزمون تحلیل واریانس با اندازه‌گیری مکرر و t مستقل استفاده شد (05/0P یافته‌ها: در فاز ایزوکپنیک بافری اختلاف معنی­داری بین مراحل زمانی در گروه کوآنزیم Q10 (28/0=P، 40/1 = F) و گروه کنترل (74/0=P) وجود نداشت. در فاز هایپوکپنیک پرتهویه­ای اختلاف معنی­داری بین مراحل زمانی در گروه کوآنزیم Q10 (01/0=P، 00/7 = F) وجود داشت که مربوط به مرحله زمانی پس‌آزمون با پیش آزمون بوده است (02/P=)، در‌حالی‌‌که در گروه کنترل این اختلاف معنی‌دار نبود. نتایج آزمون t مستقل اختلاف معنی‌داری را بین مراحل مختلف زمانی IB و HHV بین دو گروه نشان نداد.
نتیجه‌گیری: هرچند بصورت تئوریک کوآنزیم Q10 می‌تواند برای ظرفیت تمرین و کاهش استرس اکسیداتیو مفید واقع شود، مطالعه حاضر نتوانست تأثیر معنی‌دار مکمل‌یاری کوآنزیم Q10 بمقدار 60 میلی گرم در روز، بمدت 14 و 28 روز را بردامنه فازهای ایزوکپنیک بافری و هایپوکپنیک پرتهویه­ای مردان جوان ورزشکار نشان دهد.
 

تازه های تحقیق

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کلیدواژه‌ها


عنوان مقاله [English]

Effects of CoQ10 Supplementation on The Isocapnic Buffering and Hypocapnic Hyperventilation in Young Male Endurance Athletes

نویسندگان [English]

  • Siahkuhian Marefat 1
  • Lotfali Bolboli 2
  • Habibollah Dashti 3
1 Department of Physical Education and Sports Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran,
2 Department of Physical Education and Sports Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran,
3 Department of Physical Education and Sports Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran,
چکیده [English]

Background&Purpose: Isocapnic buffering (IB) and hypocapnic hyperventilation (HHV) have important effect in the sport performance and cardiovascular health evaluation. The aim of this study was to examine the effects of CoQ10 supplementation on the isocapnic buffering (IB) and hypocapnic hyperventilation (HHV) in young male endurance athletes.
Materials and Methods: 14 young male athletes were selected and randomly divided in to two equal, Control and CoQ10 groups. For 4 weeks, experimental group and Control group consumed CoQ10 and placebo 60 mg CoQ10 daily, respectively. In three sessions, two groups performed GXT to measure ventilation threshold (VT) and respiratory compensation point (RCP) on the 1, 14 and 28 days. Subject’s respiratory gases collected through the mask and automatically the amount of the consumed O2, CO2, EqO2 and EqCO2, equivalent to VT and RCP at intervals of 10 seconds were recorded. For within and between group mean difference comparison, Repeated measures Anova and independent t-test were used, respectively (P< 0.05).
Results: A repeated measures ANOVA in CoQ10 group, determined that mean IB was not differed significantly between time points (F= 1.40, P=0.28). HHV range differed significantly between time points (F= 7.00, P=0.01). Post-test HHV increased significantly to pre-test (P =0.02). In Con, HHV differences wasn’t significant. There wasn’t between group significant mean difference at IB and HHV.
Conclusion: Although in theory coenzyme Q10 may be useful for exercise capacity and decrease oxidative stress, 14 and 28 day supplementation with 60 mg/d Q10 failed to show any significant effects on the isocapnic buffering (IB) and hypocapnic hyperventilation (HHV) phases in young male athletes.
 

کلیدواژه‌ها [English]

  • Coenzyme Q10
  • Hypocapnic hyperventilation
  • Isocapnic buffering
  • Supplementation

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