پژوهش در طب ورزشی و فناوری

تاثیر فعالیت هوازی حاد پس از یک دوره مصرف مکمل ویتامین C بر وضعیت آهن و شاخص‌های هماتولوژی بازیکنان فوتبال باشگاهی

نویسندگان

مجید مردانیان قهفرخی
عبدالحمید حبیبی
حامد رضایی‌نسب
چکیده
مصرف ویتامینC در جذب آهن اهمیت خاصی دارد. هدف از تحقیق حاضر بررسی تاثیر فعالیت هوازی حاد پس از 2 هفته مصرف مکمل ویتامینC بر وضعیت آهن و شاخص‌های هماتولوژی فوتبالیست‌های باشگاهی بود. در این مطالعه نیمه‌­تجربی، 40 فوتبالیست باشگاهی استان خوزستان (سن 5/7±22/7 سال، شاخص توده بدنی 0/47±29/26 کیلوگرم بر متر مربع و حداکثر اکسیژن مصرفی 11/03±54/4 میلی‌لیتر بر کیلوگرم بردقیقه)، به­‌طور تصادفی به 2 گروه مکمل و دارونما تقسیم شدند. روزانه و به‌­مدت 14 روز آزمودنی‌های گروه مکمل 400 میلی‌گرم ویتامینC و گروه دارونما دکستروز دریافت کردند. 48 ساعت پس از دوره‌ی مکمل‌دهی، آزمون وامانده‌ساز بروس انجام شد. نمونه‌های خون جهت اندازه‌گیری سطوح آهن و فریتین، گلوبول‌ قرمز و هموگلوبین، پیش و پس از مکمل‌دهی، بلافاصله بعد و 72 ساعت پس از آزمون بروس، گرفته شد. آزمون تحلیل واریانس با اندازه‌گیری مکرر و آزمون آنالیز واریانس دوراهه مورد استفاده قرار گرفت. مصرف 2 هفته مکمل ویتامینC نسبت به دارونما، افزایش معنی‌داری در سطوح گلوبول قرمز (0/026p=)، هموگلوبین (0/041p=)، آهن (0/008p=) و فریتین (0/004p=) نشان­ داد. پس از فعالیت وامانده‌ساز هوازی، سطوح گلوبول قرمز (0/034p=)، آهن (0/023p=) و فریتین (0/031p=) گروه مکمل نسبت به دارونما کاهش معنی‌داری یافت. پس از 72 ساعت ریکاوری، افزایش معنی‌داری در سطوح آهن(0/036p=) و فریتین (0/045p=) گروه مکمل نسبت به دارونما مشاهده شد. به‌­نظر می‌رسد مصرف 2 هفته مکمل ویتامینC می‌تواند موجب بهبود وضعیت آهن و فریتین سرم، گلوبول قرمز و هموگلوبین بازیکنان فوتبال باشگاهی پیش از فعالیت‌های شدید و در دوره ریکاوری شود.

کلیدواژه‌ها

فعالیت ورزشی
فوتبال
آنمی
اسید آسکوربیک

عنوان مقاله English

Effect of acute aerobic activity after a period of taking vitamin C supplement on Iron status and hematological indices of professional football players

نویسندگان English

Majid Mardaniyan Ghahfarrokhi
Abdolhamid Habibi
Hamed Rezaei Nasab
چکیده English

Vitamin C consumption is important in Iron absorption. Therefore, the purpose of this study was to investigate the effect of acute aerobic activity after two weeks vitamin C supplementation on Iron status and hematological indices in club football players. In this quasi-experimental study, 40 club football players from Khuzestan province were randomly divided into two groups of vitamin C and placebo. Daily and for 14 days, subjects received 400 mg vitamin C in vitamin C group and 400mg dextrose in placebo group. 48 hours after the end of supplementation, a Bruce test was performed. To measure Iron, Ferritin, RBC and Hb levels, four blood samples were taken from the subjects, before and after the supplementation, immediately after and 72 hours after the Bruce test. Repeated measure ANOVA and Two way analysis of variance was used. 2 weeks of vitamin C supplementation showed a significant increase in RBC (p=0.026), Hb (p=0.041), serum Iron (p=0.008) and serum Ferritin (p=0.004) compared to placebo group. After aerobic exhaustive activity, RBC (p=0.034), serum Iron (p=0.023) and Ferritin (p=0.031) in vitamin C group significantly decreases compared to placebo group. After 72 hours of recovery, the vitamin‌ C group showed a significant increase in serum Iron (p=0.036) and Ferritin (p=0.045) compared to placebo group. It seems that two weeks of vitamin C supplementation can improve the serum Iron, Ferritin, RBC and Hb profile of professional footballers before aerobic exhaustive activity and in recovery.

کلیدواژه‌ها English

Physical Activity
Football
Anemia
ascorbic acid
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