نوع مقاله : مقاله پژوهشی Released under CC BY-NC 4.0 license I Open Access I

نویسندگان

1 دانشجوی دکتری بیوشیمی و متابولیسم ورزشی، گروه فیزیولوژی ورزش، دانشکده علوم تربیتی و روانشناسی دانشگاه شیراز، شیراز، ایران

2 دانشیار گروه فیزیولوژی ورزش، دانشکده علوم تربیتی و روانشناسی دانشگاه شیراز، شیراز، ایران

3 استادیار گروه فیزیولوژی ورزش، دانشکده علوم تربیتی و روانشناسی دانشگاه شیراز، شیراز، ایران

4 استاد تمام گروه فیزیولوژی ورزش، دانشکده علوم تربیتی و روانشناسی دانشگاه شیراز، شیراز، ایران

چکیده

در کنار کالری دریافتی روزانه، ویتامین D و آهن به‌عنوان مواد ریزمغذی از بیشترین اهمیت در رژیم غذایی ورزشکاران، به‌خصوص در سنین رشد و نوجوانی برخوردارند. بنابراین هدف از تحقیق حاضر، تأثیر مداخلۀ آموزشی تغذیه بر کالری کل دریافتی، میزان درشت‌مغذی‌ها، سطوح استراحتی و میزان دریافتی آهن و ویتامین D در فوتبالیست‌های نوجوان رقابتی است. آزمودنی‌های تحقیق 63 فوتبالیست نوجوان رقابتی استان فارس و حاضر در سطح لیگ برتر کشور بودند. به‌منظور دستیابی به کالری کل دریافتی و میزان دریافتی ریزمغذی‌ها، یادآمد سه‌روزه از آزمودنی‌ها گرفته شد، سپس خون‌گیری به‌منظور دستیابی به مقادیر استراحتی ویتامین D و آهن انجام گرفت.گروه مداخلۀ آموزشی تغذیه (41 نفر) و گروه کنترل (22 نفر) آزمودنی‌های پژوهش را تشکیل می‌دادند. گروه تجربی به مدت 4 هفته (8 جلسه 30 دقیقه‌ای آموزش تغذیۀ کاربردی و به‌دنبال آن 10 هفته مشاورۀ حضوری) با حضور در پایگاه اینترنتی و به‌صورت برخط آموزش دیدند. برای بررسی تغییرات درون و بین‌گروهی از تحلیل واریانس مختلط و آزمون‌های T وابسته و مستقل استفاده شد. یافته‌ها نشان داد نتایج آزمون تحلیل واریانس مختلط بر کالری کل دریافتی، سطوح استراحتی ویتامین D و میزان ویتامین D رژیم غذایی معنادار بود (001/0=P) و نتایج آزمون‌های T وابسته حاکی از افزایش معنادار این متغیرها در گروه تجربی نسبت به گروه کنترل بود (01/0 ≥P). نتایج نشان داد مداخلۀ آموزشی تغذیه موجب افزایش معنادار کالری کل دریافتی، کربوهیدرات و پروتئین دریافتی، سطوح استراحتی ویتامین D و میزان دریافتی ویتامین D رژیم غذایی فوتبالیست‌های نوجوان رقابتی می‌شود، اما بر مقادیر استراحتی و میزان دریافتی آهن رژیم غذایی تأثیری ندارد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The effect of nutrition education intervention on total calorie intake, macronutrient content, iron and vitamin D status of competitive adolescent soccer players

نویسندگان [English]

  • Abolfazl Fijan 1
  • Farhad Daryanoosh 2
  • Mohammad Hemmatinafar 3
  • Mohsen Salesi 2
  • maryam Koushkie Jahromi 4

1 Phd student in exercise physiology, Department of Exercise Physiology, faculty of Education and Psychology, University of Shiraz, Iran

2 Associate Professor of exercise physiology, Department of Exercise Physiology, faculty of Education and Psychology, University of Shiraz, Iran

3 Assistant Professor of exercise physiology, Department of Exercise Physiology, faculty of Education and Psychology, University of Shiraz, Iran

4 full Professor of exercise physiology, Department of Exercise Physiology, faculty of Education and Psychology, University of Shiraz, Iran

چکیده [English]

Objective: In addition to daily calorie intake, vitamin D and iron as micronutrients are the most important in the diet of athletes, especially in adolescence. Therefore, the aim of the present study was to investigate the effect of nutrition education intervention on total caloric intake, resting levels and iron and vitamin D intake in competitive adolescent soccer players. Methods: The subjects of this study consisted of 63 competitive adolescent soccer players in the country's premier league. In order to achieve the total caloric intake and the amount of micronutrients, the subjects were recalled for three days, then blood samples were taken to achieve resting amounts of vitamin D and iron. Nutrition education intervention group (n = 41) and control group (n = 22) The experimental group was trained for 4 weeks (8 sessions of 30 minutes of applied nutrition educating followed by 10 weeks of face-to-face counseling) by attending the website and online. To examine changes within and between groups of analysis Mixed variance and dependent and independent t-tests were used. Results: The results of intragroup mixed analysis of variance test on total calories, resting levels of vitamin D and vitamin D in the diet were significant (P = 0.001). Conclusion: Nutritional education intervention significantly increases total caloric intake, carbohydrate and protein intake, resting levels of vitamin D and intake of vitamin D in the diet of competitive adolescent soccer players, but on resting values ​​and Dietary iron intake has no effect.

کلیدواژه‌ها [English]

  • Iron
  • nutrition education intervention
  • soccer players
  • Sports nutrition
  • vitamin D
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