بررسی فراتحلیل مکمل سازی کراتین بر قدرت و توان عضلانی در رشته های مختلف ورزشی

نوع مقاله : مقاله فراتحلیل

نویسندگان

1 گروه فیزیولوزی ورزشی، دانشکده علوم انسانی و اجتماعی، دانشگاه کردستان، سنندج، ایران.

2 گروه فیزیولوژی ورزشی، دانشکده علوم‌انسانی و اجتماعی، دانشگاه کردستان، سنندج، ایران.

3 گروه فیزیولوژی ورزشی، دانشکده علوم انسانی و اجتماعی، دانشگاه کردستان، سنندج، ایران.

چکیده

هدف: این فراتحلیل اثر مکمل‌سازی کراتین بر عملکرد جسمانی ورزشکاران رشته‌های مختلف را بررسی می‌کند.

روش شناسی: پژوهش حاضر از نوع فراتحلیل است. داده‌ها از پایگاه‌های اطلاعاتی مانند PubMed، Medline، Google Scholar و ScienceDirect جمع‌آوری شدند. مطالعات کارآزمایی تصادفی کنترل‌شده (RCT) که اثر کراتین را بر قدرت و توان عضلانی بررسی کرده بودند، انتخاب شدند. از بین مقالات جستجو شده، ۲۸ مطالعه (۱۶ مورد قدرت عضلانی و ۱۲ مورد توان عضلانی) برای تحلیل نهایی انتخاب شدند. تحلیل داده‌ها با نرم‌افزار CMA نسخه ۳ انجام شد.

یافته‌ها: نتایج بررسی مطالعات تجزیه و تحلیل شده در فراتحلیل حاضر نشان داد که مکمل سازی کراتین اثر معناداری بر قدرت عضلانی (ES=0/421, 95% CL= 0/209; 0/633, P <0/001) و توان عضلانی (ES=1/191, 95% CL= 0/577; 1/812, P <0/001) در ورزشکاران رشته های مختلف ورزشی دارد. تحلیل زیر گروهی نشان داد که ورزشکارانی که دوز مساوی و یا 7-5 گرم در روز مصرف کرده بودند، نسبت به ورزشکارانی که کمتر از 5 گرم در روز مصرف کرده بودند، افزایش معناداری را در توان عضلانی مشاهده نمودند ES= (1.005) 95% CL= (-0.671; 1.339), (P≤ 0.001)، در برابر ES= (1.071) 95% CL= (-0.277; 1.865), (P≤.

نتیجه‌گیری: مکمل‌سازی کراتین قدرت و توان عضلانی ورزشکاران را بهبود می‌بخشد. دوز بهینه ۵-۷ گرم در روز است و مصرف مطلق کراتین (بدون در نظر گرفتن وزن بدن) نسبت به مصرف نسبی، تأثیر بیشتری دارد.

تازه های تحقیق

 

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Meta-analysis of creatine supplementation on muscle strength and power in different sports fields

نویسندگان [English]

  • Hadi Golpasandi 1
  • Shahram Ghotbi 2
  • Saadun Mohammadi 3
1 Department of Exercise Physiology, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, Iran.
2 Department of Exercise Physiology, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, Iran.
3 Department of Exercise Physiology, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, Iran.
چکیده [English]

Aim: This meta-analysis examines the effects of creatine supplementation on the physical performance of athletes across various sports.

Method: The study is a meta-analysis. Data were collected from databases such as PubMed, Medline, Google Scholar, and ScienceDirect. Randomized controlled trials (RCTs) investigating the effects of creatine on muscle strength and power were selected. Out of the searched articles, 28 studies (16 on muscle strength and 12 on muscle power) were included for final analysis. Data were analyzed using CMA software version 3.

Results: The results of the analyzed studies in this meta-analysis showed that creatine supplementation has a significant effect on muscle strength (ES=0.421, 95% CL=0.209; 0.633, P<0.001) and muscle power (ES=1.191, 95% CL=0.577; 1.812, P<0.001) in athletes across various sports. Subgroup analysis revealed that athletes who consumed a dose of 5-7 grams per day experienced a significant increase in muscle power compared to those who consumed less than 5 grams per day (ES=1.005, 95% CL=-0.671; 1.339, P≤0.001) versus (ES=1.071, 95% CL=-0.277; 1.865, P≤0.008).

Conclusion: Creatine supplementation improves muscle strength and power in athletes. The optimal dose is 5-7 grams per day, and absolute creatine intake (without considering body weight) has a greater impact than relative intake.

کلیدواژه‌ها [English]

  • Dose - Response
  • Muscular Strength
  • Muscular Power and Creatine Monohydrate

اصل مقاله

 

Publisher: University of Kurdistan         Copyright © The Authors

This is an open access article distributed under the following Creative Commons license: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

 

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پژوهش در تغذیه ورزشی
دوره 3، شماره 1
فروردین 1403
صفحه 36-15

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  • تاریخ دریافت: 16 دی 1403
  • تاریخ بازنگری: 19 بهمن 1403
  • تاریخ پذیرش: 22 بهمن 1403
  • تاریخ اولین انتشار: 22 بهمن 1403

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