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
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [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]
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