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Nutrients
Mar 16, 2022;14 (6):

Creatine Supplementation for Muscle Growth: A Scoping Review of Randomized Clinical Trials from 2012 to 2021.

Shih-Hao Wu, Kuan-Lin Chen, Chin Hsu, Hang-Cheng Chen, Jian-Yu Chen, Sheng-Yan Yu, Yi-Jie Shiu
Author Information
  1. Shih-Hao Wu: Department of Emergency Medicine, China Medical University Hospital, Taichung 404, Taiwan. ORCID
  2. Kuan-Lin Chen: Department of Exercise Health Science, National Taiwan University of Sport, Taichung 404, Taiwan.
  3. Chin Hsu: Department of Exercise Health Science, National Taiwan University of Sport, Taichung 404, Taiwan. ORCID
  4. Hang-Cheng Chen: Department of Emergency Medicine, China Medical University Hospital, Taichung 404, Taiwan.
  5. Jian-Yu Chen: Department of Exercise Health Science, National Taiwan University of Sport, Taichung 404, Taiwan.
  6. Sheng-Yan Yu: Department of Exercise Health Science, National Taiwan University of Sport, Taichung 404, Taiwan.
  7. Yi-Jie Shiu: Department of Exercise Health Science, National Taiwan University of Sport, Taichung 404, Taiwan.
PMID: 35334912 DOI: 10.3390/nu14061255

Abstract

Creatine supplementation is the most popular ergonomic aid for athletes in recent years and is used for improving sport performance and muscle growth. However, creatine supplementation is not always effective in all populations. To address these discrepancies, numerous studies have examined the use of creatine supplementation for muscle growth. This scoping review aimed to investigate the effects of creatine supplementation for muscle growth in various populations, in which Arksey and O'Malley's scoping review framework is used to present the findings. For this study, we performed a systematic search of the PubMed, Embase, and Web of Science databases for theses and articles published between 2012 and 2021. A manual search of the reference lists of the uncovered studies was conducted and an expert panel was consulted. Two reviewers screened the articles for eligibility according to the inclusion criteria. Methodological quality was assessed using the National Heart, Lung and Blood Institute's (NHLBI's) quality assessment tool. A total of 16 randomized controlled trials (RCTs) were finally included. All the authors extracted key data and descriptively analyzed the data. Thematic analysis was used to categorize the results into themes. Three major themes related to muscle growth were generated: (i) subjects of creatine supplementation-muscle growth is more effective in healthy young subjects than others; (ii) training of subjects-sufficient training is important in all populations; (iii) future direction and recommendation of creatine supplementation for muscle growth-injury prevention and utilization in medical practice. Overall, creatine is an efficient form of supplementation for muscle growth in the healthy young population with adequate training in a variety of dosage strategies and athletic activities. However, more well-designed, long-term RCTs with larger sample sizes are needed in older and muscular disease-related populations to definitively determine the effects of creatine supplementation on muscle growth in these other populations.

Keywords

casting ergogenic aids older population performance enhancement sarcopenia strength

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MeSH Term

Aged
Creatine
Dietary Supplements
Humans
Muscle, Skeletal
Muscular Diseases
Randomized Controlled Trials as Topic

Chemicals

Creatine
Journal Article Scoping Review
Article has an altmetric score of 548

Word Cloud

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