The effects of creatine monohydrate supplementation on physical exercise
Abstract
Introduction e objective: Creatine is a food supplement that has been widely used due to its potential effect on physical performance, increasing muscle performance in physical exercise practitioners and even acting to combat the loss of muscle mass related to aging. The objective of the present study was to analyze published scientific literature regarding the use of Creatine supplementation in the practice of physical exercise in adults and the elderly. Materials and methods: The search was conducted using databases such as PubMed, Scielo and Lilacs and was limited to original, randomized studies carried out with human beings, published in the last ten years and in English, Portuguese and Spanish. A total of 415 articles were retrieved, 40 of which were selected by title, and after reading the abstracts, 28 were discarded based on established criteria. After that, the selected articles were submitted to a methodological quality assessment using the Jadad scale. Results: Twelve articles were evaluated, corresponding to randomized studies, half in adults and half in the elderly, most of which evaluated male individuals. Creatine supplementation protocols varied in terms of amount and duration. The evaluated outcomes varied between strength, fatigue index, power, resistance, neutralization of mass loss induced by aging. Conclusion: In general, studies have shown that resistance exercise associated with the use of creatine improves different points in muscle performance, as well as neutralizing the loss of lean mass in the elderly.
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