Efeitos da suplementação de aminoácidos de cadeia ramificada para o aumento de massa muscular e redução da gordura corporal: uma revisão sistemática

Content Provider	Semantic Scholar
Author	Watanabe, Selma Chiyoko
Copyright Year	2017
Abstract	WATANABE, S.C. Effects of branched chain amino acid supplementation for increasing muscle mass and reducing body fat: a systematic review. 2017. 68f. Dissertation (Master's degree) – FCF/FEA/FSP, Universidade de São Paulo, 2017. The search for increased muscle strength, in parallel to decreased in body fat and improved sports performance has led many people to use protein and/or amino acid supplements associated with the practice of physical exercises. Among the numerous supplements of proteins or amino acids available in the market, the branched chain amino acids (BCAA's) have deserved prominence in the last decades. The supplement called BCAA is a combination of three essential amino acids L-Leucine, L-Valine and L-Isoleucine. The claims made to these amino acids revolve around their effects on protein synthesis in skeletal muscle, decreased muscle damage, reduced body fat and improved physical performance. The present study aimed to perform a systematic review of clinical studies in the use of these amino acids in order to increase muscle mass, reduce body fat and increase sports performance, evaluating the results obtained and proving its use and safety. Search for articles in databases resulted in 7502 articles. Following all the exclusion criteria, 11 articles were selected for the present systematic review. The performance was evaluated in 7 articles. The muscle mass was evaluated in 4. The used dose of BCAA ranged from 1.2 g to 10 g and studies have given supplements in the form of powder, capsules and infusion. The best ratio of leucine, valine and isoleucine was 2:1:1, respectively. Considering that the number of studies with beneficial results almost equals that of negative results, more studies are needed to prove the real benefits of using BCAAs as a strategic supplement to increase muscle mass, reduce body fat and increase sports performance.
File Format	PDF HTM / HTML
DOI	10.11606/D.89.2017.tde-02062017-144307
Alternate Webpage(s)	https://teses.usp.br/teses/disponiveis/89/89131/tde-02062017-144307/publico/Selma_Chiyoko_Watanabe_ME_Original.pdf
Alternate Webpage(s)	https://doi.org/10.11606/D.89.2017.tde-02062017-144307
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article