Protein consumption effects on hypertrophy provocate by resistance training: a current vision
Abstract
Aim: Discuss and synthesize researches examining the effects of protein intake on muscle hypertrophy caused by resistance training.Data sources: The survey was conducted in Pubmed databases. The key words used were: Protein consumption, Protein Intake, Resistance Exercise, Resistance Training, Hypertrophy, Exercise, Nutrition.Data synthesis: Screening studies using the keywords found 73,195 studies. After cross between the descriptors, it was obtained 4,412 studies. Of these, performed after analyzing the titles of the studies were bandied about 502 relevant references; after reading the abstracts a total of 120 studies were selected and then submitted to the inclusion/exclusion criteria, totaling 47 studies. Most of the studies related to practice Resistance Training and muscle protein synthesis capability which effect is associated with, among other nutritional factors, the daily intake of relatively large amounts of high quality protein amino acid.Conclusions: The resistance training practiceis able to enhance the synthesis of muscle proteins acute and chronically. Athletes who perform this type of training need to consume daily a higher amount of protein rich in essential amino acids to recovery muscle tissue damage caused by training. The approximate consumption of 20-25g of protein, preferably with significant amounts of leucine, seem to enhance the synthesis and myofibrillar recovery especially post-training, however the level of hypertrophy caused by this type of exercise is also influenced by metabolic, tension and hormonal factors.
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