文章基本信息

标题：Exercise x BCAA Supplementation in Young Trained Rats: What are their Effects on Body Growth?
本地全文：下载
作者：Patricia Lopes de Campos-Ferraz ; Patricia Lopes de Campos-Ferraz ; Sandra Maria Lima Ribeiro 等
期刊名称：Journal of Sports Science and Medicine
印刷版ISSN：1303-2968
出版年度：2011
卷号：10
期号：3
页码：483-490
语种：English
出版社：University of Uludag
摘要：The purpose of this study was to evaluate whether Branched-chain amino acids (BCAAs) supplementation had any beneficial effects on growth and metabolic parameters of young rats submitted to chronic aerobic exercise. Thirty-two young rats (age: 21-d) were randomly assigned to four experimental groups (n = 8): Supplemented Trained (Sup/Ex), Control Trained (Ctrl/Ex), Supplemented Sedentary (Sup/Sed) and Control Sedentary (Ctrl/Sed). The trained groups underwent a five-week swimming protocol and received supplemented (45 mg BCAA/body weight/day) or control ration. Trained animals presented a lower body length and a higher cartilage weight, regardless of supplementation. Physical activity was responsible for a substantial reduction in proteoglycan synthesis in cartilage tissue, and BCAA supplementation was able to attenuate this reduction and also to improve glycogen stores in the liver, although no major differences were found in body growth associated to this supplementation.
关键词：Branched-chain amino acids;exercise;growth;metabolism;leucine;rat