Effects of Squat Exercise and Branched-Chain Amino Acid Supplementation on Plasma Free Amino Acid Concentrations in Young Women

被引：21

作者：

Shimomura, Yoshiharu ^{[1
]}

Kobayashi, Hisamine ^{[2
]}

Mawatari, Kazunori ^{[2
]}

Akita, Keiichi ^{[3
]}

Inaguma, Asami ^{[3
]}

Watanabe, Satoko ^{[3
]}

Bajotto, Gustavo ^{[1
]}

Sato, Juichi ^{[4
]}

机构：

[1] Nagoya Univ, Lab Nutr Biochem, Dept Appl Mol Biosci, Grad Sch Bioagr Sci, Nagoya, Aichi 4648601, Japan

[2] Ajinomoto Co Inc, Kawasaki, Kanagawa 2108681, Japan

[3] Nagoya Inst Technol, Dept Mat Sci & Engn, Nagoya, Aichi 4668555, Japan

[4] Nagoya Univ Hosp, Dept Gen Med, Nagoya, Aichi 4668560, Japan

来源：

JOURNAL OF NUTRITIONAL SCIENCE AND VITAMINOLOGY | 2009年 / 55卷 / 03期

关键词：

squat exercise; branched-chain amino acids; plasma free amino acids; untrained young women; DEHYDROGENASE; METABOLISM; GLUTAMINE; PROTEIN;

D O I：

10.3177/jnsv.55.288

中图分类号：

R15 [营养卫生、食品卫生]; TS201 [基础科学];

学科分类号：

100403 ;

摘要：

The present study was conducted to examine alterations in plasma free amino acid concentrations induced by squat exercise and branched-chain amino acid (BCAA) supplementation in young. untrained female subjects. In the morning on the exercise session day, participants ingested drinks containing either BCAA (isoleucine : leucine: valine= 1 : 2.3 : 1.2) or dextrin (placebo) at 0.1. g/kg body weight 15 min before a squat exercise session, which consisted of 7 sets of 20 squats, with 3 min intervals between sets. In the placebo trial, plasma BCAA concentrations were decreased subsequent to exercise. whereas they were significantly increased in the BCAA trial until 2 h after exercise. Marked changes in other free amino acids in response to squat exercise and BCAA supplementation were observed. In particular. plasma concentrations of methionine and aromatic amino acids were temporarily decreased in the BCAA trial. being significantly lower than those in the placebo trial. These results suggest that BCAA intake before exercise affects methionine and aromatic amino acid metabolism.

引用

页码：288 / 291

页数：4

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