血管緊張素對運動性心臟肥大影響之探討

10.6223/qcpe.2304.200912.2001

陳正中；刁小倚

運動員心臟 ； 腎素－血管緊張素系統

中華體育季刊

23卷4期（2009 / 12 / 01）

1 - 8

繁體中文

運動選手因爲訓練的緣故，使得心臟在形態上呈現心室壁肥厚的情形，並伴隨收縮能力的提升，稱爲「運動員心臟」(athlete's heart)。近年來的研究趨勢顯示，在訓練過程中，相關激素的分泌情形也發生適應性改變。血管緊張素(Angiotensin, Ang) 是一種肽類物質，有四種亞型(Ⅰ~Ⅳ)，其中Ang-Ⅱ的促血管收縮活性最強，作用於血管平滑肌會造成血管管壁收縮；作用在腎臟，造成水分與鹽份在體內滯留，維持血壓在較高水準，因而調節人體的動脈壓力，並且被認爲直接或是間接誘發運動性心肌肥大。本文回顧近年文獻，說明血管緊張素在運動性心臟肥大過程中扮演的角色。

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