探討運動與身體姿勢的效應對心電圖估計心輸出量的影響

The Effect of Exercise and Posture upon Cardiac Output

10.29859/JITR.200903.0004

高紹源(Yuan-Shao Gao)；陳正國(Jheng-Guo Chen)；蔡瑋菱(Wei-Ling Cai)；蔡思珊(Ssu-Shan Tsai)

心電圖 ； 心輸出量 ； 心動輸出量 ； 心跳 ； ECG ； cardiac output ； stroke volume ； heart rate

島嶼觀光研究

2卷1期（2009 / 03 / 01）

55 - 64

繁體中文

如果能用心電圖，計算出每一次心跳的血液輸出量，及每一分鐘的血液輸出量，這對運動科學的運用是何等的重要。我們可以用很多種方式，測量出每一次心跳的血液輸出量，及每一分鐘的血液輸出量，但是都會因爲被測量的樣本、時間、環境，及當時樣本心情的不同而有所影響。每一分的血液輸出量，是等於每一分鐘的心跳，乘以每一次心跳的血液輸出量。所以當被測量的樣本站在跑步機上並戴上面罩時，樣本其心情會有所變化。如果樣本心情緊張時，樣本的心跳就會加速，心跳一加速，則其單位時間的血液輸出量就增加。因此，如果能用心電圖，計算出樣本每一分鐘的血液輸出量，那麼其所得結果的精確度會比較高。本研究是以受試者的心電圖，算出每一分鐘的血液輸出量。如果這種方式所測得的結果，比其他的方式更精確，那其應用性會更經濟、迅速以及實用。

It has never been established that the electrocardiogram can give information concerning stroke volume and cardiac output. Tagart et al. (1972) made reference to cardiac output, stoke volume, heart rate, and electrocardiographic configuration. In this paper cited the T-wave changes appear to be moving in the direction of the expected changes in stroke volume. If the T-wave represents repolarization of the ventricles and the QRS complex represents depolarization of the ventricles then there should be a relationship between the two configurations.

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