呼吸と血圧変動

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The present study concerened with breathing(breath-holding and deep breathing)effect upon blood pressure in healthy control, cardiac neurosis and essential hypertension. In the resting state, relatively high respiration frequency and pulse rate associated with respiratory irregularity was found in cardiac neurosis. The respiratory frequency in hypertension also showed a tendency to high. During breath-holding, the fall in blood pressure was obtained in 54% of healthy control and cardiac neurosis and 82% of essential hypertension. The value of decreased blood pressure during breath-holding in hypertension was significantly higher than that in healthy control. The relation between fall in blood pressure and Cornell Medical Index in hypertension was studied. The subjects having a stronger neurotic tendency tend to fall in blood pressure much more. During deep breathing(natural), the fail in blood pressure was obtained in 54% and 57% of healthy control and cardiac neurosis respectively and 78% of essential hypertension. The value of decreased blood pressure during deep breathing in hypertension was significantly higher than that in healthy control. The few case of fall in blood pressure during costal deep breathing was found as compared with natural deep breathing. However most subjects showed fall in blood pressure during abdominal deep breathing in healthy control and essential hypertension. The blood pressure variation is so great during breathing load in hypertension that it is suggested the unstable characteristics in cardiovascular system.
1973-02-01

呼吸と血圧変動

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