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体位改变慢:随着年龄的增长,心脏功能会有不同程度的减退,每次心脏收缩射向全身的血液减少,同时脑动脉也发生弹性降低,接纳的血液相对减少,以致不少老年人常出现头昏、眼花的现象。因此,老人由卧位变成坐位、蹲位,由坐位变为立位,如果动作过快时,体位突然改变,就可能发生头晕、眼黑,甚至晕倒或诱发其他疾病。
Slow body position changes: With age, heart function will have varying degrees of decline, each time the systolic blood injection to the body to reduce the same time, also reduce the flexibility of the cerebral arteries, the relative decline in the admission of blood, so many elderly people often Dizziness, dazzling phenomenon. Therefore, the elderly from the supine into a seat, squatting position from seat to position, if the action is too fast, a sudden change in position, it may occur dizziness, dark eyes, or even fainted or induce other diseases.