Normal human heart is dominated by sympathetic nerve and vagus nerve. When sympathetic nerve is excited, human heart rate will increase, and when vagus nerve is excited, heart rate will decrease.
Heart rate variability analysis is to measure whether sympathetic nerve and vagus nerve dominate the heart in a balanced range. The RR interval of 24-hour total heart rate was recorded for statistical analysis. The normal reference value is 14 1ms 39ms. Beyond this value, the innervation of sympathetic nerve and vagus nerve is out of balance, and the next step may occur, such as heart event or arrhythmia.
Extended data:
Preventive measures for arrhythmia:
1, properly limit activities, and it is advisable not to react. If you have dizziness, palpitation, dyspnea and other reactions, you must stay in bed. Gradually increase the activity according to the degree of relief, and don't rush it.
2, the diet should be a small amount of meals, low salt, low calorie, high vitamins, no gas-producing food.
3. Keep the stool unobstructed, do not defecate forcibly, and use laxatives when necessary.
4. If the user's pulse suddenly increases or decreases by 20 beats/min, or faster than 1 10 beats/min, or slower than 60 beats/min, it should be reported to the medical staff immediately for timely treatment.
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