Trial Product of the Autonomic Nerve Function Analyzable System availed the Fluctuation of the R-R interval variations of ECG

通过心电图R-R间隔变化的测量，为自主神经功能分析提供了一种有用的仪器。它还有几个特征函数。(1)从最多250次心跳的记忆中，完成即时计算。(2)利用快速傅里叶变换（FFT）绘制心电信号的功率谱和直方图。(3)在静息仰卧和站立运动时，在CRT显示器上以连续趋势显示170秒内所有100-250次的R-R间隔。从这些相邻或统一的角度，可以在患者眼前判断自主神经系统平衡功能的好坏。(4)这些保存在软盘中的数据可以重复使用，并且可以相互比较。多年来，我们一直在研究心电R-R间期波动的计算机分析系统。我们开发了这些软件的功能，并成功实现了软件的升级，能够在CRT上显示平卧和站立挑战时R-R间隔（mRR）平均值的差值，并在计算评分中打印出来。另外，我们从40名年轻人（平均25.5岁）的数据中得到交感神经和副交感神经之间的中点，即R-R区间各平均值的800米秒左右。因此，如果一个结果小于800米秒，它似乎是交感神经支配，如果一个结果大于800米秒，它似乎是副交感神经支配。此外，我们还可以通过仪器的其他多方面分析来了解其多特性

A useful instrument for analysis of autonomic nerve function by R-R interval variations measurement of ECG produced as new trial. It has next few characteristic functions.(1)From the memories of 250 heart beats in maximum, immediate compute is accomplished.(2)The power spectrum by Fast Fourier Transforms(FFT)and the histogram from the many inputted ECG waves are delineated.(3)All R-R interval of 100-250 beats in 170 seconds are showed on CRT display as continuous trendgraphs at the resting supine and standing exercise. and from the view of these neighboring or unification, the quality of balancing function of autonomic nerve system can be judged before the patient's eyes.(4)These date which were preserved in floppy disc can be reuse and compate each other.Since several years, we have studied on the computer analysis system of the fluctuation of the R-R interval variations of ECG. We made the function of these software developed and succeeded in the version-up of the software to be able to show on the CRT and in the print-out the calculation-score the difference between the average of R-R interval(mRR)in supine and standing challenge. Otherwise we obtained the middle point between the sympathetic and parasympathetic, that is about 800 m sec. of the each mean values of the R-R interval from the data of 40 young persons(25.5 year old average). Therefore if a result is little than 800 m sec., it seems to be sympathetic dominant, and if a result is large than 800 m sec, it seems to be parasympathetic dominant. Moreover, we are able to know the multi-characteristics by other many-sided analysis from our instrument