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

作为一种新的尝试，研制出一种利用心电图R-R间期变异分析植物神经功能的仪器。它具有以下几个特征功能。（1）从最多250次心跳的记忆中，实现了即时计算。（2）对输入的多个心电信号进行快速傅立叶变换（FFT），得到功率谱和直方图。（3）在静息卧位和站立位运动时，CRT显示器显示170秒内100-250次R-R间期的连续趋势图。从这些相邻或统一的角度，可以在患者眼前判断植物神经系统平衡功能的好坏。（4）这些数据保存在软盘中，可以重复使用，相互比较。几年来，我们对心电图R-R间期波动的计算机分析系统进行了研究。我们对这些软件进行了功能开发，并成功地将软件升级为能够在CRT上显示仰卧位和站立位激发时R-R间期平均值（mRR）的差异，并将其打印出来。另外，我们获得了交感神经和副交感神经之间的中点，即大约800毫秒。40例青年人（平均25.5岁）R-R间期各均值。因此，如果结果小于800毫秒，它似乎是交感神经支配的，如果结果大于800毫秒，它似乎是副交感神经支配的。此外，我们还可以通过其他多方面的分析来了解仪器的多方面特性

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