指尖容積脈波を用いた自律神経機能の評価手法の検討

概要

論文の詳細を見る
The Autonomic Nervous System (ANS) plays important role in maintaining significant functioning of our life. It is well known that many of physiological aspects, for example, body temperature, blood pressure, heart rate and respiration are controlled by multiple feedback control mechanisms of the ANS. The evaluation technique for the ANS is not established because of its essential complexity of the ANS. An experimental study was carried out to investigate useful indices for the estimation of ANS changes in typical experimental situations. Two kinds of thermo-stimulation were used on limbs in normal subjects. The first was the cooling condition using chilled water of 0-5 degrees Centigrade at the left upper limb of the subject. The second was the warming condition using a steamed washcloth of 45 degrees Centigrade put on the left upper limb of the subject. The digital plethysmography (PTG), ECG and respiration were recorded using a biomedical amplifier and stored in a digital data recorder with a sampling frequency of 100Hz. The results showed that latencies to the peak of prime component of the PTG decreased in the cooling condition and increased in the warming condition. The relationship between the latency and the ANS responses as a change of physical parameters of arteries is discussed.
東海大学の論文
1995-03-30