航天活动各阶段心电图和心动时相的变化及其机理分析

Changes in Electrocardiogram and Cardiac Phase During Various Stages in Foreign Manned Spaceflight Activities and the Analysis of Their Possible Mechanisms.

心电图 (ECG)仍是国外载人航天活动各阶段中连续医学监测的唯一技术。我国载人航天计划中ECG也作为重要的医监项目。采用ECG ,可动态观察人体 4大生命体征之一的脉搏 (或心率 )和心功能 ,与ECG有关的心动时相是反映心功能的一项重要指标 ,系统了解国外载人航天活动中ECG和心动时相的变化及其机理对我国载人航天中紧急措施的制定具有重要的参考价值。本文对此作了较系统的回顾与分析。

Electrocardiography(ECG) is still the only method for continuous medical observation during various stages of foreign manned spaceflight activities, and it also serves as an important item for medical monitoring in the project for manned spaceflight activities in our country. With electrocardiography, pulse or heart rate(one of the four life signs) and cardiac function can continuously be observed. Cardiac phase relative to ECG is a main index reflecting cardiac function. Understanding of the results of ECG and cardiac phase and their mechanisms during various stages of foreign manned spaceflight activities will be helpful in establishing emergency measures in the course of manned spaceflight activities in our country.