RESUMO
A complicated nonlinear biological system should be in principal more sensitive to the external factors activity including geomagnetic disturbances. The complex of experimental studies based on this hypothesis were done simultaneously in two hospitals in Moscow as well as in condition of space orbital station, where just above-mentioned conditions are the case. This studies revealed that the reaction of astronauts to the geomagnetic storm involves a mobilization and activation of all centers of the sympathetic link, and as a result,--a significant increase and stabilization of pulse (heart rate), decrease of the heart rhythm variability and the power of respiratory waves. This nonspecific adaptation stress-reaction was accompanied by variations in the regulation of vascular tonus which is correspond to specific adaptation stress-reaction. The results of clinical examinations of healthy people and patients with the ischemic heart disease lead us to the conclusion that the reaction to the geomagnetic disturbances are mainly of one type and manifests themselves in deterioration of the physiological status, rheologic blood characteristics and the heart rate disturbances similar to ones observed in astronautes.
Assuntos
Astronautas , Magnetismo , Isquemia Miocárdica/fisiopatologia , Adulto , Idoso , Feminino , Frequência Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Respiração , Atividade Solar , AstronaveAssuntos
Sistema Nervoso Autônomo/fisiologia , Pressão Sanguínea , Frequência Cardíaca , Resolução de Problemas/fisiologia , Adulto , Nível de Alerta/fisiologia , Atenção/fisiologia , Encéfalo/fisiologia , Eletrocardiografia , Eletroencefalografia , Epinefrina/sangue , Humanos , Masculino , Norepinefrina/sangue , Avaliação da Capacidade de TrabalhoRESUMO
The authors report on the study of the members of four lengthy expeditions on the orbital station "Saliut-6" in the exercise test with the bicycle ergometer at the station. The cybernetic analysis of the cardiac rhythm during its adaptation to weightlessness shows the definite changes of the controlling systems of the body. It is shown that the "cost" od adaptation to exercise is determined by the results of the cybernetic analysis of the cardiac rhythm.
