Citation

Baranova TI. Ross. Fiziol. Zh. Im. I. M. Sechenova 2004; 90(1): 20-31.

Vernacular Title

Ob osobennostiakh serdechno-sosudistoĭ sistemy pri nyriatel'noĭ reaktsii u cheloveka.

Affiliation

St. Petersburg State University, 199034, St. Petersburg, University Emb., 7/9, Russia.

Copyright

(Copyright © 2004, Nauka)

DOI

unavailable

PMID

15143489

Abstract

Comparative-evolutional research of diving response showed that mechanisms of its expression had much in common in humans and in animals. Firstly, it involves a reflex bradycardia, vasoconstriction of peripheral vessels, and blood flow centralization. But, unlike animals whose diving response has some typical species peculiarities, human diving response is rather diverse. Four types of cardiovascular system response to face submersion were revealed: over-reactive, reactive, paradoxical, and nonreactive. These types were chosen according to the bradycardia character. It is also supposed that the occurrence of individual maximal R--R-interval, while serving as a signal to apnea stopping, is among the reasons of apnea activity limitation.

Keywords: Drowning; Drowning Prevention; Water Safety

Language: ru