Tags

Type your tag names separated by a space and hit enter

[The circulatory changes as dependent on the type of autonomic homeostasis in divers in dives to a depth of 65 m].
Fiziol Zh. 1999; 45(5):38-48.FZ

Abstract

Investigations were performed during 24 simulated air dives under pressure 0.74 MPa in which 16 divers took part. Before, during and after dives intrathoracic pressure, mean arterial pressure, ECG, rheoplethysmogram and intervalocardiogram were recorded continuously with the Valsalva maneuvers. Variables of heart pumping function, peripheral vascular system, phasic heart cycle structure were calculated. For evaluation of autonomic homeostasis variational and spectral analysis of cardiac rhythm were used. In hyperbaria a part of hemodynamic response peculiarities to intrathoracic pressure increase were common to all divers and caused by hyperoxia and increased density of breathing medium, which lead to the appearance of bradycardia, decrease of cardiac output, peripheral vasoconstriction enhancement. Other observed features were determined by alterations in sympathetic and parasympathetic nervous system tonus. These changes were rather complex and highly individual. Our data may benefit evaluation of hyperbaric factor stressful action on blood flow and autonomic nervous system.

Authors+Show Affiliations

A. A. Bogomoletz Institute of Physiology, National Academy of Science of Ukraine, Kiev.

Pub Type(s)

Comparative Study
English Abstract
Journal Article

Language

ukr

PubMed ID

10687062

Citation

Il'ïn, V M.. "[The Circulatory Changes as Dependent On the Type of Autonomic Homeostasis in Divers in Dives to a Depth of 65 M]." Fiziolohichnyi Zhurnal (Kiev, Ukraine : 1994), vol. 45, no. 5, 1999, pp. 38-48.
Il'ïn VM. [The circulatory changes as dependent on the type of autonomic homeostasis in divers in dives to a depth of 65 m]. Fiziol Zh. 1999;45(5):38-48.
Il'ïn, V. M. (1999). [The circulatory changes as dependent on the type of autonomic homeostasis in divers in dives to a depth of 65 m]. Fiziolohichnyi Zhurnal (Kiev, Ukraine : 1994), 45(5), 38-48.
Il'ïn VM. [The Circulatory Changes as Dependent On the Type of Autonomic Homeostasis in Divers in Dives to a Depth of 65 M]. Fiziol Zh. 1999;45(5):38-48. PubMed PMID: 10687062.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [The circulatory changes as dependent on the type of autonomic homeostasis in divers in dives to a depth of 65 m]. A1 - Il'ïn,V M, PY - 2000/2/25/pubmed PY - 2000/3/18/medline PY - 2000/2/25/entrez SP - 38 EP - 48 JF - Fiziolohichnyi zhurnal (Kiev, Ukraine : 1994) JO - Fiziol Zh VL - 45 IS - 5 N2 - Investigations were performed during 24 simulated air dives under pressure 0.74 MPa in which 16 divers took part. Before, during and after dives intrathoracic pressure, mean arterial pressure, ECG, rheoplethysmogram and intervalocardiogram were recorded continuously with the Valsalva maneuvers. Variables of heart pumping function, peripheral vascular system, phasic heart cycle structure were calculated. For evaluation of autonomic homeostasis variational and spectral analysis of cardiac rhythm were used. In hyperbaria a part of hemodynamic response peculiarities to intrathoracic pressure increase were common to all divers and caused by hyperoxia and increased density of breathing medium, which lead to the appearance of bradycardia, decrease of cardiac output, peripheral vasoconstriction enhancement. Other observed features were determined by alterations in sympathetic and parasympathetic nervous system tonus. These changes were rather complex and highly individual. Our data may benefit evaluation of hyperbaric factor stressful action on blood flow and autonomic nervous system. SN - 2522-9028 UR - https://www.unboundmedicine.com/medline/citation/10687062/[The_circulatory_changes_as_dependent_on_the_type_of_autonomic_homeostasis_in_divers_in_dives_to_a_depth_of_65_m]_ DB - PRIME DP - Unbound Medicine ER -