Features of changes in physiological and psychophysiological indices, as well as of the physical efficiency of the heart, depending on the degree of neurotism in hypoxic conditions

Abstract

Features of hypoxia tolerability by persons with different levels of neurotism are presented. It was found that changes on physiological parameters such as heart rate, arterial pressure and saturation of arterial blood in persons with a high level of neurotism are more pronounced in conditions of hypoxia. In particular, to the 25-30th min. when they stay in altitude chamber, heart rate is enlarged by 38% (p0,01) from initial. The persons with the low level of a neyrotizm, the augmentation of heart rate doesn’t exceed 28% (p0,01). This compensatory physiological reaction helps maintain arterial blood saturation in people with high neurotism by 5,3% (p0,05) more, at people with a low degree of neurotism. However, at the same time at examinees with a high level of neurotism, in comparison with persons with the low level of a neyrotizm more expressed decrease of working capacity of a myocardium on 23,4%. In addition, in persons with a high degree of neurotism, there is a more pronounced negative dynamics of an increase in the time of a complex sensomotorny reaction to 41,57 ms (p0,05) from background level, while in persons with low neurotism only by 26,19 ms (p0,05). Thus, at assessment of an acceptability of a hypoxia, it is necessary to take into account the dependence of changes physiological and psychophysiological indicators and also physical effeciency of heart from degree neyrotizm.