Correction of Deviations of Psycho-Physiological Status of Hazardous Occupations Specialists With Use of Hypoxic Gas-Air Environments

Objective:to evaluate the possibilities of normobaric hypoxic training (NHT) in the human brain protection from the damaging eﬀects of oxygen defciency.Materials and methods:the study involved 18 men, aged 19-23 years, who underwent NHT: 15 treatments daily 2-hour stay in a hypoxic gas medium (HGM) having an oxygen content 15.0 ± 0.5% (HGM-15). Beforestarting the NHT (I phase), and afer 1-2 days afer its closure (II stage) were carried hypoxic samples (staying in HGM-15) before and during which the subjects were recorded the electroencephalogram (EEG) and mental performance were evaluated (the «Route» test).Results:when the frst hypoxic test was carried out, the subjects had a decrease in the alpha-rhythm index (on average by 10-15 %, p = 0.013) and its amplitude (by 10-12 %, p = 0.044) compared to the usual environmental conditions. At the same time, the share of low-amplitude slow waves increased (p = 0.019). Te integral indicator of the «Route» test during staying of the subjects in the HGM-15 decreased on average by 18% compared to the usual conditions (p <0.001). Te obtained data testifed about negative inﬂuence of staying in HGM -15 on the functioning of the higher parts of the brain. Afer carrying out NHT, all subjects showed a signifcant reduction in the negative reactions of spontaneous EEG to hypoxia: when the sample was repeated, the alpha-rhythm index and its amplitude did not change signifcantly (in comparison with air breathing), signs of excessive slow wave activity were absent. Reduction of the integral indicator of mental performance when staying in HGM-15 amounted to an average of only 6%.Conclusions:NHT in the developed regime is an eﬀective means of the brain protection from the damaging eﬀect of oxygen defciency and can be used in the system of physiological training of specialists to perform tasks of activity in conditions of reduced partial pressure of oxygen.

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Hypoxic training as a way of the human brain protection from the damaging effects of oxygen deficiency

Ерошенко

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Шатов

et al. 2018

Med. vestn. Ûga Ross.

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Perspective Nonpharmacological Technologies of Optimization of Psychophysiological Qualities and Working Capacity of Operators

et al. 2019

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In connection with the growing tension and responsibility of the activities of professional operators, it is necessary to improve the means and methods of their medical and psychophysiological support. Purpose — assessment of the effect of combined physiotherapeutic procedures — CPP (contrasting thermal effects, vibratory massage of the spine and feet, aromatherapy, music therapy) with and without transcranial electrostimulation (TES) on the psychophysiological status and working capacity of operators. Materials and methods. Surveyed 26 professional operators (male) aged 27– 38 years, divided into 2 equal in size groups: the main (MG) and control (CG). All the examined individuals were used the CPP base complex, implemented in a physiotherapy capsule. The complex consisted of 14 daily 45-minute CPP in standard mode. For the MG, the 35-minute TES procedures, also performed in standard mode, were additionally included in the base complex. Prior to the appointment of correctional complexes and after their completion, the subjects were tested for sensorimotor qualities and operator performance. Results. The use of correctional complexes in both groups resulted in positive changes in psychophysiological qualities (acceleration of sensorimotor reactions, reduction in hand tremor) and operator performance (increased attention stability, amount of random access memory, improvement of mental operations). However, in the MG, the identiﬁed changes were more pronounced: the level of tremor in this group decreased by 13–14% compared with the baseline, while in the CG — only by 6–7% (p=0,037); the time of the complex sensorimotor reaction decreased on average by 5,1%, in the CG — by 3,8% (p=0,049); the integral indicator of operator’s working capacity in the MG increased on average by 10.8%, in the CG — by 7,7% (p=0,039). Conclusion. The developed correctional complex with the inclusion of TES is a highly effective and safe non-pharmacological technology of emergency optimization of psychophysiological qualities and working capacity of operators.

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Correction of Deviations of Psycho-Physiological Status of Hazardous Occupations Specialists With Use of Hypoxic Gas-Air Environments

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Hypoxic training as a way of the human brain protection from the damaging effects of oxygen deficiency

Hypoxic training as a way of the human brain protection from the damaging effects of oxygen deficiency

Perspective Nonpharmacological Technologies of Optimization of Psychophysiological Qualities and Working Capacity of Operators

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