RESUMO
The effect of normobaric hypoxic hypoxia (single and interval training) on the characteristics of human hearing was investigated. The hearing thresholds (tonal audiograms), reaction time of subjects in psychophysical experiments (pause detection, perception of rhythm and target words), and short-term auditory memory were measured before and after hypoxia. The obtained data revealed improvement of the auditory sensitivity and characteristics of working memory, and increasing of response speed. It was demonstrated that interval hypoxic training had positive effect on the processes of auditory perception.
Assuntos
Percepção Auditiva , Hipóxia/fisiopatologia , Adolescente , Adulto , Feminino , Humanos , MasculinoRESUMO
Heart rate variability (HRV) during the head-up tilt test (HUT) was investigated using an automated set of dynamic positioning in the gravitational field. The theory of wavelets is applied to find the dynamics of changes in the spectral properties of rhythmogran during the transitional phases of HUT. Quantitative parameters (spectral integrals, instantaneous maximal frequencies, nonstationarity factors), that describe transitive stages of such non-stationary head-up tilt test, are calculated.