Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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CHANGE OF FUNCTIONING OF CARDIORESPIRATORY SYSTEM AT IMPACT OF WHITE NOISE

Dimitriev D.A. 1 Indeykina O.S. 1 Dimitriev A.D. 2
1 I.Y. Yakovlev Chuvash State Pedagogical University
2 Cheboksary Cooperative Institute (affiliate) of the Russian University of Cooperation
Although there have been many studies on health effects of noise, studies on the relationship between white noise and cardiorespiratory function are limited. In the present study, we examined whether white noise affects induced changes in functioning of cardiorespiratory system in thirty-two university female students. The white noise was binaurally presented through headphones. The test intensity of white noise was 60 dBA. Beat-to-beat R-R intervals and respiratory signals were continuously recorded prior to and during the exposure to noise. Comparative analysis of the significance of heart rate showed that noise exposure causes an increase in heart rate (Z = 2,04; p <0.05). Hearing while noise results significant decrease of high-frequency power (HF) (Z=2,12; р<0,05). The ratio of LF to HF power of white noise was significantly greater than the rest condition (Z=2,02; р<0,05). Statistically significant changes in respiratory rate were found for white noise (Z=2,69; р<0,01). The instant autonomic responses to white noise can be detected using analysis of heart rate variability.