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Shumov D.E.

Institute of Higher Nervous Activity and Neurophysiology of the Russian Academy of Sciences;
Medical Institute of Peoples’ Friendship University of Russia

Sveshnikov D.S.

Medical Institute of Peoples’ Friendship University of Russia

Kuznetsov D.N.

Donetsk National Technical University

Yakunina E.B.

Medical Institute of Peoples’ Friendship University of Russia

Bakaeva Z.V.

Medical Institute of Peoples’ Friendship University of Russia

Tokareva L.G.

Medical Institute of Peoples’ Friendship University of Russia

Izmailov D.Yu.

Lomonosov Moscow State University Medical Research and Education Institute

The effect of examination stress on students’ nocturnal sleep metrics studied with custom ECG holter and accelerometer

Authors:

Shumov D.E., Sveshnikov D.S., Kuznetsov D.N., Yakunina E.B., Bakaeva Z.V., Tokareva L.G., Izmailov D.Yu.

More about the authors

Journal: S.S. Korsakov Journal of Neurology and Psychiatry. 2025;125(7): 122‑129

DOI: 10.17116/jnevro2025125071122

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Table of contents

THE EFFECT OF EXAMINATION STRESS ON STUDENTS’ NOCTURNAL SLEEP METRICS STUDIED WITH CUSTOM ECG HOLTER AND ACCELEROMETER
THE EFFECT OF EXAMINATION STRESS ON STUDENTS’ NOCTURNAL SLEEP METRICS STUDIED WITH CUSTOM ECG HOLTER AND ACCELEROMETER

To cite this article:

Shumov DE, Sveshnikov DS, Kuznetsov DN, Yakunina EB, Bakaeva ZV, Tokareva LG, Izmailov DYu. The effect of examination stress on students’ nocturnal sleep metrics studied with custom ECG holter and accelerometer. S.S. Korsakov Journal of Neurology and Psychiatry. 2025;125(7):122‑129. (In Russ.)
https://doi.org/10.17116/jnevro2025125071122

Подписка 2026 Журнал неврологии и психиатрии им. С.С. Корсакова (S.S. Korsakov Journal of Neurology and Psychiatry)
 
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Использование инфографики авторами научных работ
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Abstract:

OBJECTIVE

To study the effect of examination stress on nocturnal sleep metrics that can be derived from electrocardiogram (ECG) and accelerometer data.

MATERIAL AND METHODS

An individual 8-digit, 500 Hz wearable device has been developed to record ECG and 3-channel accelerometer data stream. The device has provided diurnal group monitoring of 29 subjects both in semester training and in the examination session. The data collected were analysed to determine the heart rate variability metrics (based on ECG data), total sleep time and sleep movement activity metrics (based on accelerometer data).

RESULTS

The statistical analysis of data obtained has established that the state of examination stress, even in sleep, leads to increase of the central influence on ANS. It results in an increase in energy of the sleep low-amplitude movements, on the background of total sleep time reduction.

CONCLUSION

Two metrics to be derived from the accelerometer data have been introduced to determine the influence of various factors on human sleep. Those are arousal index and low-amplitude movement energy.

Keywords:

actigraph
sleep
heart rate variability (HRV)
stress

Authors:

Shumov D.E.

Institute of Higher Nervous Activity and Neurophysiology of the Russian Academy of Sciences;
Medical Institute of Peoples’ Friendship University of Russia

Sveshnikov D.S.

Medical Institute of Peoples’ Friendship University of Russia

Kuznetsov D.N.

Donetsk National Technical University

Yakunina E.B.

Medical Institute of Peoples’ Friendship University of Russia

Bakaeva Z.V.

Medical Institute of Peoples’ Friendship University of Russia

Tokareva L.G.

Medical Institute of Peoples’ Friendship University of Russia

Izmailov D.Yu.

Lomonosov Moscow State University Medical Research and Education Institute

Received:

10.02.2025

Accepted:

17.02.2025

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