Autonomic nervous system activity under rotational shift programs: effects of shift period and gender

Rotational shifts perturb homeostatic mechanisms in a sexually dimorphic way and may compromise the activity of the autonomic nervous system during day- and night-shifts. Heart rate variability (HRV) is a non-invasive measure to assess autonomic control of the heart. Our aim in this study was to ass...

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Bibliographic Details
Published in:Industrial Health 2021/10/09, Vol.60(1), pp.62-74
Main Authors: CAKAN, Pinar, YILDIZ, Sedat
Format: Article
Language:English
Subjects:
Autonomic nervous system
Autonomic nervous system activity
EKG
Electrocardiography
Gender
Health aspects
Heart beat
Heart diseases
Heart rate
Heart rate variability
Intervals
Males
Medical research
Medicine, Experimental
Nervous system
Nervous system, Autonomic
Night
Original
Parameters
Risk factors
Rotating-shift
Sex factors in disease
Sexual dimorphism
Shift work
Stress
Very Low Frequencies
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Summary:Rotational shifts perturb homeostatic mechanisms in a sexually dimorphic way and may compromise the activity of the autonomic nervous system during day- and night-shifts. Heart rate variability (HRV) is a non-invasive measure to assess autonomic control of the heart. Our aim in this study was to assess HRV by short-term continuous electrocardiogram in female (n=40, average age: 31, average working year: 7) and male (n=40, average age: 29, average working year: 6) nurses under rotational shift programs, HRV is derived from short-term electrocardiogram recordings, carried out both at day- and night -shifts, and included time-domain [e.g., standard deviation of NN intervals, SDNN (ms); percentage of successive RR intervals that differ by more than 50 ms, pNN50 (%); root mean square of successive RR interval differences, RMSSD (ms)] and frequency-domain [very low frequency, VLF; low frequency, LF; high frequency, HF; LF/HF] parameters. Heart rates were similar across the groups but males had lower SDNN (p=0.020), RMSSD (p=0.001). pNN50 (p=0.001), VLF (p=0.048) and HF (p=0.001) but had higher LF/HF ratio (p=0.000) than females. In general, these parameters did not differ between day- and night-shifts (p
ISSN:0019-8366
1880-8026
DOI:10.2486/indhealth.2021-0029