Author
SKORNYAKOV, ElenaGADDAMEEDHI, Shobhan
PAECH, Gemma M.
SPARROW, Amy R.
Satterfield, Brieann C.
SHATTUCK, Nita L.
LAYTON, Matthew E.
KARATSOREOS, Ilia
Van Dongen, Hans P. A.

Affiliation
Univ Arizona, Social Cognit & Affect Neurosci Lab, Dept Psychiat, Coll MedIssue Date
2019-02Keywords
Night shiftHuman sleep
Circadian misalignment
Parasympathetic nervous system
Sympathetic nervous system
Vagal tone
Heart rate variability
Metadata
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ELSEVIER GMBHCitation
SKORNYAKOV, E., GADDAMEEDHI, S., PAECH, G. M., SPARROW, A. R., SATTERFIELD, B. C., SHATTUCK, N. L., ... & VAN DONGEN, H. P. (2018). Cardiac autonomic activity during simulated shift work. Industrial health.Journal
BASIC AND APPLIED ECOLOGYRights
©2019 National Institute of Occupational Safety and Health. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Shift work leads to adverse health outcomes including increased risk of cardiovascular disease. Heart rate (HR) and heart rate variability (HRV) arc measures of cardiac autonomic activity and markers of cardiovascular disease and mortality. To investigate the effects of shift work on cardiac autonomic activity, we assessed the influence of simulated night work on HR and HRV, and dissociated the direct effects of circadian misalignment from those of sleep displacement and altered physical activity patterns. A total of 29 subjects each participated in one of two in-laboratory, simulated shift work studies. In both studies, EKG was continuously monitored via Holter monitors to measure HR and the high frequency (HF) component of HRV (HF-HRV). We found endogenous circadian rhythmicity in HR and HF-HRV. Sleep and waking physical activity, both displaced during simulated night work, had more substantial, and opposite, effects on HR and HF-HRV. Our findings show systematic but complex, interacting effects of time of day, sleep/wake state, and physical activity on cardiac autonomic activity. These effects need to be taken into account when evaluating HR and HRV in shift work settings and when interpreting these measures of cardiac autonomic activity as markers of cardiovascular disease.Note
Open access articleISSN
0019-83661880-8026
Version
Final published versionSponsors
College of Pharmacy and Pharmaceutical Sciences at Washington State University; Naval Postgraduate School award [N62271-13-M-1228]; Congressionally Directed Medical Research Program [W81XWH-16-1-0319]ae974a485f413a2113503eed53cd6c53
10.2486/indhealth.2018-0044