TY - JOUR
T1 - Circadian Activity Rhythms and Sleep in Nurses Working Fixed 8-hr Shifts
AU - Kang, Jiunn-Horng
AU - Miao, Nae-Fang
AU - Tseng, Ing Jy
AU - Sithole, Trevor
AU - Chung, Min-Huey
N1 - Publisher Copyright:
© The Author(s) 2014.
PY - 2015/5/4
Y1 - 2015/5/4
N2 - Shift work is associated with adverse health outcomes. The aim of this study was to explore the effects of shift work on circadian activity rhythms (CARs) and objective and subjective sleep quality in nurses. Female day-shift (n = 16), evening-shift (n = 6), and night-shift (n = 13) nurses wore a wrist actigraph to monitor the activity. We used cosinor analysis and time–frequency analysis to study CARs. Night-shift nurses exhibited the lowest values of circadian rhythm amplitude, acrophase, autocorrelation, and mean of the circadian relative power (CRP), whereas evening-shift workers exhibited the greatest standard deviation of the CRP among the three shift groups. That is, night-shift nurses had less robust CARs and evening-shift nurses had greater variations in CARs compared with nurses who worked other shifts. Our results highlight the importance of assessing CARs to prevent the adverse effects of shift work on nurses’ health.
AB - Shift work is associated with adverse health outcomes. The aim of this study was to explore the effects of shift work on circadian activity rhythms (CARs) and objective and subjective sleep quality in nurses. Female day-shift (n = 16), evening-shift (n = 6), and night-shift (n = 13) nurses wore a wrist actigraph to monitor the activity. We used cosinor analysis and time–frequency analysis to study CARs. Night-shift nurses exhibited the lowest values of circadian rhythm amplitude, acrophase, autocorrelation, and mean of the circadian relative power (CRP), whereas evening-shift workers exhibited the greatest standard deviation of the CRP among the three shift groups. That is, night-shift nurses had less robust CARs and evening-shift nurses had greater variations in CARs compared with nurses who worked other shifts. Our results highlight the importance of assessing CARs to prevent the adverse effects of shift work on nurses’ health.
KW - circadian activity power
KW - frequency–time analysis
KW - shift workers
KW - sleep
UR - http://www.scopus.com/inward/record.url?scp=84930408939&partnerID=8YFLogxK
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U2 - 10.1177/1099800414549454
DO - 10.1177/1099800414549454
M3 - Article
C2 - 25332463
AN - SCOPUS:84930408939
SN - 1099-8004
VL - 17
SP - 348
EP - 355
JO - Biological Research for Nursing
JF - Biological Research for Nursing
IS - 3
ER -