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Sleep–wake behavior of shift workers using wrist actigraph
Author(s) -
Park Young Man,
Matsumoto Kazuya,
Seo Yoo Jin,
Cho Yong Rai,
Noh Tae Jeong
Publication year - 2000
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1046/j.1440-1819.2000.00714.x
Subject(s) - nap , wrist , sleep (system call) , shift work , psychology , circadian rhythm , audiology , physical medicine and rehabilitation , physical therapy , medicine , social psychology , psychiatry , computer science , surgery , operating system
The sleep–wake behavior and the effects of aging on the tolerance of night shift were investigated using wrist actigraph for 12 Korean male workers of a continuous full‐day three‐team three‐shift system. The wrist actigraph data were obtained for about 21 days (1 shift cycle) for each subject. During night duty, total sleep time decreased, the number of naps and nap length during on‐duty or off‐duty periods increased, and the level of activity decreased with increasing age. These results suggest that the tolerance to night shift becomes weaker with increasing age.