What is segmented sleep? Actigraphy field validation for daytime sleep and nighttime wake

Sleep Health
David R SamsonCharles L Nunn

Abstract

To compare different scoring parameter settings in actigraphy software for inferring sleep and wake bouts for validating analytical techniques outside of laboratory environments. To identify parameter settings that best identify napping during periods of wakefulness, we analyzed 137 days on which participants reported daytime napping, as compared with a random subset of 30 days when no naps were reported. To identify settings that identify periods of wakefulness during sleep, we used data from a subsample of women who reported discrete wake bouts while nursing at night. Equatorial Tanzania in January to February 2016. The Hadza-a non-industrial foraging population. Thirty-three subjects participated in the study for 393 observation days. Using the Bland-Altman technique to determine concordance, we analyzed reported events of daytime napping and nighttime wake bouts. Only 1 parameter setting could reliably detect reported naps (15-minute nap length, ≤50 counts). Moreover, of the 6 tested parameter settings to detect wake bouts, the setting where the sleep-wake algorithm was parameterized to detect 20 consecutive minutes throughout the designated sleep period did not overestimate or underestimate wake bouts, had the lowest mean ...Continue Reading

Citations

Jul 5, 2018·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·Jessica CastnerSanjay Sethi
Jul 11, 2019·Scientific Reports·Kathleen D ReinhardtK Anne-Isola Nekaris
Aug 29, 2019·Primates; Journal of Primatology·Emilie MelvinCharles L Nunn
Sep 19, 2020·International Journal of Sports Medicine·Victor Sanz-MiloneAndrea Maculano Esteves
Jan 8, 2017·American Journal of Physical Anthropology·David R SamsonCharles L Nunn
Feb 10, 2017·American Journal of Human Biology : the Official Journal of the Human Biology Council·David R SamsonCharles L Nunn
Jul 3, 2021·Scientific Reports·Erica KiliusAdam H Boyette

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