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1. (WO2018221750) SLEEP DETERMINING DEVICE, SLEEP DETERMINING METHOD, AND SLEEP DETERMINING PROGRAM

Pub. No.:    WO/2018/221750    International Application No.:    PCT/JP2018/021420
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue Jun 05 01:59:59 CEST 2018
IPC: A61B 5/16
A61B 5/0245
Applicants: KEIO UNIVERSITY
学校法人慶應義塾
Inventors: MITSUKURA, Yasue
満倉 靖恵
YASUI, Masato
安井 正人
FUKUNAGA Koichi
福永 興壱
FURUKAWA Toshiharu
古川 俊治
Title: SLEEP DETERMINING DEVICE, SLEEP DETERMINING METHOD, AND SLEEP DETERMINING PROGRAM
Abstract:
[Problem] To provide a sleep determining device, a sleep determining method, and a sleep determining program, which can determine a sleep stage accurately and in detail. [Solution] A sleep determining device according to the present invention is provided with: a heart rate data acquiring unit which, on the basis of heart rate data from the body of a user, acquires the ratio between very low frequency (VLF) components, low frequency (LF) components, and high frequency (HF) components of the heart rate, the average of heartbeat intervals (RRI), and the standard deviation of heartbeat intervals (RRI) as heart rate fluctuation parameters representing the state of the heart rate; and a sleep state determining means that determines which one among a first non-REM sleep stage and a second non-REM sleep stage the heart rate fluctuation parameters of the user correspond to on the basis of a first determination condition that is set on the basis of the correlation between the heart rate fluctuation parameters and the first non-REM sleep stage, and a second determination condition that is set on the basis of the correlation between the heart rate fluctuation parameters and the second non-REM sleep stage.