title: Estimation of sleep posture using a patch-type accelerometer based device.
abstract: In this study, we developed a sleep posture estimation algorithm using 3-axis accelerometer signals measured from a patch-type sensor. Firstly, we inspected the characteristics of accelerometer signals for different sleep postures. Based on the results, we established decision rules to estimate 5 postures containing supine, left, right lateral, prone postures, and non-sleep postures such as sitting and standing. The algorithm was tested by the data from thirteen subjects during night time PSG. As a result, the algorithm estimated sleep postures with an average agreement of 99.16%, and cohen's kappa of 0.98 compared with reference sleep postures determined by position sensor and video recording. The proposed method with the device could be used as supportive purpose in routine PSG study and out-of-hospital environment.
authors.forename: Heenam
authors.initials: H
authors.lastname: Yoon
authors.forename: Suhwan
authors.initials: S
authors.lastname: Hwang
authors.forename: Dawoon
authors.initials: D
authors.lastname: Jung
authors.forename: Sangho
authors.initials: S
authors.lastname: Choi
authors.forename: Kwangmin
authors.initials: K
authors.lastname: Joo
authors.forename: Jaewon
authors.initials: J
authors.lastname: Choi
authors.forename: Yujin
authors.initials: Y
authors.lastname: Lee
authors.forename: Do-Un
authors.initials: DU
authors.lastname: Jeong
authors.forename: Kwangsuk
authors.initials: K
authors.lastname: Park
mesh_terms: D061725:Accelerometry / Q000295:instrumentation* / Q000379:methods; D000328:Adult; D000465:Algorithms; D004562:Electrocardiography; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011187:Posture / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted; D012890:Sleep / Q000502:physiology*; D014741:Video Recording