Detection of sleep apnea using smartphone-embedded inertial measurement unit.

ABSTRACT: We previously demonstrated that sleep apnea (SA) can be detected using acceleration and gyroscope signals from smartwatches. This study investigated whether an inertial measurement unit (IMU) embedded in non-wristwatch devices, such as smartphones, can also detect SA when worn during sleep. During polysomnography (PSG), subjects wore an IMU-embedded GPS device (Amue Link^®) and/or smartphones (Xperia^® or iPhone^®) on their abdomen. Triaxial acceleration and gyroscope signals were recorded overnight. Data were split into training and test groups (2:1) for each device. An algorithm was developed in the training groups to extract respiratory movements (0.13-0.70 Hz) and detect respiratory events, which were validated in the test groups. IMU-derived respiratory e

SUBMITTER: Hayano J 

PROVIDER: S-EPMC12037849 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature