title: OLAM: A wearable, non-contact sensor for continuous heart-rate and activity monitoring.
abstract: A wearable, multi-modal sensor is presented that can non-invasively monitor a patient's activity level and heart function concurrently for more than a week. The 4 in(2) sensor incorporates both a non-contact heartrate sensor and a 5-axis inertial measurement unit (IMU), allowing simultaneous heart, respiration, and movement monitoring without requiring physical contact with the skin [1]. Hence, this Oregon State University Life and Activity Monitor (OLAM) provides the unique opportunity to combine motion data with heart-rate information, enabling assessment of actual physical activity beyond conventional movement sensors. OLAM also provides a unique platform for non-contact sensing, enabling the filtering of movement artifacts generated by the non-contact capacitive interface, using the IMU data as a movement noise channel. Intended to be used in clinical trials for weeks at a time with no physician intervention, the OLAM allows continuous non-invasive monitoring of patients, providing the opportunity for long-term observation into a patient's physical activity and subtle longitudinal changes.
authors.affiliation: School of Electrical and Computer Engineering; Oregon State University; 1148 Kelley Engineering Center; Corvallis, OR 97331, USA.
authors.forename: Ryan K
authors.initials: RK
authors.lastname: Albright
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Goska
authors.forename: Tory M
authors.initials: TM
authors.lastname: Hagen
authors.forename: Mike Y
authors.initials: MY
authors.lastname: Chi
authors.forename: G
authors.initials: G
authors.lastname: Cauwenberghs
authors.forename: Patrick Y
authors.initials: PY
authors.lastname: Chiang
mesh_terms: D000054:Acceleration; D056044:Actigraphy / Q000295:instrumentation*; D015716:Electrocardiography, Ambulatory / Q000295:instrumentation*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D009043:Motor Activity / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013686:Telemetry / Q000295:instrumentation*; D014159:Transducers