access icon openaccess Lightweight wrist photoplethysmography for heavy exercise: motion robust heart rate monitoring algorithm

The challenge of heart rate monitoring based on wrist photoplethysmography (PPG) during heavy exercise is addressed. PPG is susceptible to motion artefacts, which have to be mitigated for accurate heart rate estimation. Motion artefacts are particularly apparent for wrist devices, for example, a smart watch, because of the high mobility of the arms. Proposed is a low complexity highly accurate heart rate estimation method for continuous heart rate monitoring using wrist PPG. The proposed method achieved 2.57% mean absolute error in a test data set where subjects ran for a maximum speed of 17 km/h.

Inspec keywords: photoplethysmography; body sensor networks; watches; patient monitoring; medical signal processing

Other keywords: accurate heart rate estimation; lightweight wrist photoplethysmography; low complexity-highly accurate heart rate estimation; test data set; motion artefacts; smart watch; mean absolute error; heavy exercise; motion robust heart rate monitoring algorithm

Subjects: Optical and laser radiation (medical uses); Optical and laser radiation (biomedical imaging/measurement); Wireless sensor networks; Digital signal processing; Sensing devices and transducers; Haemodynamics, pneumodynamics; Time and frequency measurement; Sensing and detecting devices; Biology and medical computing; Patient diagnostic methods and instrumentation; Time measurement; Signal processing and detection

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http://iet.metastore.ingenta.com/content/journals/10.1049/htl.2014.0097
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