August 2014
Intermediate to advanced
656 pages
23h 27m
English
Mathieu Lemay, Mattia Bertschi, Josep Sola, Philippe Renevey, Jakub Parak and Ilkka Korhonen, Tampere University of Technology, Tampere, Finland
The present chapter is dedicated to a novel family of sensors used for heart-rate monitoring. Based on the so-called photoplethysmographic technology, optical heart-rate monitors open the door to the comfortable and continuous monitoring of health status during daily life. Either integrated within a wrist-worn device, an arm band, or a chest patch, optical heart-rate monitors are capable of accurately measuring heart rate by assessing the arterial pulsatility of underlying skin vascular beds. After reviewing the physical and physiological background ...