Introduction - If you have any usage issues, please Google them yourself
revolution in this industry is the use of green light reflection photoplethysmography
(PPG) which can be measured with a watch worn
on the wrist. With PPG, heart rate is detected through measurement
of changes in blood volume using either transmission or reflection of
specific wavelengths of light [4].
In this study, we investigated the usability of a readily available optical
heart rate sensor fromthe fitness industry for heart ratemonitoring
in amedical setting.We compared the performance of the optical heart
rate sensor with that of