This research study deals with the design and development of non-invasive and reflectance type
(photoplethysmogram) wearable PPG prototype for measuring heart rate.It explains the processing
of heart rate from the measured PPG signal.Illustrates the heart rate measurements at different
measurement sites.Explains benchmarking of realtime measured heart rate with other standard
heart rate measuring units.Presents the heart rate measurements during different actions of
swimming when the prototype is mounted on the forhead of swimmer.