Abstract
Recently, a number of smartphone apps appeared that allow for heart rate measurements basing on the photoplethysmography principle. In fact, almost every smartphone now has a camera with flash that...
Highlights
A number of mobile applications appeared that allow for heart rate measurements basing on the photoplethysmography principle[1]: they measure the changing absorbance of blood inside human tissue during the heartbeat cycle
For the above-mentioned reason, the present paper aims at adding up evidence, by comparing three apps chosen among the most downloaded on two different smartphone platforms (IOs and Android), and on a broad range of heart rates measured on healthy adult subjects during physical activity
We found subject 4 being a female, with the least height, weight and BMI, and ex post we were able to examine the hands that could be qualitatively described as small. In this preliminary evaluation of reliability of heart rate measurements by means of mobile apps, we focused on one possible field of application, i.e. self-measurements during or after physical activity, done by healthy individuals that are possibly interested in fitness
Summary
A number of mobile applications (apps) appeared that allow for heart rate measurements basing on the photoplethysmography principle[1]: they measure the changing absorbance of blood inside human tissue during the heartbeat cycle. The first implementation on smartphone, using its camera and flash, has been described by Pelegris et al.[2]; a number of mobile applications are nowadays available, some of which are described in scientific literature.[3,4]. While some recent GPS watches exploit the reflectance pulse oximetry principle, their usual target is dedicated sports people. Those practising fitness or light/moderate sport activity might be interested in using a more generic device like the smartphone for casual readings of the heart rate, with some expected guarantee of reliability
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