The sleeping positions that affect the heartbeat signal for normal subjects

This research studies the properties of heart rate and we have designed and developed a prototype system for the measurement of heart rate using a simple technique with a pulsed sensor that features an optical sensor. In which we compared the results with measurements with an electrocardiogram using a basic method. Design and development of electronic circuits, such as pulsed heart wave comparison and amplification circuits, connected to a 10-bit microcontroller processor. We got results that are close to the pulse signal. Subsequently, we determined the sleeping position of 20 subjects, each sexually assorted. To find the middle mean and then experiment again according to the sleeping position we determined as follows. The first position is supine position. The second position is prone position. The third position is right lateral recumbent position. The fourth position is left lateral recumbent position. After the experiment, we ran a questionnaire and made comparisons with commercial tools. We found that the subjects were 95% satisfied and confident. Our prototype system was able to record data and be portable.