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Analysis of Inter-Beat Intervals from Wrist Pulse Signals

According to World Health Organisation (WHO), a large population of this age is affected by cardiovascular illnesses. Detection of cardiac arrhythmias at an earlier stage plays an important role in cardiac assessment and treatment. Continuous and accurate measurement of the pulse signal becomes essential as it provides information about the regularity of the heartbeat and pulse strength. A pulse recording system which is low powered, easy to access in the home environment and portable will serve the purpose. This paper describes the design and implementation of a wrist pulse acquisition system. System validation results and detailed analysis of the heart rate and average period of a cardiac cycle calculated using different fiducial points are also presented.