The Characteristics of Peripheral Blood Flow Velocity Measured by a Semiconductor Hall Device Clip-Type Pulsimeter and PPG for the Effect of Shoulder Thermal Treatment

Abstract

The average life expectancy of modern people is rapidly increasing due to the development of medicine. The shoulder thermotherapy device (STD) used as a home medical device is studied for the purpose of relieving muscle pain in the upper part of the human body. The peripheral blood flow velocity (PBFV) could be measured from the two waveforms obtained by simultaneously measuring the pulse waves obtained by using a Hall element clip-type pulsimeter in the radial artery of the wrist and a photo-plethysmography (PPG) in the finger. Two women in their 20s with normal blood pressure used the STD by twice per a week for 13 weeks and compared before, middle, and after treatment, the PBFV improved by 12% to 17%.