title: The differences in waveform between photoplethysmography pulse wave and radial pulse wave in movement station.
abstract: OBJECTIVE
  There are many similarities between the photoplethysmography(PPG) pulse wave and the radial pulse when a body is in a stationary state, but the difference between them under conditions of movement is not yet clear. Finding these differences may help further understanding of the cardiovascular system.
  
  
  METHODS
  PPG and radial pulse wave were recorded simultaneously while subjects were conducting a bicycle exercise test that included the resting and exercise state, while the K and K' parameters were being acquired from the PPG and radial pulse, respectively. Furthermore, the pulse objective pattern is observed via the time domain waveform and XY graph.
  
  
  RESULTS
  When the body's state of movement changes dramatically, there is a time difference between the pulse parameter K and the pulse amplitude, and the difference of the pulse pattern is enhanced during the exercising phase.
  
  
  CONCLUSIONS
  Radial pulse waves are not the same as PPG during exercise in either the pulse parameter or the pulse pattern. This information can be used to further evaluate the state of arterial circulation and microcirculation.
authors.affiliation: College of Life Science and Bio-Engineering, Beijing University of Technology, Beijing 100124, China.
authors.forename: Kun
authors.initials: K
authors.lastname: Li
authors.affiliation: College of Life Science and Bio-Engineering, Beijing University of Technology, Beijing 100124, China.
authors.forename: Song
authors.initials: S
authors.lastname: Zhang
authors.affiliation: College of Life Science and Bio-Engineering, Beijing University of Technology, Beijing 100124, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Yang
authors.affiliation: College of Life Science and Bio-Engineering, Beijing University of Technology, Beijing 100124, China.
authors.forename: Zhichang
authors.initials: Z
authors.lastname: Luo
authors.affiliation: College of Life Science and Bio-Engineering, Beijing University of Technology, Beijing 100124, China.
authors.forename: Guanxiong
authors.initials: G
authors.lastname: Gu
mesh_terms: D001794:Blood Pressure / Q000502:physiology*; D001795:Blood Pressure Determination / Q000379:methods; D001810:Blood Volume / Q000502:physiology*; D001811:Blood Volume Determination / Q000379:methods*; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology*; D017156:Photoplethysmography / Q000379:methods*; D011673:Pulsatile Flow / Q000502:physiology*; D063177:Pulse Wave Analysis / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D055815:Young Adult
keywords: photoplethysmography(PPG); radial pulse wave; waveform parameter; waveform pattern