Evaluation of heart and respiratory rates using photoplethysmogram during bathing

6 References
  • SHOJI Ken
    Department of Mechanical Engineering, School of Science and Engineering, Waseda University
  • TAMURA Toshiyo
    Institute for Medical and Dental Engineering, Tokyo Medical and Dental University
  • OGAWA Mitsuhiro
    Institute for Medical and Dental Engineering, Tokyo Medical and Dental University
  • OTA Manabu
    Department of Mechanical Engineering, School of Science and Engineering, Waseda University
  • OCHIAI Shiro
    Department of Mechanical Engineering, School of Science and Engineering, Waseda University
  • TOGAWA Tatsuo
    Institute for Medical and Dental Engineering, Tokyo Medical and Dental University
  • TSUCHIYA Kiichi
    Department of Mechanical Engineering, School of Science and Engineering, Waseda University

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Other Title
  • 在宅健康モニタリングのための光電脈波法による入浴時の心拍数・呼吸数計測

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Description

For the purpose of the home health monitoring, heart and respiratory rates during bathing was attempted. It's known photoplethysmogramy (PPG) signal includes both heart and respiratory components. Therefore resiratory rate can be obtained from the PPG signal. In experimental procedure, the PPG signal was measured with optical fiber, and to evaluate respiratory component, plethysmogram respiratory rate was measured by thermistor simultaneously. Then obtained signals was analyzed by means of FFT and wavelet transformations. Especially, correlation between PPG and respiratory rate was examined during bathing. As a result, respiratory rate obtained by nosal thermistor was evaluated from the analyzed PPG signal at rest and during bathing. Now, measuring respiratory rate was possible with unrestrained, and possibility of health mnitoring during bathing was suggested.

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