特集 生体モニタリング技術
日常生活下における光電容積脈波のウェアラブル計測
キーワード:
photoplethysmography,
pulse interval,
time-series data,
autonomic modulation,
stress assessment
2023 年 31 巻 4 号 p. 504-509
詳細
2023 年 31 巻 4 号 p. 504-509
The photoplethysmogram is recorded non-invasively and continuously, serving as a key biological indicator for haemodynamic and autonomic regulatory functions. It's vital for assessing stress through evaluating autonomic functions. This study investigated short-term measurements using a wearable photoplethysmography device in daily scenarios and long-term measurements using a commercially available activity tracker (smartwatch). Short-term data revealed differences in stress levels through Poincaré plots of instantaneous pulse intervals. Long-term data showed variations in instantaneous pulse intervals due to differences in lifestyle, suggesting the potential to predict such variations from average pulse interval data.
