Factors Affecting Coordination between Heart Rate Variability and Physical Acceleration in Daily Lives of Free-moving Adults

DOI 被引用文献1件 参考文献16件 オープンアクセス
  • Taniguchi Kentaro
    Department of Cardiac Physiology, National Cerebral and Cardiovascular Research Center Human Health Sciences, Graduate School of Medicine, Kyoto University
  • Shimouchi Akito
    Department of Cardiac Physiology, National Cerebral and Cardiovascular Research Center
  • Seki Junji
    Organization for Research and Development of Innovative Science and Technology, Kansai University
  • Jinno Naoya
    Department of Cardiac Physiology, National Cerebral and Cardiovascular Research Center
  • Shirai Mikiyasu
    Department of Cardiac Physiology, National Cerebral and Cardiovascular Research Center
  • Seiyama Akitoshi
    Human Health Sciences, Graduate School of Medicine, Kyoto University

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The aim of this study was to identify factors affecting the relationship between heart rate variability (HRV) and physical acceleration (PA) in daily lives of free-moving adults. In 65 subjects comprising 18 young (20 to 39 years), 26 middle-aged (40 to 59 years), and 21 elderly (≥ 60 years) subjects, ECG R-R intervals and PA data were simultaneously obtained every minute for 24 hours as the subjects went about their normal daily lives. The R-R intervals were subjected to linear frequency domain analysis, and the low frequency (LF)/high frequency (HF) and HF/(LF+HF) ratios were used as HRV indices. Lag was defined as the time difference that gave maximum cross-correlation between the HRV parameters and PA. The proportion of subjects who exhibited no lag was significantly higher in young subjects, and was significantly lower in elderly subjects. After waking, the proportion of subjects who exhibited no lag tended to decrease in all groups. The lag between HRV and PA correlated significantly with psychological conditions and/or mental stress.

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