Inhibition of Heart Rate Variability during Sleep in Humans by 6700 K Pre-sleep Light Exposure
-
- Ishibashi Keita
- Faculty of Design, Kyushu University
-
- Kitamura Shingo
- User Science Institute, Kyushu University
-
- Kozaki Tomoaki
- User Science Institute, Kyushu University
-
- Yasukouchi Akira
- Faculty of Design, Kyushu University
この論文をさがす
抄録
Two different spectral analyses of heart rate (HR) variability (HRV) were performed on seven young male subjects to evaluate the effects of different color temperatures of light exposure (6700 K, 5000 K, 3000 K) before sleep on cardiac vagal activity. In investigating HRV, we used an ordinary fast Fourier transform (FFT) and coarse graining spectral analysis (CGSA), which selectively extracts random fractal components from a given time series. The results showed that suppressions of HR during sleep after 6700 K light exposure were more inhibited than the other two lighting conditions. Increases in high-frequency (HF) components of HRV during sleep were also inhibited by 6700 K pre-sleep lighting. These results indicate that pre-sleep exposure to light of a higher color temperature may inhibit the enhancement of cardiac vagal activity during sleep. Moreover, significant HF alterations were shown in fractal-free HF (not in ordinary HF) components by CGSA. Because the HF component originates from respiratory sinus arrhythmia with periodical fluctuations, CGSA may be an appropriate approach for HRV evaluation during sleep.
収録刊行物
-
- Journal of PHYSIOLOGICAL ANTHROPOLOGY
-
Journal of PHYSIOLOGICAL ANTHROPOLOGY 26 (1), 39-43, 2007
日本生理人類学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001205254292352
-
- NII論文ID
- 110006164347
-
- NII書誌ID
- AA12113950
-
- COI
- 1:STN:280:DC%2BD2s%2Fot1ylug%3D%3D
-
- ISSN
- 18806805
- 18806791
-
- PubMed
- 17283391
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- PubMed
- NDL-Digital
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可