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Heart rate variability at different thermal comfort levels.
- Source :
-
European Journal of Applied Physiology . Jun2008, Vol. 103 Issue 3, p361-366. 6p. 2 Charts, 3 Graphs. - Publication Year :
- 2008
-
Abstract
- The mechanism of human thermal comfort is important for building a comfortable and healthy indoor environment. This paper analyzes human heart rate variability (HRV) at different thermal comfort levels and discusses the mechanism of human thermal comfort. A total of 33 subjects were divided in 3 groups. Under air temperatures of 21, 24, 26, 28, 29, and 30 degrees C, the subjects' electrocardiogram was recorded for 5 min. HRV (the ratio of absolute powers in low- and high-frequency bands, LF/HF ratio) was analyzed. LF/HF at discomfort level were significantly higher than that at comfort level (P < 0.05), despite the same thermal sensation. The results indicate that sympathetic activity plays an important role in subjects' thermal discomfort and the LF/HF ratio may be used as an indicator for human thermal comfort. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14396319
- Volume :
- 103
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- European Journal of Applied Physiology
- Publication Type :
- Academic Journal
- Accession number :
- 31648282
- Full Text :
- https://doi.org/10.1007/s00421-008-0718-6