Heart rate variability at different thermal comfort levels

被引：193
作者：
Liu, Weiwei [1 ]
Lian, Zhiwei [1 ]
Liu, Yuanmou [2 ]
机构：
[1] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Coll Basic Med, Shanghai 200240, Peoples R China
来源：
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY | 2008年 / 103卷 / 03期
基金：
中国国家自然科学基金;
关键词：
sympathetic nervous system; thermal environment;
D O I：
10.1007/s00421-008-0718-6
中图分类号：
Q4 [生理学];
学科分类号：
071003 ;
摘要：
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.
引用
收藏
页码：361 / 366
页数：6
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