期刊
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
卷 60, 期 4, 页码 521-529出版社
SPRINGER
DOI: 10.1007/s00484-015-1048-0
关键词
Self-identified cold tolerance; CIVD; Thermal lifestyle; Questionnaire; Acclimatization
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2014 R1A2A2A03006522]
This study was conducted to investigate relationships of self-identified cold tolerance and cold-induced vasodilatation (CIVD) in the finger. Nine males and 34 females participated in the following 2 tests: a CIVD test and a self-reported survey. The CIVD test was conducted 30-min cold-water immersion (3.8 +/- A 0.3 A degrees C) of the middle finger at an air temperature of 27.9 +/- A 0.1 A degrees C. The self-reported questionnaire consisted of 28 questions about whole and local body cold and heat tolerances. By a cluster analysis on the survey results, the participants were divided into two groups: high self-identified cold tolerance (HSCT, n = 25) and low self-identified cold tolerance (LSCT, n = 18). LSCT had lower self-identified cold tolerance (P < 0.001), preferred hot thermal stimulation (P = 0.006), and wore heavier clothing during daily life (P < 0.001) than HSCT. LSCT had significantly lower maximal finger temperatures (T (max)) (P = 0.040), smaller amplitude (P = 0.029), and delayed onset time of CIVD (P = 0.080) when compared to HSCT. Some questions examining the self-identified cold or heat tolerance had relationships with cold tolerance index, T (max), and amplitude (P < 0.1). These results indicate that self-identified cold tolerance classified through a standardized survey could be a good index to predict physiological cold tolerance.
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