寒冷環境における体温調節応答と質問紙による主観的寒冷耐性の関係

Translated title of the contribution: Relationships between self-identified cold tolerance with a questionnaire and thermoregulatory responses in cold environment

若林 斉, 江原 佑, 松本 健太郎, 小堀 祐資, 前田 享史, 松下 真美, 亀谷 俊満, 斉藤 昌之

Research output: Contribution to journalArticle

Abstract

This study investigated relationships between self-identified cold tolerance with a questionnaire and thermoregulatory responses in cold environment, and personal morphological and life style characteristics. We conducted three experiments on 20 healthy males (21.9 yrs, 173.6 cm, 61.6 kg, 14.1% body fat). First, cluster analysis on a questionnaire survey was carried out to divide them into two self-identified cold tolerance groups. Second, we measured physiological responses in cold environment with acute cold exposure experiment. Third, BAT (brown adipose tissue) activity was evaluated by FDG (18F-fluorodeoxy glucose) –PET/CT method. As a result of cluster analysis, subjects were divided into the high self-identified cold tolerance group (n=9, 21.3 yrs, 174.2 cm, 64.7 kg, 14.1% body fat) and the low group (n=11, 22.3 yrs, 173.1 cm, 59.0 kg, 14.1% body fat). Skeletal muscle mass of the high group is significantly higher than that of the low group (P<0.05). However, there was no significant difference in BAT activity. The high group tended to show higher thermogenesis at rest and maintained higher core temperature in cold exposure test. The low group had a tendency to adapt by behavioral thermogenesis because skin and core temperature decreased more in cold environment.
Translated title of the contributionRelationships between self-identified cold tolerance with a questionnaire and thermoregulatory responses in cold environment
Original languageJapanese
Pages (from-to)165-166
Number of pages2
Journal人間‐生活環境系シンポジウム報告集
Volume43
Issue number0
DOIs
Publication statusPublished - 2019

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