Estimation of Metabolic Activity for Lean Body Mass and for Fat Tissue at Rest during Cold Exposure
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概要
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The purpose of this study was to estimate the heat production rate for lean body mass and for fat tissue during acute cold exposure. Eight healthy young adults were investigated to determine their body composition by underwater weighing technique, basal metabolic rate and resting metabolic rate at air temperature of 13°C. There were no thin or obese men in the subjects (mean values of 12.3% in the fat content of body weight). Resting metabolic rate at the end of 90 minutes cold exposure was greater than basal metabolic rate by 31%. With use oflinear model of total heat production on two components of a body, heat production rate for fat tissue was calculated to be the proportion of 28% to total heat production in the basal state and to be very high under the cold environment. Though these results depended on the basis of calculation, fat tissue was supposed to have a trend of increase in metabolic activity during cold exposure.
- 日本生理人類学会の論文
日本生理人類学会 | 論文
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