Abstract
Lower ambient temperature (T ) requires greater energy expenditure to sustain body temperature. However, effects of T on human energetics may be buffered by environmental modification and behavioral compensation. We used the IAEA DLW database for adults in the USA (n = 3213) to determine the effect of T (-10 to +30°C) on TEE, basal (BEE) and activity energy expenditure (AEE) and physical activity level (PAL). There were no significant relationships (p > 0.05) between maximum, minimum and average T and TEE, BEE, AEE and PAL. After adjustment for fat-free mass, fat mass and age, statistically significant (p < 0.01) relationships between TEE, BEE and T emerged in females but the effect sizes were not biologically meaningful. Temperatures inside buildings are regulated at 18-25°C independent of latitude. Hence, adults in the US modify their environments to keep TEE constant across a wide range of external ambient temperatures. [Abstract copyright: © 2022 The Authors.]
Original language | English |
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Pages (from-to) | 104682 |
Journal | iScience |
Volume | 25 |
Issue number | 8 |
DOIs | |
Publication status | Published - 28 Jun 2022 |
Bibliographical note
Funding Information:The DLW database, which can be found at https://www.dlwdatabase.org , is hosted by the International Atomic Energy Agency (IAEA) and generously supported by Taiyo Nippon Sanso and SERCON . We are grateful to the IAEA and these companies for their support. XYZ was supported by the Chinese Academy of Sciences (grant CAS 153E11KYSB20190045 to J.R.S.), and the database was also supported by the US National Science Foundation (grant BCS-1824466 to H.P.). The funders played no role in the content of this manuscript.
Funding Information:
The DLW database, which can be found at https://www.dlwdatabase.org, is hosted by the International Atomic Energy Agency (IAEA) and generously supported by Taiyo Nippon Sanso and SERCON. We are grateful to the IAEA and these companies for their support. XYZ was supported by the Chinese Academy of Sciences (grant CAS 153E11KYSB20190045 to J.R.S.), and the database was also supported by the US National Science Foundation (grant BCS-1824466 to H.P.). The funders played no role in the content of this manuscript. Analyzed the data and wrote the paper: XYZ, JRS. Commented on paper drafts and provided insights to analysis: YY, HS, MB, SKD, WEK, GP, SBR, SSU, WWW, HP, DAS, KRW. Compiled the database, JRS, AHL, HP, JR, DAS, HS, KRW, WWW, YY, AJM-A, CL, Contributed data to the database, PNA, EEB, MSB, GLC, JAC, SKD, LRD, MG, AEH, SMH, NJ, PK, WEK, RFK, WRL, CB, EPM, MLN, RMO, YPP, GP, RLP, SBR, ER, LMR, RMR, SBR, LBS, AMS, ES, SSU, EAvM, BMW, AJM-A, CL, AHL, HP, JR, HS, DAS, JRS, KRW, WWW, YY. The authors declare no conflicts of interest.
Publisher Copyright:
© 2022 The Authors
Keywords
- Human metabolism
- Human Physiology
- Human activity in medical context