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Cited by 30Thermoregulation and physiological responsesCardiovascular and exercise physiologyExercise and Physiological Responses

Effects of obesity on body temperature in otherwise-healthy females when controlling hydration and heat production during exercise in the heat

Adams, J. D., Ganio, Matthew S., Burchfield, Jenna M., Matthews, Andy C., Werner, Rachel N., Chokbengboun, Amanda J., Dougherty, Erin K., LaChance, Alex A.·2015·European Journal of Applied Physiology
DOI 10.1007/s00421-014-3002-y
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Abstract

Background Previous studies investigating body temperature responses in obese individuals during exercise in the heat fail to control metabolic heat production or hydration status during exercise.Purpose To determine if there are differences in body temperature responses between obese and non-obese females when controlling metabolic heat production during exercise.Methods Twenty healthy females, ten obese (43.5 ± 4.5 % fat, 77.5 ± 14.4 kg) and ten non-obese (26.3 ± 6.2 % fat, 53.7 ± 6.4 kg), cycled for 60 min in a warm environment (40 °C, 30 % humidity) at a work load that elicited either 300 W of metabolic heat production (fixed heat production; FHP) or 175 W/m(2) of skin surface area (body surface area, BSA). Before and during exercise, rectal temperature (T re), mean skin temperature (T sk), oxygen uptake (VO2), and sweat rate were measured. Fluid was provided throughout exercise so that euhydration was maintained throughout.Results In the FHP trial, when absolute heat production was similar between obese (287 ± 15 W) and non-obese (295 ± 18 W) individuals (P > 0.05), there were no differences at the end of exercise in T re (38.26 ± 0.40 vs. 38.30 ± 0.30 °C, respectively) or T sk (36.94 ± 1.65 vs. 35.85 ± 0.67 °C) (all P > 0.05). In the BSA trials, relative heat production was similar between obese and non-obese individuals (168 ± 8 vs. 176 ± 5 W/m(2), respectively; P > 0.05). Similar to the FHP trials, there were no differences between obese and non-obese T re (38.45 ± 0.33 vs. 38.08 ± 0.29 °C, respectively) or T sk (36.82 ± 1.04 vs. 36.11 ± 0.64 °C) at the end of exercise (all P > 0.05).Conclusions When obese and non-obese females exercised at a fixed metabolic heat production and euhydration was maintained, there were no differences in body temperature between groups.

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  • Other studies have shown no effect of body fat percentage on heat loss and/or body temperature, which the authors have attributed to high skin blood flow in heat and exercise.

    “However, other studies have shown no effect of body fat percentage on heat loss and/or body temperature, which the authors have attributed to high skin blood flow in heat and exercise [72–74].”

    From Drivers of diversity in human thermal perception – A review for holistic comfort models (2018) · cites this paper as [73]

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Authors
Adams, J. D., Ganio, M. S., Burchfield, J. M., Matthews, A. C., Werner, R. N., Chokbengboun, A. J., Dougherty, E. K., & LaChance, A. A.
Affiliations
University of Arkansas at Fayetteville (US)
Corresponding author
Ganio, Matthew S.
ORCID
Venue
European Journal of Applied Physiology
Publisher
Springer Science and Business Media LLC
Published
2014-09-26
Volume
115
Issue
1
Pages
167-176
ISSN
  • 0020-9376 (ISSN-L)
  • 1439-6319
  • 1439-6327
DOI
10.1007/s00421-014-3002-y
OpenAlex
W2088094421
Cited by
30
References
48
Citations by year
2026: 2 · 2025: 2 · 2024: 2 · 2023: 1 · 2022: 1 · 2021: 3 · 2020: 2 · 2019: 3 · 2018: 2 · 2017: 2 · 2016: 5 · 2015: 5
FWCI
2.66
Type
journal article
Language
en
Open access
closed
Licence
www.springer.com/tdm (tdm)
Locations
  • European Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
obesity, body temperature, exercise in the heat, metabolic heat production, rectal temperature, skin temperature, hydration, sweat rate, oxygen consumption, body surface area, women cyclists, body fat percentage, exercise thermoregulation, heat acclimation, heatstroke
MeSH terms
Adolescent, Adult, Female, Hot Temperature, Humans, Obesity, Water-Electrolyte Balance, Exercise, Case-Control Studies, Thermogenesis

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