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Cited by 60Thermoregulation and physiological responsesEffects of Environmental Stressors on LivestockBuilding Energy and Comfort Optimization

The effect of postural changes on body temperatures and heat balance

Tikuisis, Peter, Ducharme, Michel B.·1996·European Journal of Applied Physiology and Occupational Physiology
DOI 10.1007/bf00242275
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Abstract

Early studies have demonstrated that rectal temperature (T(re)) decreases and mean skin temperature (Tsk) increases in subjects changing their posture from standing to supine, and vice versa. Such changes have important implications insofar as thermal stress experiments are conducted and interpreted. However, the extent of these changes between steady-state conditions is not known. In addition, it is not known whether thermal balance is also affected by postural changes. To examine these questions, 11 healthy males were exposed to a thermoneutral air environment (28.2-28.5 degrees C and 40% relative humidity) in various postures at rest. Body temperatures, heat losses, and metabolic rate were measured. Subjects wore shorts only and began in an upright posture (standing or sitting at an inclination of 7.5 degrees) on a customized tilt-table. They were tilted twice, once into a supine position and then back to the original upright position. Each tilt occurred after steady state was satisfied based on the subject's circadian variation of T(re) determined previously in a 4.25 h control supine trial. Times to supine steady state following the first tilt were [mean(SE)] 92.6 (6.4) and 116.6 (5.1) min for the standing and sitting trials, respectively. Times to upright steady state following the second tilt were 107.9 (11.4) and 124.1 (9.0) min. Mean steady-state T(re) and Tsk were 36.87 (0.07) and 34.04 (0.14), 37.47 (0.09) and 33.48 (0.14), and 37.26 (0.05) and 33.49 (0.10) degrees C for supine, standing, and sitting, respectively. Thermal balance was attained in all steady-state conditions, and allowing for a decrease in the weighting factor of T(re) for mean body temperature in the upright postures, it also appears that thermal balance was preserved between changes in posture. These results are consistent with no perceived changes by the subjects in their thermal comfort and skin wetness.

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  • Skin temperature changes with environmental heat and cold, posture, environmental light, anxiety, nutritional status, pain, and stress.

    “Because the skin is rather poikilotherm, its temperature changes with environmental heat and cold. It changes also with posture [61, 78], environmental light [12, 80], anxiety [51], nutritional status [48], pain [36, 42, 54], and stress [72].”

    From Sleep, vigilance, and thermosensitivity (2012) · cites this paper as [78]

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Authors
Tikuisis, P., & Ducharme, M. B.
ORCID
Venue
European Journal of Applied Physiology and Occupational Physiology
Publisher
Springer Science and Business Media LLC
Published
1996-03
Volume
72-72
Issue
5-6
Pages
451-459
ISSN
  • 0020-9376 (ISSN-L)
  • 0301-5548
  • 1439-6327
DOI
10.1007/bf00242275
OpenAlex
W2026997210
Cited by
60
References
23
Citations by year
2026: 3 · 2025: 4 · 2024: 1 · 2022: 4 · 2021: 2 · 2020: 2 · 2019: 2 · 2018: 4 · 2016: 5 · 2015: 3 · 2014: 1 · 2013: 2 · 2012: 4
FWCI
0.45
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
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Effects of Environmental Stressors on Livestock
  • Physical Sciences › Engineering › Building and Construction › Building Energy and Comfort Optimization
Keywords
postural changes, body temperature, heat balance, rectal temperature, skin temperature, supine position, upright posture, tilt table, thermoneutrality, metabolic rate, heat loss, thermal comfort
MeSH terms
Adult, Body Temperature, Body Temperature Regulation, Humans, Male, Posture, Thorax

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