Article (Scientific journals)
Oral temperature as an index of core temperature during heat transients
Mairiaux, Philippe; Sagot, J. C.; Candas, V.
1983In European Journal of Applied Physiology and Occupational Physiology, 50 (3), p. 331-41
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Keywords :
Adult; Body Temperature; Body Temperature Regulation; Esophagus; Exercise Test; Hot Temperature; Humans; Male; Mouth/blood supply; Mouth Floor; Physical Exertion; Rectum; Regional Blood Flow; Regression Analysis; Temperature; Tongue/blood supply
Abstract :
[en] Rectal (Tre), oral (Tor) and oesophageal (Tes) temperatures were measured in five exercising subjects exposed for two hours to five conditions (1) a steady condition (WR) involving a constant work load (50 W) at a constant air temperature (Ta = 36.5 degrees C); (2) air temperature variations (delta Ta) between 28 degrees C and 45 degrees C and (3) between 23 degrees C and 50 degrees C at constant work load (50 W); (4) and (5) to work load variations (delta W) between 25 W and 75 W at a constant Ta (= 36.5 degrees C). Oral temperature recordings were taken sublingually and were either continuous or discontinuous. When discontinuous, the time needed for Tor to stabilize after the mouth opening was taken into account. The respective reliability of Tor and Tre as estimates of Tes were compared in each condition. Results showed that the resting (Tor - Tes) difference (+ 0.12 degrees C) was barely modified after two hours of exposure, whereas Tre overestimated Tes by 0.2 degrees C to 0.4 degrees C depending on the condition. The Tor variations were highly correlated with Tes variations under steady condition and under air temperature variations. In these conditions, Tor represented the best estimate of Tes. Under work-load variations, Tor was less closely related to Tes than was Tre. It is suggested that the relative inertia of Tor to step changes in exercise intensity could be ascribed to work induced variations in mouth blood flow.
Disciplines :
Public health, health care sciences & services
Author, co-author :
Mairiaux, Philippe  ;  Université de Liège - ULiège > Département des sciences de la santé publique > Santé au travail et éducation pour la santé (STES)
Sagot, J. C.
Candas, V.
Language :
English
Title :
Oral temperature as an index of core temperature during heat transients
Publication date :
1983
Journal title :
European Journal of Applied Physiology and Occupational Physiology
ISSN :
0301-5548
Publisher :
Springer Verlag, Berlin, Germany
Volume :
50
Issue :
3
Pages :
331-41
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 29 November 2010

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