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Persistence of impaired heat tolerance from artificially induced miliaria rubra.
Am J Physiol. 1980 Sep; 239(3):R226-32.AJ

Abstract

Ten volunteers were heat acclimatized to 48.9 degrees C (Ta), 20% rh for 7 days to complete a 100-min walk on a level treadmill (1.56 m x s-1). Subjects were then divided into experimental (n = 6) and control (n = 4) groups. Miliaria rubra (heat rash) was then induced on the experimental subjects by wrapping them for 3 days in polyethylene plastic. All six developed marked miliaria with involvement of 40-70% of the total body surface area. All subjects were reexposed to walking in the heat on the 7th day after unwrapping, by which time rash was clinically indetectable, and again 14 days after unwrapping. On the first test (day 7) only one of the rashed group, and on the second test (day 14) only two could complete the 100-min walk; the control group finished without difficulty on both days. Body heat storage for the rash group was 2.5 times that of the control group on day 7 and 1.5 as great on day 14; measurements of mean body temperature (Tb) on the rash group indicated a much greater heat stress when compared to their own prerash-acclimatized values or those of the control group. These data demonstrate the potential of "healed" miliaria in the etiology of clinical heat illness.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

7435593

Citation

Pandolf, K B., et al. "Persistence of Impaired Heat Tolerance From Artificially Induced Miliaria Rubra." The American Journal of Physiology, vol. 239, no. 3, 1980, pp. R226-32.
Pandolf KB, Griffin TB, Munro EH, et al. Persistence of impaired heat tolerance from artificially induced miliaria rubra. Am J Physiol. 1980;239(3):R226-32.
Pandolf, K. B., Griffin, T. B., Munro, E. H., & Goldman, R. F. (1980). Persistence of impaired heat tolerance from artificially induced miliaria rubra. The American Journal of Physiology, 239(3), R226-32.
Pandolf KB, et al. Persistence of Impaired Heat Tolerance From Artificially Induced Miliaria Rubra. Am J Physiol. 1980;239(3):R226-32. PubMed PMID: 7435593.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Persistence of impaired heat tolerance from artificially induced miliaria rubra. AU - Pandolf,K B, AU - Griffin,T B, AU - Munro,E H, AU - Goldman,R F, PY - 1980/9/1/pubmed PY - 1980/9/1/medline PY - 1980/9/1/entrez SP - R226 EP - 32 JF - The American journal of physiology JO - Am. J. Physiol. VL - 239 IS - 3 N2 - Ten volunteers were heat acclimatized to 48.9 degrees C (Ta), 20% rh for 7 days to complete a 100-min walk on a level treadmill (1.56 m x s-1). Subjects were then divided into experimental (n = 6) and control (n = 4) groups. Miliaria rubra (heat rash) was then induced on the experimental subjects by wrapping them for 3 days in polyethylene plastic. All six developed marked miliaria with involvement of 40-70% of the total body surface area. All subjects were reexposed to walking in the heat on the 7th day after unwrapping, by which time rash was clinically indetectable, and again 14 days after unwrapping. On the first test (day 7) only one of the rashed group, and on the second test (day 14) only two could complete the 100-min walk; the control group finished without difficulty on both days. Body heat storage for the rash group was 2.5 times that of the control group on day 7 and 1.5 as great on day 14; measurements of mean body temperature (Tb) on the rash group indicated a much greater heat stress when compared to their own prerash-acclimatized values or those of the control group. These data demonstrate the potential of "healed" miliaria in the etiology of clinical heat illness. SN - 0002-9513 UR - https://www.unboundmedicine.com/medline/citation/7435593/Persistence_of_impaired_heat_tolerance_from_artificially_induced_miliaria_rubra_ L2 - http://www.physiology.org/doi/full/10.1152/ajpregu.1980.239.3.R226?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -