Thermoregulatory Responses with Size-matched Simulated Torso or Limb Skin Grafts.
Arm
/ physiopathology
Body Temperature Regulation
Burns
/ physiopathology
Exercise
/ physiology
Female
Heart Rate
/ physiology
Humans
Leg
/ physiopathology
Male
Perception
/ physiology
Physical Exertion
/ physiology
Postoperative Complications
/ physiopathology
Skin Transplantation
/ adverse effects
Thermosensing
/ physiology
Torso
/ physiopathology
Journal
Medicine and science in sports and exercise
ISSN: 1530-0315
Titre abrégé: Med Sci Sports Exerc
Pays: United States
ID NLM: 8005433
Informations de publication
Date de publication:
01 10 2021
01 10 2021
Historique:
pubmed:
4
5
2021
medline:
12
11
2021
entrez:
3
5
2021
Statut:
ppublish
Résumé
This study aimed to test the hypothesis that a simulated burn injury on the torso will be no more or less detrimental to core temperature control than on the limbs during uncompensable exercise-heat stress. Nine nonburned individuals (7 men, 2 women) completed the protocol. On separate occasions, burn injuries of identical surface area (0.45 ± 0.08 m2 or 24.4% ± 4.4% of total body surface area) were simulated on the torso or the arms/legs using an absorbent, vapor-impermeable material that impedes sweat evaporation in those regions. Participants performed 60 min of treadmill walking at 5.3 km·h-1 and a 4.1% ± 0.8% grade, targeting 6 W·kg-1 of metabolic heat production in 40.1°C ± 0.2°C and 19.6% ± 0.6% relative humidity conditions. Rectal temperature, heart rate, and perceptual responses were measured. Rectal temperature increased to a similar extent with simulated injuries on the torso and limbs (condition-by-time interaction, P = 0.86), with a final rectal temperature 0.9°C ± 0.3°C above baseline in both conditions. No differences in heart rate, perceived exertion, or thermal sensation were observed between conditions (condition-by-time interactions, P ≥ 0.50). During uncompensable exercise-heat stress, sized-matched simulated burn injuries on the torso or limbs evoke comparable core temperature, heart rate, and perceptual responses, suggesting that the risk of exertional heat illness in such environmental conditions is independent of injury location.
Identifiants
pubmed: 33935232
doi: 10.1249/MSS.0000000000002694
pii: 00005768-202110000-00018
pmc: PMC8440327
mid: NIHMS1697410
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
2190-2195Subventions
Organisme : NIGMS NIH HHS
ID : R01 GM068865
Pays : United States
Informations de copyright
Copyright © 2021 by the American College of Sports Medicine.
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