Thermoregulation in burn patients during exercise.
The purpose of this study was to assess the ability of patients with burns on 30 to 40% and 60% or greater of their BSA to thermoregulate their core temperature during exercise in the heat. Two groups (n = 3 in each) of subjects with healed third-degree burns (34.0 +/- 1.4% and 77.7 +/- 12.4%, respectively) and a group of unburned subjects (n = 2) exercised for 1 hour on a cycle ergometer at 75 Watts in an environmental chamber set at 35 degrees C and 60% relative humidity. Subjects were monitored for rectal and skin temperatures, heart rate, whole body sweat rate, skin blood flow, and active sweat gland density (number per cm ) in unburned, burned, and harvested skin. The results demonstrated that patients with burns on 60% or greater BSA did not show an intolerance to moderate exercise in the heat, as evidenced by only a moderate rise in rectal temperature and heart rate. Furthermore, the responses were similar to those of the unburned subjects.
Austin
K G
KG
Department of Exercise and Nutritional Sciences, San Diego State University, San Diego, California 92182, USA.
Hansbrough
J F
JF
Dore
C
C
Noordenbos
J
J
Buono
M J
MJ
D000328:Adult; D001833:Body Temperature Regulation / Q000502:physiology*; D002056:Burns / Q000503:physiopathology* / Q000534:rehabilitation; D015444:Exercise / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006358:Hot Temperature; D006801:Humans; D008297:Male; D008875:Middle Aged; D012039:Regional Blood Flow / Q000502:physiology; D012129:Respiratory Function Tests; D012867:Skin / Q000098:blood supply / Q000503:physiopathology; D013546:Sweating / Q000502:physiology; D015599:Trauma Severity Indices; D014945:Wound Healing / Q000502:physiology*