Comfort and thermal sensations and associated physiological responses during exercise at various ambient temperatures

Gagge, A. P.; Stolwijk, J. A. J.; Saltin, Bengt

doi:10.1016/0013-9351(69)90037-1

Cited by 273 publications

(140 citation statements)

References 9 publications

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“…These finding is in accordance with previous studies on exercise in similar ambient temperatures [36,37]. Neither the average or lowest mean skin temperature on any of the trawlers indicate an uncomfortable thermal environment according to the relationship between mean skin temperature and thermal comfort and sensation [41,42]. This also corresponds well with the crew-members' subjective evaluations of thermal comfort and perceived thermal sensation.…”

Section: Core and Skin Temperaturesupporting

confidence: 91%

Thermophysiological responses and work strain in fishermen on deep-sea fishing vessels

Høye

Sandsund

Heidelberg

et al. 2016

International Maritime Health

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Section: Core and Skin Temperaturesupporting

confidence: 91%

Thermophysiological responses and work strain in fishermen on deep-sea fishing vessels

Høye

Sandsund

Heidelberg

et al. 2016

International Maritime Health

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“…Volunteers mounted the cycle ergometer located inside a purpose-built environmental chamber with temperature and humidity controlled using automated computer feedback (WatFlow control system; TISS, Hampshire, UK), and were instructed to perform 90 min of continuous cycling exercise at 50 % V : During each testing session HR, rating of perceived exertion (RPE, Borg et al 1985), thermal sensation (TSS, Gagge et al 1969) and T rec were recorded. T mu was measured immediately before and after the cessation of each trial.…”

Section: Experimental Protocolmentioning

confidence: 99%

Extracellular Hsp72 concentration relates to a minimum endogenous criteria during acute exercise-heat exposure

Gibson

Alex

Parfitt

et al. 2014

Cell Stress and Chaperones

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Extracellular heat shock protein 72 (eHsp72) concentration increases during exercise-heat stress when conditions elicit physiological strain. Differences in severity of environmental and exercise stimuli have elicited varied response to stress. The present study aimed to quantify the extent of increased eHsp72 with increased exogenous heat stress, and determine related endogenous markers of strain in an exercise-heat model. Ten males cycled for 90 min at 50 % V : O 2peak in three conditions (TEMP, 20°C/63 % RH; HOT, 30.2°C/51%RH; VHOT, 40.0°C/37%RH). Plasma was analysed for eHsp72 pre, immediately post and 24-h post each trial utilising a commercially available ELISA. Increased eHsp72 concentration was observed post VHOT trial (+172.4 %) (p <0.05), but not TEMP (−1.9 %) or HOT (+25.7 %) conditions. eHsp72 returned to baseline values within 24 h in all conditions. Changes were observed in rectal temperature (T rec ), rate of T rec increase, area under the curve for T rec of 38.5 and 39.0°C, duration T rec ≥38.5 and ≥39.0°C, and change in muscle temperature, between VHOT, and TEMP and HOT, but not between TEMP and HOT. Each condition also elicited significantly increasing physiological strain, described by sweat rate, heart rate, physiological strain index, rating of perceived exertion and thermal sensation.Stepwise multiple regression reported rate of T rec increase and change in T rec to be predictors of increased eHsp72 concentration. Data suggests eHsp72 concentration increases once systemic temperature and sympathetic activity exceeds a minimum endogenous criteria elicited during VHOT conditions and is likely to be modulated by large, rapid changes in core temperature.

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“…By using the improved computer program, we were able to simulate the whole body temperatures of the subjects during exercise described in Gagge et al 1) were simulated. The experimental results of a combination of three kinds of exercise and three types of thermal conditions were presented as shown in Table 5.…”

Section: Resultsmentioning

confidence: 99%

“…The main points of improvement were the assigning procedures of physical characteristics of individuals and local muscle heat production. The improved computer program was used to simulate the whole body temperatures of the subjects during exercise described in Gagge et al 1) . The calculated results agreed with the measured results under the combinations of the three kinds of exercise and the three types of environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Prediction Computer Program for Whole Body Temperatures and its Application under Various Working Level and Thermal Environmental Condition Combinations

Yokoyama

Tao²,

Kakuta

2007

Ind Health

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We introduced a computer program developed for the numerical analysis of thermal conditions of all segments and blood circulatory systems in the human body to precisely evaluate human thermal physiological responses. In this program, a cylindrical model consisting of internal multi-layers is adapted for the segment of the human body. For the multi-layered concentric cylindrical model we adopted a new numerical solution method. By using this computer program the internal tissue temperatures, heat fluxes and blood temperatures of all segments in the human body could be calculated simultaneously. This program also included a subroutine for calculation of thermoregulatory response. This paper describes the improvements made to this computer program for simulating individual physical differences and its application to various working levels. The main points for improvement were the assigning procedures of physical characteristics of individuals and local muscle heat production. The improved computer program was used to simulatethe whole body temperatures of the subjects during exercise described in Gagge, Stolwijk and Saltin (1969) 1) were simulated. The calculated results were agreed with the measured results under the combination of the three kinds of exercise and the three types of environmental condition.

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Comfort and thermal sensations and associated physiological responses during exercise at various ambient temperatures

Cited by 273 publications

References 9 publications

Thermophysiological responses and work strain in fishermen on deep-sea fishing vessels

Thermophysiological responses and work strain in fishermen on deep-sea fishing vessels

Extracellular Hsp72 concentration relates to a minimum endogenous criteria during acute exercise-heat exposure

Prediction Computer Program for Whole Body Temperatures and its Application under Various Working Level and Thermal Environmental Condition Combinations

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