Die Regulation der Körpertemperatur bei Muskelarbeit<sup>1</sup>

Nielsen, Marius

doi:10.1111/j.1748-1716.1938.tb01246.x

Cited by 309 publications

(109 citation statements)

References 16 publications

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“…Arterial oxygen tension has been dismissed as a regulatory factor because changes in arterial oxygen during exercise are slight, and change in arterial oxygen tension over a considerable range yields little respiratory response at rest (20). A rise in body temperature during exercise may stim-ulate respiration, but this is slow to develop and probably would not be very effective in less than 10 minutes (51). Because it has often seemed difficult to account for the magnitude of ventilation during exercise, it has been recurrently postulated that an unidentified substance which acts as a respiratory stimulant is produced by working muscles.…”

Section: Discussionmentioning

confidence: 99%

Respiratory Regulation During Exercise in Unconditioned Subjects 1

Hickam¹,

Pryor²,

Page³

et al. 1951

J. Clin. Invest.

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Section: Discussionmentioning

confidence: 99%

Respiratory Regulation During Exercise in Unconditioned Subjects 1

Hickam¹,

Pryor²,

Page³

et al. 1951

J. Clin. Invest.

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“…5 and 7). These facts are well known as thermoregulation responses during exercise 1,18,19) . Our prediction computer program for whole body temperatures was able to simulate these important aspects of thermoregulation response during exercise.…”

Section: Resultsmentioning

confidence: 99%

“…It was pointed out that the calculated results of rectal temperature together with measured results are proportional to the total metabolic rate under the present thermal conditions. Our prediction computer program for whole body temperatures was able to simulate one of the integral aspects of thermoregulation response during exercise 1,18,19) . Figure 5 shows the relationship between mean skin temperature and total metabolic rate.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 5 shows the relationship between mean skin temperature and total metabolic rate. It was shown that both calculated and measured mean skin temperatures are independent of the total metabolic rate under the combinations of the three kinds of exercise and the three types of thermal environmental conditions, which is another important aspect of thermoregulation response during exercise 1,18,19) . Figure 6 shows the relationship between rectal temperature and air temperature.…”

Section: Resultsmentioning

confidence: 99%

“…The subroutine part of the calculation of thermoregulatory response is based on a mathematical modeling shown in Table 4. The precise values of the parameters in the mathematical model of thermoregulatory response were shown in our previous reports, which were fitted to the average Japanese male subject 12,18) . We adopted a new numerical solution method consisting of a linear combination of modified Bessel functions 9) .…”

Section: Mathematical Modelmentioning

confidence: 99%

See 2 more Smart Citations

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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Regulation of Body Temperature During Sleep

Day¹

1941

Arch Pediatr Adolesc Med

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In a previous paper 1 it was shown that during an afternoon nap children exhibit a fall in rectal temperature which takes place usually in association with an initial rise and subsequent decline in the cutaneous temperature and the rate of evaporation of water from the body. At the time a way was being sought to eliminate error in measuring the basal rate of insensible perspiration over short periods. It was, however, pointed out that the oscillations in cutaneous temperature and in evaporation during sleep appear to result from a thermoregulatory process which operates in association with the lowering of the temperature of the body. The present paper will present new data and offer an amplified discussion of the experiments in so far as they bear on the regulation of body temperature. METHODSThe same technic was used as previously. Data are presented from 96 experiments on 9 normal children from 5 months to 4 years of age. During the course of an afternoon nap simultaneous measurements were made of the insensible loss of weight, the temperature of the skin at selected points and the rectal temperature. The environmental conditions varied greatly from day to day, but during any one experimental period the relative humidity fluctuated 2 to 5 points, and the room temperature, 0.5 to 1 degree C (0.9 to 1.8 degree F.).Each child received breakfast in his own home. He was brought to the clinic in the morning, two or three hours before the beginning of the observations, and was allowed to play in a room a few degrees cooler than the experimental room. He was given a glass of milk at 11:30 a. m. At some time between 1 and 3 p. m., when he appeared sleepy, he was brought to the experimental room, was unclothed and was placed on the pan of the balance. Observations on the rectal and the cutaneous temperature were begun at once. Weighings were begun as soon as the quietness induced by sleep permitted, which was from fifteen minutes to an hour or more after the child was placed on the balance. Observations were continued until the experiment was terminated either by the child's awakening or by his urinating.Cutaneous temperature was measured by a radiometer accurate to 0.2 degree C.

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Die Regulation der Körpertemperatur bei Muskelarbeit¹

Cited by 309 publications

References 16 publications

Respiratory Regulation During Exercise in Unconditioned Subjects 1

Respiratory Regulation During Exercise in Unconditioned Subjects 1

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

Regulation of Body Temperature During Sleep

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Die Regulation der Körpertemperatur bei Muskelarbeit1

Cited by 309 publications

References 16 publications

Respiratory Regulation During Exercise in Unconditioned Subjects 1

Respiratory Regulation During Exercise in Unconditioned Subjects 1

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

Regulation of Body Temperature During Sleep

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Product

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Die Regulation der Körpertemperatur bei Muskelarbeit¹