Shivering and non-shivering thermogenesis during summit metabolism in young lambs
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چکیده
منابع مشابه
Fueling shivering thermogenesis during passive hypothermic recovery.
In humans, the relative importance of oxidative fuels for sustaining shivering during passive hypothermic recovery or rewarming is still unclear. The main goals of this study were 1) to quantify the respective contributions of lipids and carbohydrates (CHO) during passive rewarming and 2) to determine the effects of precooling exercise on the pattern of fuel utilization. With indirect calorimet...
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Shivering is the only universal facultative thermogenic mechanism in endothermic vertebrates. Skeletal muscle constitutes a large proportion of body mass and a high scope of metabolic rate, and thus heat production, between resting level and active contraction. Its contractile activity is under rapid and accurate neural control. Together with the inherently low metabolic efficiency of muscle, t...
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The pigeon's main source of regulated heat production, shivering, is especially likely to be used for thermoregulation during the dark phase of the day when there is little heat from locomotor activity. However, food stored in the pigeon's crop is digested during the night, and digestion-related thermogenesis (DRT) will provide heat that should decrease the need for shivering to maintain body t...
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1. Hypothermia to a temperature of 30 degrees C was induced in both shivering and non-shivering groups of dogs. 2. There was a sustained increase in oxygen consumption in the dogs allowed to shiver and this was up to 300% greater than the oxygen consumption in the relaxed dogs. 3. The increased tissue requirement for oxygen was met both by increased cardiac output and increased oxygen extractio...
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DAVIS, T. R. A., D. R. JOHNSTON, F. C. BELL AND B. J. CREMER. Regulation of shivering and nonshiuering heat production during acclimation of rats. Am. J. Physiol. 198(s) : 471-475. 1g6o.-When cold acclimating rats are treated with diathermy, curare and a combination of both, two main fractions of the increase in cold-induced oxygen consumption can be delineated. First, a fraction which diatherm...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1968
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1968.sp008605