Khankeldiev Sh. Kh. Regional features of the physical status of youth students fergana 2022 Reviewer

1.3. BODY TEMPERATURE
When in biology they talk about maintaining a constant body temperature, they do not mean the temperature of the skin, which is highly dependent on environmental conditions, but the temperature of the core of the body.
Temperature fluctuations in different parts of the core of the body occur by about the same amount. Therefore, the real temperature is usually considered as a representative indicator for assessing the deep changes in the temperature of the core of the body.
To measure the temperature of the core of the body at rest (except for the assessment of rectal temperature and temperature in the auricle), measurement in the oral cavity is quite often used. However, with physical exercises, this method does not give sufficiently accurate results.
With regard to skin temperature, in real conditions, the temperature measured on different parts of the body is also different. Therefore, to accurately measure skin temperature, it is measured in several parts and then its weighted average value is determined, taking into account the area occupied by certain parts of the body.
Usually, the following coefficients are used for this: head - 0.7; hands - 0.14; brushes - 0.5; feet - 0.7; legs - 0.14; hips - 0.19; shins - 0.13; torso - 0.35; (total - 1.00).
With an increase in ambient temperature or physical work, the temperature of the core may begin to rise.
As the results of numerous studies have shown, there is a linear relationship between the core temperature of the body and the power of the work performed. This linear relationship is maintained up to approximately 75% of the maximum oxygen consumption, and is relatively independent of the ambient temperature. At higher
the intensities of the work performed; the indicated relationship becomes curvilinear.
If we express the power of the work performed in absolute units (in W, J, kgm / min, etc.), there are very large differences in heat transfer rates and heat accumulation between trained and untrained athletes. However, if the intensity of work is dosed in the same relative values ​​for all (in % of the maximum oxygen consumption), then the differences by the subjects are smoothed out and become invisible.