Abstract
The results of long-term research of formation of the circadian rhythm of skin temperature (CRT) in children during puberty are described. For this purpose, the skin temperature (T) of children, adolescents, and young adults of both sexes in the age range of 8–22 years was monitored for 48 h using a Thermochron iButton device. The age-related mesor dynamics, which reflects establishment of body thermoregulation during puberty, follows a wave pattern. The first T maximum is observed in children 10–11 years of age and the second one, in adolescents 14–15 years of age. Note that the overall dynamics in boys and girls are synchronous, but the mesor for girls aged 8 to 17 years is significantly higher. In adults aged 20–22 years, men display a higher mesor value as compared to women. The dynamics of CRT amplitude is stable until the age of 12–13 years with a subsequent decrease in amplitude in boys and an increase in girls at the age of 14–15 years. The subjects of both sexes display a drastic increase in the amplitude at the age of 16–17 years and a considerable decrease by the age of maturity (20–22 years). The CRT amplitude in boys is significantly larger as compared with girls, being similar in adult males and females. Monitoring of the sleep-wake cycle has shown that diurnal thermoregulation changes at certain ages (for boys, 10–11 years and for girls, 10–11 and 16–17 years); the night temperature is higher than the day values.
Published Version
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