Changes of thermoregulation during the menstrual cycle.

概要

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The effects of the human menstrual cycle on thermoregulatory responses were examined on eight healthy women in a climatic chamber controlled at 28°C and 50% r.h. The physiological and psychological responses of each subject were measured in the three stages of her menstrual cycle: luteal phase (L), menstrual phase (M) and follicular phase (F) . Rectal and oral temperatures were higher in L than in M and F (p<0.01) . There was no significant difference in the metabolic rate, but the mean value was slightly higher in L than in the other two phases.Weight loss due to perspiration in L was the lowest of all (p<0.01) . Mean skin temperature was higher in L than in M (p<0.05), but not significantly different between L and F. This is because skin temperature of the trunk regions was higher in L than in F, whereas skin temperature of the peripheral regions was lower in L than in F. As for thermal sensation, most subjects felt cooler in L than in F and M, dispite no change in the environment. These results show that the menstrual cycle affects both thermoregulation and thermal sensation in women.
日本生気象学会の論文