Evaluation of energy intake and autonomic regulatory function in lean young female

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Other Title
  • やせの若年女性におけるエネルギー摂取と自律機能の検討
  • ヤセ ノ ジャクネン ジョセイ ニ オケル エネルギー セッシュ ト ジリツ キノウ ノ ケントウ
  • やせの若年女性におけるエネルギー摂取と自律機能の検討
Published
2004-03
Resource Type
departmental bulletin paper
Publisher
名寄 : 市立名寄短期大学

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Description

In order to clarify the effects of leanness on autonomic regulatory functions,energy intakes,vital signs, and cold pressure reaction were investigated on 9 lean and 18 normal female students. The body weight , BMI,degree of obesity,and body fat rate were lower in the lean group then those in the normal one,however body height and vital signs,such as tympanic temperature and pulse were not different between the groups.Diastplic blood pressure,but not systolic one,was lower in the lean group as compared with normal one. The daily intakes of energy,as well as protein,fat and carbohydrates were the same in both groups. The energy intakes of the students were extremely small in even the normal group as compared to the recommended daily intake for thier age and gender group. The resting metabolism and urinary excretion of vanylmandelic acid,a metabolite of catechoamines,seem to be higher in lean group. The cold-induced elevation of blood pressure was not different between groups,but the down of blood pressure,following after cessation of cold stimulation,was not observed in diastolic one in the lean group. The present results suggest that an enhanced activity of the sympathetic nerves contributes,partly,to cause the physical difference between lean and normal groups,possibly throuh an increase of energy dissipation.It is also supposed that decreases in tolerance for immunological activity occurred in excessively lean subjects because of a general disturbance of the autnomic regulatory systems in the body. It is, therefore,important to correct the false admiration among young females for leanness as beauty, and to encourage them to build truly healthy and beautiful bodies.

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