Abstract
Forty-four girls in a certain secondary school in Koto-ku, Tokyo, were studied in terms of their age at menarche, growth, physique and intake of energy and protein.
1) The median of the age at menarche was 12 years 10 months and the range; 11 years-14 years 5 months.
2) The age from menarche correlated significantly positively with the height, weight and Rohrer index, and negatively with the growth of height from 1967 to 1968, Ponderal index, energy intake per body surface and protein intake per body weight.
3) The amount of decrease in a year after menarche was 2.85 Cal/m2/hr in the energy intake per body surface. This value corresponded to the reported decrease in the basal metabolic rate after menarche.
4) The differences of growth rates in weight and body surface and of change in the basal metabolic rate used as the standard for National Allowance of Nutritional Intake from those obtained in this survey, were discussed as probable causes in making a considerably large gap between the Allowance and the actual intake.
