Six healthy college girls were selected as subjects, each two of them belonged respectively to obese, ordinary, and lean type, of each type one being tall and the other short in height. Besides ordinary biometrical measurements, center of body gravity, body density, basal metabolism, relative metabolic rate (RMR) of walking and Step Test, and some components of blood and urine were measured. The greatest difference between the obese and lean typed girls was found in skinfold, the former being several times greater, and the next remarkable differences were seen in circumferences especially of thigh, abdomen and upper arm. The basal metabolism per kg, body weight was markedly lower nearly by 40% in the obese than in the lean, whereas expressing per unit of body surface or of fat-free mass there was little difference between the two types. RMR in speedy walking showed a distinctly higher value in the obese than in the lean, though a little difference was observed in low speed walking. RMR in Step Test of the obese girls was higher as much as 50% than of the lean girls. Though no difference was seen in specific gravity of whole blood, serum cholesterol concentration was much higher in the obese and 17-ketosteroid excretion per day per kg. was also farely more in the obese than in the lean girls.
The dietary intake of the firemen was investigated at the four fire-brigade stations in Tokyo in March, 1964. The average energy intake was about 2, 500 Cal., and protein intake was 81g. per head per day, which were over the all-Japan average. Calcium and vitamins, however, were less intaken than the Standard Dietary Allowances, and their diet was not always in good balance. Comparing the intakes of the four brigade stations with each other, there were some local differences, some being high in energy and others high in protein. When they were grouped according to their dwelling, those from home were in better dietary condition than those living in the dormitory, and accordingly the younger firemen's intake were inferior to the elder's. There was no distinct difference in their nutrient intake between the duty day and off-duty day though their activity in the duty day must have been much heavier than in off-duty day. There was no paralleled correlation between the energy intake and expenditure (which was reported previously by Suzuki, et al), but presuming from these data the firemen's average daily calorie consumption, including those of duty day and off-duty day might be 2, 500 Cal. or about, and this value well coincide with the average value of their intake. From the above results it is clear that the improvement of the firemen's nutritional status is an urgent problem, since their daily living schedule is very specific. For this purpose the employment of the system of group-feeding most appropriate to those brigades is desirable.