Abstract
As a series of the studies on the energy metabolism of the household activities, R. M. R. for the child's care was estimated on three mothers in Tokyo.
1. Of the R. M. R for the child's care the value of “sitting with the baby on the knee” was the lowest, 0.13, and of “up-and-down the stairs with the baby on the back” was of the highest value, 5.29.
2. The average R. M. R. of respective mother was 1.13, 1.35, and 1.68. The last subject has two children.
3. The activities estimated were of 14 items in all, the average R. M. R. being 1.4.
4. The result of the time study revealed that time spent on the child's care was 5 hours and 49 minutes on an average for the urban mothers, and for the suburban mothers the time was as half as the urban mothers.
