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The Energy Expenditure of Boys and Girls 9 to 11 Years of Age (1) Washing and Wiping Dishes, (2) Boys Engaged in Carpentry, and (3) Girls Sewing

Nutrition Laboratory, Teachers College, Columbia University, New York, N. Y. in cooperation with the Bureau of Human Nutrition and Home Economics, U. S. Department of Agriculture, Washington, D. C.

Twenty-four determinations of the energy expenditure for washing and wiping dishes were carried out in a respiration chamber. The subjects were 10 boys and 8 girls, 9 to 11 years of age, 12 determinations being made on the boys and 12 on the girls. The results are reported as the total expenditure, i.e., inclusive of the basal metabolism. The average expenditure by the boys was 2.92 Cal. per kilogram of body weight per hour or 0.75 Cal. per centimeter of height per hour, and by the girls 2.61 Cal. per kilogram per hour or 0.67 Cal. per centimeter per hour. These results per kilogram of body weight are, respectively, 96.0% and 76.4% above the basal energy expenditure.

Fourteen determinations were made of the energy expenditure of 10 boys, 9 to 11 years of age, doing carpentry work in the chamber. The average expenditure was 3.58 Cal. per kilogram per hour or 0.87 Cal. per centimeter per hour. In terms of body weight the increase was 122.4% above the basal energy expenditure.

Thirteen determinations of the energy expenditure of 9 girls, 9 to 11 years of age, while sitting sewing in the respiration chamber were carried out. The average expenditure was 1.85 Cal. per kilogram per hour or 0.47 Cal. per centimeter per hour. In terms of body weight the increase was 26.7% above the basal energy expenditure.

² The authors wish to express their appreciation to the following members of the research staff for assistance in connection with these studies: Dr. Anne Barman Caldwell, Mary Ellis, Edna Sostman, and Frances Godshall.

Manuscript received 16 January 1951.

This article has been cited by other articles:

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