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American Journal of Clinical Nutrition, Vol 24, 1482-1488, Copyright © 1971 by The American Society for Clinical Nutrition, Inc.

Energy expenditure and heart rate of obese high school girls

R. B. Bradfield Ph.D.1, J. Paulos M.S.1, and L. Grossman M.A.1

1 From the Department of Nutritional Sciences, University of California at Berkeley, and the Department of Home Economics, San Fernando Valley State College, Northridge, California

The energy expenditure and physical activity of nonobese and obese high school girls participating in the same school program were assessed by three different methods over different periods of time. The continuous monitoring of heart rate and use of individual regressions of heart rate on oxygen consumption to estimate energy expenditure showed no significant differences between nonobese and obese girls during physical education classes, during school classroom activities, and after school work or play. Three-day activity assessments showed that both groups were very inactive, 70% of the time was spent either in sleep or very light activities. Assessment of relative participation in physical education class did not reveal different trends between obese and nonobese subjects.




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Copyright © 1971 by The American Society for Nutrition