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American Journal of Clinical Nutrition, Vol 61, 466-472, Copyright © 1995 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Resting metabolic rate and work efficiency of rural Beninese women: a 2- y longitudinal study

EA Ategbo, JM van Raaij, FL de Koning and JG Hautvast
Faculty of Agricultural Sciences, Benin National University, Cotonou, Netherlands.

This study was performed on 34 female farmers in northern Benin during 2 consecutive years. Body composition, energy intake, energy expenditure, resting metabolic rate (RMR), and energy cost of cycling on a bicycle were measured in three periods per year. Energy intake showed seasonal fluctuations of approximately 1.7 MJ/d in 1990 and 0.6 MJ/d in 1991. Body weight fluctuated between periods, with the lowest weight in preharvest periods. Observed changes in body weight were 2.6 +/- 2.3 and 0.9 +/- 1.7 kg in 1990 and 1991, respectively. The same pattern was observed in both fat mass and fat-free mass. RMR, energy cost of cycling, and delta work efficiency did not show any seasonal changes. It is concluded that metabolic adaptation, as a response to a seasonal food shortage up to 15% of average daily intake, will not occur.


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I. Tetens, O. Hels, N. I Khan, S. H Thilsted, and N. Hassan
Rice-based diets in rural Bangladesh: how do different age and sex groups adapt to seasonal changes in energy intake?
Am. J. Clinical Nutrition, September 1, 2003; 78(3): 406 - 413.
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