Variation of the basal metabolic rate and dietary energy intake of Colombian women during 1 y

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Abstract
Anthropometry, basal and resting metabolic rates (BMR and RMR), and dietary energy intake were measured on five occasions ≈3 mo apart for 1 y in 21 nonpregnant, nonlactating women 20–42 y of age living under deprived economic conditions in Cali, Colombia. There was a significant increase in body weight (1–1.5 kg) because of increased body fat during the last two rounds of measurement. BMR was elevated in the first round but fell to stable values that did not vary significantly from 3 to 12 mo. The intraindividual CV of BMR was 8.3% whereas the intraindividual CV of dietary energy intake was 17%. Measured BMR was closely related to the BMR estimates provided by the empirical equations of Schofield, but significantly higher than estimates from the equations of Henry and Rees. RMR-BMR ratios were very close to those published by FAO/WHO/ UNU. Autocorrelation analysis of BMR showed weak ability to predict subsequent variation of BMR over time and is consistent with random variation of the data.

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