TY - JOUR
T1 - Influence of nutritional status on basal metabolic rates among rural agriculturalists of Ngilo-Ilo, East Java
AU - Miller, Aaron A.
AU - Indriati, Etty
AU - Leonard, William
N1 - Funding Information:
Thank you to the villagers of Ngilo-Ilo for their participation, and to the Research Ethical Committee at Gadjah Mada University Faculty of Medicine. We also thank Rusyad Adi Suriyanto, Toetik Koesbardiati, Delta Bayu Murti, Almira Sitasari, Ari Tri Astuti, Rieska Afidah, Gempita W. Kinarsih, and Annisa R. Rahmawati who assisted with data collection in the field. This study was supported by the Wenner-Gren Foundation, Northwestern University, and Gadjah Mada University.
Publisher Copyright:
© 2018 Wiley Periodicals, Inc.
PY - 2018/9/1
Y1 - 2018/9/1
N2 - Objectives: Previous research has shown that tropical island populations have reduced basal metabolic rates (BMR) associated with the joint influences of heat stress and undernutrition. This study examines variation in BMR among an indigenous population of Indonesia, and compares these data with those collected from earlier studies in Indonesia. Methods: Anthropometric dimensions and BMR were measured on a sample of 35 Indonesian adults (28 men, 7 women) from the rural village of Ngilo-Ilo, East Java. Results: Mean measured BMRs (±SD) were 1433 ± 344 kcal/d in men and 1256 ±257 kcal/d in women, and were not significantly different from estimates using the FAO/WHO/UNU predictive questions. Underweight individuals (BMIs <18.5 kg/m2) had BMRs that were 7.6% below predicted levels, while those with BMIs ≥18.5 kg/m2 had BMRs that were 8.0% above predicted levels (P <.01). Underweight individuals also had significantly higher respiratory quotients (RQ =.94 vs.89; P <.05), suggesting lower levels of fat oxidation. Compared to data from previous studies (1929–1979), men of the Ngilo-Ilo sample had similar BMIs (19.8 vs. 19.2 kg/m2), but higher BMRs, after adjusting for age and body weight (+2.1% vs. −5.6%; P <.05). Conclusions: Among the agriculturalists of Ngilo-Ilo, measured BMRs were low, but not significantly different from those predicted by the FAO/WHO/UNU equations. Among subjects of this sample and from earlier studies, poorer physical nutritional status was associated with reduced BMRs. These results suggest that chronic energy stress has consistently shaped metabolic function among Indonesian rural populations.
AB - Objectives: Previous research has shown that tropical island populations have reduced basal metabolic rates (BMR) associated with the joint influences of heat stress and undernutrition. This study examines variation in BMR among an indigenous population of Indonesia, and compares these data with those collected from earlier studies in Indonesia. Methods: Anthropometric dimensions and BMR were measured on a sample of 35 Indonesian adults (28 men, 7 women) from the rural village of Ngilo-Ilo, East Java. Results: Mean measured BMRs (±SD) were 1433 ± 344 kcal/d in men and 1256 ±257 kcal/d in women, and were not significantly different from estimates using the FAO/WHO/UNU predictive questions. Underweight individuals (BMIs <18.5 kg/m2) had BMRs that were 7.6% below predicted levels, while those with BMIs ≥18.5 kg/m2 had BMRs that were 8.0% above predicted levels (P <.01). Underweight individuals also had significantly higher respiratory quotients (RQ =.94 vs.89; P <.05), suggesting lower levels of fat oxidation. Compared to data from previous studies (1929–1979), men of the Ngilo-Ilo sample had similar BMIs (19.8 vs. 19.2 kg/m2), but higher BMRs, after adjusting for age and body weight (+2.1% vs. −5.6%; P <.05). Conclusions: Among the agriculturalists of Ngilo-Ilo, measured BMRs were low, but not significantly different from those predicted by the FAO/WHO/UNU equations. Among subjects of this sample and from earlier studies, poorer physical nutritional status was associated with reduced BMRs. These results suggest that chronic energy stress has consistently shaped metabolic function among Indonesian rural populations.
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U2 - 10.1002/ajhb.23169
DO - 10.1002/ajhb.23169
M3 - Article
C2 - 30203432
AN - SCOPUS:85053067288
SN - 1042-0533
VL - 30
JO - American Journal of Human Biology
JF - American Journal of Human Biology
IS - 5
M1 - e23169
ER -
