Metabolic equivalent of task and the accuracy of resting metabolic rate prediction equations in inactive, healthy postmenopausal women with overweight and obesity La précision des équivalents métaboliques et des formules d'estimation du taux métabolique de base au repos chez les femmes en surpoids et obèses post-ménopausées

GÜZEL Y., TURNAGÖL H. H., ATAKAN M. M., BULUT S., HAZIR T., KOŞAR Ş. N.

Science and Sports, cilt.37, sa.5-6, ss.421-430, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 5-6
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.scispo.2021.09.003
  • Dergi Adı: Science and Sports
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, BIOSIS, CAB Abstracts, EMBASE, SportDiscus
  • Sayfa Sayıları: ss.421-430
  • Anahtar Kelimeler: Resting metabolic rate, Obesity, Metabolic equivalent, Postmenopausal women
  • Hacettepe Üniversitesi Adresli: Evet

Özet

© 2022 Elsevier Masson SASObjective: The aim of this study is to compare the traditionally accepted oxygen consumption value (3.5 mL.kg−1.min−1) for 1 metabolic equivalent of task with measured resting oxygen consumption in postmenopausal women with overweight and obesity. The second purpose is to determine the accuracy of selected resting metabolic rate prediction equations. Materials and methods: This study includes the baseline resting metabolic rate data collected for a more comprehensive exercise intervention study in postmenopausal women with overweight and obesity. Twenty-eight postmenopausal women with overweight and obesity (age: 55.5 ± 4.0 years, body mass index: 33.0 ± 4.2 kg.m−2) participated in this study. Resting metabolic rate was measured by indirect calorimetry and predicted by selected six equations. One-Sample t-test, Paired-Sample t-test, Intraclass Correlation Coefficient, Information Based Measure of Disagreement and Bland-Altman plots were used for data analysis. Results: Resting oxygen consumption (1.96 mL.kg−1.min−1) was 44% lower than the traditionally accepted oxygen consumption value for 1 metabolic equivalent of task (P < 0.05). Measured resting metabolic rate was 1113 ± 255 kcal.day−1. All prediction equations, MifflinWeight (1373 ± 106 kcal.day−1), MifflinFatFreeMass (1281 ± 83 kcal.day−1), Harris-Benedict (1481 ± 95 kcal.day−1), World Health Organization (1540 ± 90 kcal.day−1), Bernstein (1225 ± 73 kcal.day−1) and OwenFatFreeMass (1202 ± 83 kcal.day−1) significantly overestimated the resting metabolic rate (P < 0.05). Conclusion: Resting oxygen consumption in postmenopausal women with overweight and obesity is lower than the traditionally accepted value of 1 metabolic equivalent of task. Therefore, the use of standard metabolic equivalent of task may overestimate the resting metabolic rate and lead to misclassification of physical activity intensities in this population. The accuracy of the prediction equations is very low, and they overestimate resting metabolic rate in postmenopausal women with overweight and obesity, which may interfere with the weight management programmes. Whenever possible indirect calorimetry should be used to determine resting metabolic rate in this population.