Validation of Resting Energy Expenditure Equations in Older Adults with Obesity

作者：Rachel Griffith, Ryan Shean, Curtis L. Petersen, Rima Itani Al-Nimr, Tyler Gooding, Meredith N. Roderka, John A. Batsis · 发表于：Journal of Nutrition in Gerontology and Geriatrics · 年份：2022 · DOI：10.1080/21551197.2022.2070320 · 被引用次数：11 · 研究领域：Clinical Nutrition and Gastroenterology、Diet and metabolism studies、Nutrition and Health in Aging

It is unclear which energy expenditure prediction equation should guide weight loss interventions in older adults with obesity. We ascertained the validity of four equations commonly used in practice in a series of weight loss studies of adults aged ≥65 with a body mass index ≥30kg/m2 using indirect calorimetry data. Diagnostic accuracy was defined as <10% discrepancy between predicted and measured resting metabolic rate (RMR). Mean was 73.4 years. RMR using the ReeVue was 1,643 kCal. With 59.0% accuracy, the WHO equation demonstrated the highest accuracy while the Harris-Benedict yielded 53.5% accuracy. The Owens equation demonstrated the least variability (21.5% overprediction, 27.8% underprediction) with 50.7% accuracy. A SECA bioimpedance analyzer noted the second lowest accuracy of 49.6%. Only 43.1% of measurements were within 10% of the gold-standard indirect calorimetry value using the Mifflin equation. All equations demonstrated <60% accuracy suggesting a great need for estimating energy needs.