Factorial estimation of daily energy expenditure using a simplified method was improved by adjustment for excess post-exercise oxygen consumption and thermic effect of food

Abstract

This study validated a simplified factorial method for measuring energy expenditure (EE) against EE measured by doubly labelled water (DEE), and investigated whether adjustment for excess post-exercise oxygen consumption (EPOC) and thermic effect of food (TEF) as described by Institute of Medicine (2002) improved the factorial measure. Seventeen normal weight subjects (10 females, seven males) were recruited from among university staff and students. Factorial EE was measured using a 16-activitycategory method, published energy costs of activities and measured basal metabolic rate, before (FEE) and after (FEE adj ) adjustment for EPOC and TEF, and by DEE. FEE underestimated daily EE by 14.6% relative to DEE (P ¼ 0.000), but this underestimate was improved to 5.1% (P ¼ 0.071) when FEE was adjusted for EPOC and TEF. Individual differences between DEE and FEE adj ranged from À20.2 to 17.6%, with 88% of subjects showing differences of less than 712%.

Scientific Opinion on Dietary Reference Values for energy

“…The range of predicted REE obtained with the equations of Harris and Benedict (1919), Schofield et al (1985), Mifflin et al (1990), Müller et al (2004) and Henry (2005) is obvious from the respective lowest and highest median values calculated with these equations ( (1985), as well as SACN (2011), identified the lower limit of PAL to be 1.27, which is consistent with studies performed in a calorimeter on non-ambulatory chair-bound and nonexercising subjects (where PAL values of 1.17-1.27 were observed) (Black, 1996). The lower limit of energy expenditure in subjects performing only the minimal activities associated with daily living is between 1.35 and 1.4 (Alfonzo- Gonzalez et al, 2004;Goran et al, 1994b;SACN, 2011;Warwick, 2006). Minimal activities of daily living are usually confined to activities like eating, personal hygiene, dressing, and walking short distances such as from a bed to a chair, and to different locations in a room and corridor outside the room.…”