King Grub
2008-05-13, 13:41
The Institute of Medicine proposed that 15% of energy expenditure (EE) as excess post-exercise oxygen consumption should be added to additional physical activity energy expenditure (DeltaPAEE) to estimate total EE. However, the magnitude of elevated post-physical activity energy expenditure (EPEE) under normal daily living conditions has not been examined.
We examined the effects of EPEE on 24-h EE by modeling standard living conditions in a metabolic chamber.
Eleven Japanese men completed three 24-h metabolic chamber measurements: a control day (C-day), a day with high-frequency moderate-intensity physical activity (M-day), and a day with high-frequency vigorous-intensity physical activity (V-day).
Mean (+/- SD) 24-h EE for the C-day, the M-day, and the V-day was 2228 +/- 143 kcal, 2816 +/- 197 kcal, and 2813 +/- 163 kcal, respectively. No significant difference was observed in 24-h EE between an M-day and a V-day. Mean EPEEs on the M-day and the V-day did not significantly contribute to increasing 24-h EE. Relative EPEEs to DeltaPAEEs were 6.2 +/- 13.9% (M-day) and 5.1 +/- 9.2% (V-day). However, EPEE/24-h EE was negatively correlated with maximal oxygen uptake on the V-day (r = -0.68, P = 0.02), although no significant correlation between these variables was observed on the M-day (r = -0.41, P = 0.21).
These results suggest that EPEE has a small effect on 24-h EE in the course of normal daily activities, findings that do not support the proposition by the Institute of Medicine for estimating TEE.
Am J Clin Nutr. 2008 May;87(5):1268-76. Twenty-four-hour analysis of elevated energy expenditure after physical activity in a metabolic chamber: models of daily total energy expenditure.
http://www.ajcn.org/cgi/content/full/87/5/1268
We examined the effects of EPEE on 24-h EE by modeling standard living conditions in a metabolic chamber.
Eleven Japanese men completed three 24-h metabolic chamber measurements: a control day (C-day), a day with high-frequency moderate-intensity physical activity (M-day), and a day with high-frequency vigorous-intensity physical activity (V-day).
Mean (+/- SD) 24-h EE for the C-day, the M-day, and the V-day was 2228 +/- 143 kcal, 2816 +/- 197 kcal, and 2813 +/- 163 kcal, respectively. No significant difference was observed in 24-h EE between an M-day and a V-day. Mean EPEEs on the M-day and the V-day did not significantly contribute to increasing 24-h EE. Relative EPEEs to DeltaPAEEs were 6.2 +/- 13.9% (M-day) and 5.1 +/- 9.2% (V-day). However, EPEE/24-h EE was negatively correlated with maximal oxygen uptake on the V-day (r = -0.68, P = 0.02), although no significant correlation between these variables was observed on the M-day (r = -0.41, P = 0.21).
These results suggest that EPEE has a small effect on 24-h EE in the course of normal daily activities, findings that do not support the proposition by the Institute of Medicine for estimating TEE.
Am J Clin Nutr. 2008 May;87(5):1268-76. Twenty-four-hour analysis of elevated energy expenditure after physical activity in a metabolic chamber: models of daily total energy expenditure.
http://www.ajcn.org/cgi/content/full/87/5/1268