PMID- 18053263
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20121002
LR  - 20211020
IS  - 1550-2783 (Electronic)
IS  - 1550-2783 (Linking)
VI  - 4
DP  - 2007 Dec 5
TI  - Onset of the Thermic Effect of Feeding (TEF): a randomized cross-over trial.
PG  - 24
AB  - BACKGROUND: The purpose of this investigation was to identify the onset of the 
      thermic effect of feeding (TEF) after ingestion of a high carbohydrate (CHO) and 
      a high protein (PRO) 1255 kJ (300 kcal) drink. METHODS: Resting metabolic rate 
      (RMR) and TEF were measured over 30-minute periods via indirect calorimetry using 
      a ventilated hood technique. Eighteen subjects (7 men and 11 women) completed two 
      randomized, double-blind trials. Data were collected in 1-minute measurement 
      intervals. RMR was subtracted from TEF and the time of onset was obtained when 
      two consecutive data points exceeded 5% and 10% of resting metabolic rate. 
      RESULTS: At 5% above RMR the onset of TEF for CHO was 8.4 +/- 6.2 minutes and was 
      not different as compared to PRO, 8.6 +/- 5.2 minutes (p = 0.77). Likewise, no 
      differences were found with a 10% increase above RMR: CHO, 14.1 +/- 7.5 min; PRO, 
      16.7 +/- 6.7 min (p = 0.36). Several subjects did not show a 10% increase within 
      30-min. CONCLUSION: We conclude that the onset of TEF is variable among subjects 
      but is initiated within about 5 to 20-min for most subjects after ingestion of a 
      1255 kJ liquid meal. No differences were found between CHO or PRO liquid meals.
FAU - Scott, Christopher B
AU  - Scott CB
AD  - University of Southern Maine; Exercise, Health and Sports Sciences, Gorham, ME, 
      USA. cscott@usm.maine.edu.
FAU - Fernandes, Jill
AU  - Fernandes J
FAU - Lehman, Maya
AU  - Lehman M
LA  - eng
PT  - Journal Article
DEP - 20071205
PL  - United States
TA  - J Int Soc Sports Nutr
JT  - Journal of the International Society of Sports Nutrition
JID - 101234168
PMC - PMC2221871
EDAT- 2007/12/07 09:00
MHDA- 2007/12/07 09:01
PMCR- 2007/12/05
CRDT- 2007/12/07 09:00
PHST- 2007/10/12 00:00 [received]
PHST- 2007/12/05 00:00 [accepted]
PHST- 2007/12/07 09:00 [pubmed]
PHST- 2007/12/07 09:01 [medline]
PHST- 2007/12/07 09:00 [entrez]
PHST- 2007/12/05 00:00 [pmc-release]
AID - 1550-2783-4-24 [pii]
AID - 10.1186/1550-2783-4-24 [doi]
PST - epublish
SO  - J Int Soc Sports Nutr. 2007 Dec 5;4:24. doi: 10.1186/1550-2783-4-24.