Τίτλος:
Meal-induced thermogenesis and macronutrient oxidation in lean and obese
women after consumption of carbohydrate-rich and fat-rich meals
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Objective: To examine differences in meal-induced thermogenesis and
macronutrient oxidation between lean and obese women after consumption
of two different isocaloric meals, one rich in carbohydrate (CHO) and
one rich in fat.
Methods: A total of 19 lean and 22 obese women were studied on two
occasions, 1 wk apart. In one visit they consumed a CHO-rich meal and in
the other visit a fat-rich meal. The two meals were isocaloric and were
given in random order. Resting energy expenditure and macronutrient
oxidation rates were measured and calculated in the fasting state and
every hour for 3 h after meal consumption.
Results: Meal-induced thermogenesis was not different between lean and
obese subjects after the CHO-rich (P = 0.89) or fat-rich (P = 0.32)
meal, but it was significantly higher after the CHO-rich compared with
the fat-rich meal in the lean and the obese individuals (P < 0.05).
Protein oxidation rate increased slightly but significantly after the
test meals in both groups (P < 0.01). Fat oxidation rate decreased after
consumption of the CHO-rich meal (P < 0.001), whereas it increased after
consumption of the fat-rich meal in both groups (P < 0.01). CHO
oxidation rate increased in both groups after consumption of the
CHO-rich meal (P < 0.001). Oxidation rates of protein, fat, and CHO
during the experiment were not significantly different between lean and
obese participants.
Conclusion: Meal-induced thermogenesis and macronutrient oxidation rates
were not significantly different between lean and obese women after
consumption of a CHO-rich or a fat-rich meal. (C) 2011 Elsevier Inc. All
rights reserved.
Συγγραφείς:
Tentolouris, Nicholas
Alexiadou, Kleopatra
Kokkinos, Alexander
and Koukou, Eustathia
Perrea, Despoina
Kyriaki, Despoina and
Katsilambros, Nicholas
Περιοδικό:
Frontiers in Nutrition
Εκδότης:
EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC
Λέξεις-κλειδιά:
Obesity; Diet-induced thermogenesis; Protein oxidation; Fat oxidation;
Glucose oxidation
DOI:
10.1016/j.nut.2010.02.007
