title: Overweight and obese boys reduce food intake in response to a glucose drink but fail to increase intake in response to exercise of short duration.
abstract: The effect of short duration exercise (EXR) on food intake (FI) and energy balance (EB) is not well understood in either normal weight (NW) or overweight (OW) and obese (OB) 9-14 years old children. Our purpose was to describe the effects of activity and a glucose drink on short term FI, appetite, and EB in NW, OW, and OB boys. Each boy received in random order either a noncaloric Sucralose sweetened control or glucose (1.0 g·kg(-1) body weight) drink 5 min after either exercise (EXR) or sedentary (SED) activity. Boys exercised for 15 min at their ventilation threshold (V(T)) in experiment 1 or at 25% above their V(T) in experiment 2. FI was measured at an ad libitum pizza meal 30 min after drink consumption. FI was lower after the glucose drink (p < 0.001) but not affected by activity, even though EXR increased appetite (p < 0.001). OW/OB boys ate more total food than NW boys (p = 0.020). EB over the duration of the experiments was reduced by EXR in OW/OB boys (p = 0.013) but not in NW boys in either experiment (p > 0.05). We conclude that intake regulation in OW/OB boys in response to a glucose drink is similar to NW boys, but it may be less responsive to activity.
authors.affiliation: Department of Nutritional Sciences, University of Toronto, ON M5S 3E2, Canada.
authors.forename: Shlomi
authors.initials: S
authors.lastname: Tamam
authors.forename: Nick
authors.initials: N
authors.lastname: Bellissimo
authors.forename: Barkha P
authors.initials: BP
authors.lastname: Patel
authors.forename: Scott G
authors.initials: SG
authors.lastname: Thomas
authors.forename: G Harvey
authors.initials: GH
authors.lastname: Anderson
mesh_terms: D000293:Adolescent; D001066:Appetite / Q000187:drug effects; D001628:Beverages; D002648:Child; D004435:Eating / Q000187:drug effects*; D002149:Energy Intake / Q000187:drug effects; D015444:Exercise; D005247:Feeding Behavior / Q000187:drug effects; D005947:Glucose / Q000494:pharmacology*; D006801:Humans; D008297:Male; D009765:Obesity; D050177:Overweight; D005082:Physical Exertion; D012528:Satiety Response / Q000187:drug effects; D057185:Sedentary Behavior; D013395:Sucrose / Q000008:administration & dosage / Q000031:analogs & derivatives; D013549:Sweetening Agents / Q000008:administration & dosage; D013995:Time
chemical_list: D013549:Sweetening Agents; D013395:Sucrose; C026285:trichlorosucrose; D005947:Glucose