title: Food intake response to exercise and active video gaming in adolescents: effect of weight status.
abstract: Although a few data are available regarding the impact of video games on energy intake (EI) in lean adolescents, there is no evidence on the effect of passive and active video gaming on food intake in both lean and obese youth. It is also unknown whether isoenergetic active video games and exercise differently affect food consumption in youth. In all, twelve lean and twelve obese adolescent boys (12-15 years old) had to complete four 1-h sessions in a cross-over design study: control (CON; sitting), passive video game (PVG; boxing game on Xbox 360), active video game (AVG; boxing game on Xbox Kinect 360) and exercise (EX; cycling). The exercise and active video game activities were designed to generate the same energy expenditure (EE). EE was measured using a K4b2 portable indirect calorimeter. Ad libitum food intake and appetite sensations were assessed following the sessions. AVG and EX-EE were significantly higher in obese participants and significantly higher compared with PVG and CON in both groups. Obese participants significantly ate more than lean ones in all four conditions (P<0·001). EI did not differ between conditions in obese participants (CON: 4935 (SD 1490) kJ; PVG: 4902 (SD 1307) kJ; AVG: 4728 (SD 1358) kJ; EX: 4643 (SD 1335) kJ), and was significantly lower in lean participants after EX (2847 (SD 577) kJ) compared with PVG (3580 (SD 863) kJ) and AVG (3485 (SD 643) kJ) (P<0·05). Macronutrient intake was not significantly different between the groups or conditions. Hunger was significantly higher and satiety was lower in obese participants but no condition effect was observed. Overall, moderate-intensity exercise provides better effect on energy balance than an isoenergetic hour of active video gaming in lean adolescent boys by dually affecting EE and EI.
authors.affiliation: 1Healthy Active Living and Obesity Research Group,Children's Hospital of Eastern Ontario Research Institute,401 Smyth Road,Ottawa, ON,K1H 8L1,Canada.
authors.forename: J P
authors.initials: JP
authors.lastname: Chaput
authors.affiliation: 3Department of Kinesiology, Faculty of Medicine,Laval University,avenue de la Médecine,Quebec City, QC,G1V 0A6,Canada.
authors.forename: A
authors.initials: A
authors.lastname: Tremblay
authors.affiliation: 4Biostatistics Unit (Direction de la Recherche Clinique et de l'Innovation),Clermont-Ferrand University Hospital,Rue Montalembert,63000 Clermont-Ferrand,France.
authors.forename: B
authors.initials: B
authors.lastname: Pereira
authors.affiliation: 5Department of Human Nutrition,Clermont-Ferrand University Hospital,G. Montpied Hospital,Rue Montalembert,63000 Clermont-Ferrand,France.
authors.forename: Y
authors.initials: Y
authors.lastname: Boirie
authors.affiliation: 6INRA,UMR 1019,63122 Saint-Genès-Champanelle,France.
authors.forename: M
authors.initials: M
authors.lastname: Duclos
authors.affiliation: 7Unité de Formation et de Recherche Medicine,University Clermont 1,Rue Montalembert,63000 Clermont-Ferrand,France.
authors.forename: D
authors.initials: D
authors.lastname: Thivel
mesh_terms: D015502:Absorptiometry, Photon; D000293:Adolescent; D001066:Appetite; D001835:Body Weight; D002153:Calorimetry, Indirect; D002648:Child; D002149:Energy Intake; D004734:Energy Metabolism; D015444:Exercise; D006801:Humans; D006815:Hunger; D008297:Male; D063766:Pediatric Obesity / Q000378:metabolism; D012527:Satiation; D018910:Video Games
keywords: AVG active video game; Active video games; Appetite; CON control; EE energy expenditure; EI energy intake; EX exercise session; Energy intake; Exercise; PVG passive video game; Paediatric obesity; REI relative EI