title: Comparative effects of TV watching, recreational computer use, and sedentary video game play on spontaneous energy intake in male children. A randomised crossover trial.
abstract: To compare the effects of three screen-based sedentary behaviours on acute energy intake (EI) in children. Normal-weight males aged 9-13 years participated in a randomised crossover trial conducted in a laboratory setting between November 2012 and February 2013 in Auckland, New Zealand. EI during an ad libitum meal was compared for three 1-hour conditions: (1) television (TV) watching, (2) sedentary video game (VG) play, and (3) recreational computer use. The primary endpoint was total EI from food and drink. Mixed regression models were used to evaluate the treatment conditions adjusting for age, BMI, and appetite at baseline. A total of 20 participants were randomised and all completed the three conditions. Total EI from food and drink in the TV, computer, and VG conditions was estimated at 820 (SE 73.15), 685 (SE 73.33), and 696 (SE 73.16) kcal, respectively, with EI being significantly greater in the TV versus computer condition (+135; P = 0.04), a trend towards greater intake in the TV versus VG condition (+124; P = 0.06), but not significantly different between the computer and VG conditions (-10; P = 0.87). TV watching was associated with greater EI compared with computer use, and a trend towards greater EI compared with VG play.
authors.affiliation: National Institute for Health Innovation, Auckland Mail Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand. Electronic address: s.marsh@nihi.auckland.ac.nz.
authors.forename: Samantha
authors.initials: S
authors.lastname: Marsh
authors.affiliation: National Institute for Health Innovation, Auckland Mail Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
authors.forename: Cliona
authors.initials: C
authors.lastname: Ni Mhurchu
authors.affiliation: National Institute for Health Innovation, Auckland Mail Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
authors.forename: Yannan
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: National Institute for Health Innovation, Auckland Mail Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
authors.forename: Ralph
authors.initials: R
authors.lastname: Maddison
mesh_terms: D001066:Appetite; D015992:Body Mass Index; D001835:Body Weight; D002648:Child; D003201:Computers; D018592:Cross-Over Studies; D004435:Eating; D002149:Energy Intake; D006801:Humans; D008297:Male; D009520:New Zealand; D010988:Play and Playthings; D011998:Recreation; D012016:Reference Values; D057185:Sedentary Behavior; D013690:Television; D018910:Video Games
keywords: Children; Crossover trials; Energy intake; Sedentary lifestyle; Television; Video games