Energy expended playing Xbox Kinect™ and Wii™ games: a preliminary study comparing single and multiplayer modes.
OBJECTIVE
It has been reported that a higher galvanic skin response is seen when playing video games against another human player than when playing alone, which suggests increased effort. The objectives of this study were to compare energy expenditure when playing two popular active video game consoles, and to compare energy expenditure when playing in single and multiplayer modes.


METHODS
Crossover trial with randomised playing order.


METHODS
Fourteen healthy adults with a mean age of 21 [standard deviation (SD) 3] years.


METHODS
Energy expenditure was measured using an indirect calorimeter at rest, during 10 minutes of play on Xbox Kinect™ Reflex Ridge in both single and multiplayer modes, and during 10 minutes of play on Wii™ Sports Boxing in both single and multiplayer modes.


METHODS
Metabolic equivalents (METs), heart rate, oxygen consumption and kilocalories expended.


RESULTS
The energy expenditure during all gaming conditions was of a light intensity. Playing on the Xbox Kinect elicited greater energy expenditure than playing on the Wii [mean difference=0.9 METs, 95% confidence interval (CI) 0.2 to 1.5]. Playing games in multiplayer mode led to greater energy expenditure (mean difference=0.5 METs, 95% CI 0.1 to 0.9) and heart rate (mean difference=7.9 beats/minute, 95% CI 2.0 to 13.8) than playing in single player mode.


CONCLUSIONS
No gaming condition required moderate-intensity activity in this group of young healthy adults. Potential explanations for the difference in energy expenditure seen between consoles and modes are discussed.
Discipline of Physiotherapy, School of Medicine, Trinity College Dublin, Dublin, Ireland. odonovc@tcd.ie
C
C
O'Donovan
E
E
Hirsch
E
E
Holohan
I
I
McBride
R
R
McManus
J
J
Hussey
D000293:Adolescent; D018592:Cross-Over Studies; D004734:Energy Metabolism / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D005260:Female; D005712:Galvanic Skin Response / Q000502:physiology; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D008297:Male; D010809:Physical Fitness / Q000502:physiology*; D010865:Pilot Projects; D014584:User-Computer Interface; D018910:Video Games; D055815:Young Adult