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Active Video Games Do Not Promote Negative Energy Balance



sharma-obesity-videogame-pacmanThe dream of many teenagers (and parents?) is the notion that active video gaming can help manage weight by burning off those extra calories.

Unfortunately, judging by a randomised-controlled trial by Aidon Gribbon and colleagues from the University of Ottawa, published in the American Journal of Clinical Nutrition, this remains but a dream.

For this study, 26 male adolescents were randomised to three 1-hour sessions of rest, seated video game and an active video game. This was each followed by an ad libitum lunch. The researchers also asked the subjects to complete dietary records for another 3 days

Energy expenditure was measured by using portable indirect calorimetry throughout each experimental condition, and an accelerometer was used to assess the subsequent 3-d period.

Although energy expenditure (as measured by indirect calorimetry) was significantly higher during the active game, there was no significant differences in energy balance at 24hrs or 3 days after the end of the game (no surprise here).

Thus, while the researchers did not see any change in appetite or food intake after the active game, they also found no difference in energy balance after 24 hrs.

Thus, the energy expended during the game was apparently fully compensated for, suggesting that active gaming may have a rather modest (if any) effect on energy balance.

As to exactly how this compensation happens – the researchers attribute this to the:

“compensatory adaptation in spontaneous physical activity occurs subsequent to playing Kinect, resulting in no significant differences in net energy expenditure over the course of 24 h. This compensation in PAEE after engaging in AVGs is consistent with results from exercise trials that showed that individuals tend to compensate for physical activity interventions by decreasing subsequent spontaneous physical activity levels”

On a positive note, the authors also did not see an expected increase in caloric intake after the games.

Whether or not active video gaming over time may lead to different effects remains to be seen.

@DrSharma
Edmonton, AB

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