• Publications
  • Influence
Effects of active video games on body composition: a randomized controlled trial.
BACKGROUND Sedentary activities such as video gaming are independently associated with obesity. Active video games, in which players physically interact with images on screen, may help increaseExpand
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Evidence that the prevalence of childhood overweight is plateauing: data from nine countries.
Until quite recently, there has been a widespread belief in the popular media and scientific literature that the prevalence of childhood obesity is rapidly increasing. However, high quality evidenceExpand
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Physical activity of children: a global matrix of grades comparing 15 countries.
The Active Healthy Kids Canada (AHKC) Report Card on Physical Activity for Children and Youth has been effective in powering the movement to get kids moving by influencing priorities, policies, andExpand
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Do physical activity and dietary smartphone applications incorporate evidence-based behaviour change techniques?
BackgroundThere has been a recent proliferation in the development of smartphone applications (apps) aimed at modifying various health behaviours. While interventions that incorporate behaviourExpand
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A Development and Evaluation Process for mHealth Interventions: Examples From New Zealand
The authors established a process for the development and testing of mobile phone-based health interventions that has been implemented in several mHealth interventions developed in New Zealand. ThisExpand
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Energy expended playing video console games: an opportunity to increase children's physical activity?
This study sought to quantify the energy expenditure and physical activity associated with playing the "new generation" active and nonactive console-based video games in 21 children ages 10-14 years.Expand
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A Theory-Based Video Messaging Mobile Phone Intervention for Smoking Cessation: Randomized Controlled Trial
Background Advances in technology allowed the development of a novel smoking cessation program delivered by video messages sent to mobile phones. This social cognitive theory-based interventionExpand
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International Physical Activity Questionnaire (IPAQ) and New Zealand Physical Activity Questionnaire (NZPAQ): A doubly labelled water validation
BackgroundAccurate measurement of physical activity is a pre-requisite for monitoring population health and for evaluating effective interventions. The International Physical Activity QuestionnaireExpand
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A Psychological Approach to the Prediction and Prevention of Athletic Injury
Two interrelated studies examined the role psychological factors play in the prediction and prevention of sport related injury. Study 1 involved 470 rugby players who completed measures correspondingExpand
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Couch potatoes to jumping beans: A pilot study of the effect of active video games on physical activity in children
The primary objective of this pilot study was to evaluate the effect of active video games on children's physical activity levels.Twenty children (mean ± SD age = 12 ± 1.5 years; 40% female) wereExpand
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