Energy expenditure and enjoyment of active video games vs. other activities in 10-12 year old boys

Children are becoming more inactive and are spending a significant proportion of their time participating in screen-time sedentary behaviours. New generation active video games may provide an opportunity to convert traditional sedentary screen-time into active screen-time. The aims of this thesis were to: 1) determine the metabolic costs of different activities; 2) determine whether experience and fitness influence the metabolic costs of active video games; and 3) determine children's enjoyment of active video games. Accordingly, this thesis is presented as two papers. Twenty-six boys' (11.4 ± 0.8 yr) participated in the study. Each performed sedentary activities (resting, watching television and sedentary gaming), active video games (Nintendo® Wii Bowling, Boxing, Tennis, Skiing and Step Aerobics), traditional physical activities (walking and running) and a maximal fitness test. During all activities oxygen uptake and heart rate were measured and energy expenditure (EE) calculated. The active video games resulted in a significantly higher EE compared to rest (63-190%, p