Lyons, E.J., Tate, D.F., Komoski, S.E., Carr, P.M., & Ward, D.S., Novel Approaches to Obesity Prevention: Effects of Game Enjoyment and Game Type on Energy Expenditure in Active Video Games contrasted effects of Wii Fit active games that are exercise-themed (such as a game designed to motivate and support jogging) versus those that are entertainment-themed (such as a hula hoop game), for young adults ages 18 to 35. The study found that exercise-themed games produced more energy expenditure, while entertainment-themed games were more enjoyable. The researchers concluded that integrating strenuous activity into entertainment-themed games, instead of exercise-themed games, may be a more successful strategy to attract players who are not very motivated to be physically active. Grantee: University of North Carolina.