According to a study done by Dr. Arlette Perry from the University of Miami, playing videogames can be a physical workout. Dr. Perry gathered together 21 boys between seven and 10 years old and had them play Tekken 3 competitively against each other. The study reports that as the boys played the game their heart rates went up as well as their blood pressure. The level of exertion was compared to brisk walking or cycling. Source: GameSpy and Archpedi