Table 2.

Description of the physical activity and technology used in the interventions.

Study	Setting	Type of technology	PAa elements	Serious game description
Armbrust et al [18]	Home environment	Web-based application	Arthritis and physical activity education, including barriers, PA benefits, and information about self-efficacy towards becoming more physically active	Films, animations, spoken text, puzzles, brain twisters, and assignments to promote PA; goal setting; email reminders to complete assignments; and a feedback loop to verify whether the child had read the information and finished the assignment. Cognitive behavioral theory was used.
Baque et al [33]	Home environment	Exergame with internet-connected computer and Microsoft Kinect	Gross motor activities combined with cognitive and visual perception and upper limb exercises	Gross motor and daily PA assignments represented on a computer. An example is to use cognitive and visual perception and move the upper limb to solve a mathematical equation. Persuasive elements consisted of feedback and positive reinforcement by parents/guardians.
Christison et al [34]	Research laboratory	Exergame through a PlayStation and Nintendo Wii	Aerobic and muscle strength exercises	A group activity with several games, including aerobic dance, interactive stationary biking, hitting/kicking targets, and boxing. The games used goal setting and documentation of PA in diaries rewarded with small incentives (not specified).
Howell et al [40]	Home environment	Web-based application	Promotion of moderate to vigorous physical activities	The goal was to progress the avatar through various levels on a website. Educational materials, an activity monitor, and access to an interactive website were used to encourage PA via rewards. Points could be redeemed for small prizes (eg, t- shirts, stickers) and/or gift cards.
Maddison et al [35]	Home environment	Exergame through a PlayStation	Promotion of light- to moderate-intensity physical activity	The games were Play3, Kinetic, Sport, and Dance Factory. This was combined with information and education about PA.
Maloney et al [36]	Home environment	Exergame through a PlayStation and Wii	Promotion of physical dancing	Games to encourage dancing.
Mitchell et al [37]	Home environment	Web-based application	Functional gross motor exercises such as sit-to-stand, squatting, and balancing	The Web-based exercises involved upper limb and visual-perceptual games. Examples of active video games are flying a spaceship while squatting and balancing on foam or lunging to shoot a pirate ship with a cannon ball.
Staiano et al [38]	Research laboratory	Exergame through an Xbox 360 console	Encouragement of whole-body movement and moderate-intensity energy expenditure.	Different dance games. Games, songs, dance mode, intensity level, and dance partner were self-selected by the participant.
Trost et al [39]	Schools and young men's Christian associations	Exergame through an Xbox 360 console	Not specified	During the second session, the JOIN for ME program was supplemented with an active sports game. A second active game was provided in week 9 of the JOIN for ME program. No explicit advice or goal was given regarding the use of the active gaming tool.

^aPA: physical activity.