Active video games may be good source of physical activity

Active video games may be good source of physical activity

Active video games may be good source of physical activity
Active video games can be a better source of physical activity than outdoor play for children between the ages of five and eight, a new study suggests.

The study by researchers at the University of Tennessee, Knoxville goes against the conventional wisdom that video games discourage physical exercise in children. "Our study shows video games which wholly engage a child's body can be a source of physical activity," said Hollie Raynor, director of UT's Healthy Eating and Activity Laboratory and associate professor of nutrition.

"Previous studies investigating active video games had not investigated the energy expenditure of these games as compared to unstructured outdoor play. "The purpose of the study was to compare energy expenditure to unstructured outdoor play," Raynor said.

Children between the ages of five and eight years old were given three accelerometers - one for the hip and one for each wrist. The accelerometers on the wrists were placed to better assess upper-body movement, which may be very different in outdoor play compared with playing an active video game.

During a three-week period, each child engaged in one active video gaming session and one unstructured outdoor playtime. Each session lasted 20 minutes, and participants could stop and rest at any point.

The outdoor play session took place on a playground with two grassy areas, a small paved area, a climbing tree, hula hoops, playground equipment and an assortment of balls. Children were allowed to participate in any type of activity. The active video gaming session took place with a 40-inch television and the Xbox 360 Kinect, a controller-free gaming system that incorporates the whole body in the game through motion sensors and skeletal tracking.

The Kinect Adventures River Rush video game was selected for the study as it involves total body participation, and requires no special set of skills to play. Trained observers used the Children's Activity Rating Scale to record activity levels, and estimated energy expenditure was reported in minute-by-minute counts.

A significant difference between active video gaming and outdoor play was found for the accelerometer located on the hip of participants, with active video gaming having a greater percentage of moderate to vigorous intensity than unstructured outdoor play. These findings suggest that active video games may be a good source of physical activity for younger children. "We're not saying video games should replace outdoor play, but there are better choices people can make when choosing the types of video games for their children," said Raynor.
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