Patients with type 2 diabetes were recruited via treating physicians or articles in magazines and newspapers. Participants were randomized in an intervention and a control group. The intervention group was sent the Wii, the balance board and the interactive video game Wii Fit Plus and were instructed to use these items 30 minutes each day during the next 12 weeks. The control group got the items 12 weeks later. At begin and after 12 weeks of intervention participants (and additionally for the control group: after 12 weeks of waiting phase) sent their health parameters, which had been measured in the context of the disease management program type 2 diabetes as well as questionnaires about physical activity and quality of life to the study center.