Using Web 2.0 applications to promote health-related physical activity : the Walk 2.0 trial

Given the role that physical activity plays in reducing the risk of several noncommunicable diseases, approaches to promoting activity in a novel and engaging manner, and with broad reach, are required. Websites using Web 2.0 technologies (including social networking) have potential to engage participants for longer periods, and more frequently, in comparison to websites that do not contain these features. The primary aim of the Walk 2.0 trial was to investigate the effects of a Web 2.0 intervention on physical activity levels. Conclusions: Despite the initial effectiveness of the Walk 2.0 intervention in increasing MVPA at 3 months, less interactive interventions facilitated greater changes in activity over the longer term