 The primary outcome measure will be the time spent in moderatevigorous physical activity. In addition, time spent in sedentary behaviours will be recorded. Participants will wear a SenseWear Mini accelerometer for 7 days at baseline, 2 months, and 4 months. Secondary outcome measures include sedentary time measured with SenseWear Mini, health status that will be measured using the SF-36 a generic measure of health-related quality of life, and body weight. Participants use of KDC Health programs and their motivation to be physically active will also be recorded. 