IMPACT: Inactivity Monitoring and Physical Activity Controlled Trial

"Investigators will lend each participant 1 Jawbone Up activity monitor and 1 mini tablet device. Participants will receive weekly brief phone calls with counseling related to self-efficacy and self-regulation. The monitors will be programmed to provide idle alerts that vibrate when participants have reached a cut point for a bout of sedentary behavior (e.g., 30 minutes). Participants will monitor their progress using an app on the tablet that provides graphical feedback on physical activity and sedentary behavior."