Interventions
Patients assigned to the smartphone arm were set up in the hospital with the Withings Health Mate smartphone application which used accelerometers in the smartphone to track physical activity patterns. They were asked to open the application at least once a day to sync the device. These patients were told they would receive a wearable device after their 6-month period completed. Patients assigned to the wearable device arm were also setup in the hospital with the Withings Steel which had a battery that lasted up to 8 months without recharging. In addition to tracking physical activity patterns, the wearable also tracked sleep patterns. Patients were asked to wear the device as much as possible including while sleeping and to sync it with the Withings Health Mate Smartphone application at least once a day.In both arms throughout the 6-month period, patients were sent a reminder to sync their device if data had not been transmitted for four consecutive days. All patients received $50 to enroll and $50 to complete the trial.