Randomized Clinical Trial to Improve Mobility After Hospitalization

Participants sign a pre-commitment contract agreeing to try their best to achieve their daily step goal. Over the 26-week intervention period, participants are endowed 70 points (10/day) weekly and informed they will lose 10 points each day goal is not met. Points are replenished at start of each week. At the end of each week, if the participant has 40 points or more, they will advance a level, or drop a level if they have less than 40 points. The levels include blue (lowest), bronze, silver, gold, platinum (highest). Participants select a family member or friend as a support partner to receive weekly email on participants' progress (points, game level, and average step count). Participants will also work with a virtual health coach by attending group sessions organized by them with other participants through video calls once a month to discuss ways to motivate participants to increase their physical activity.