Lifestyle Intervention for Young Adults With Serious Mental Illness

The 12-month PeerFIT intervention consists of a 6-month intensive phase including: (a) once weekly 60-minute group weight management and exercise session led by a lifestyle coach; (b) once weekly one-hour physical activity session delivered in community settings; and (c) Facebook and mHealth technology (i.e., Fitbits, text messaging support) to increase motivation and facilitate self-monitoring and peer social support for health behavior change. Participants then transition to a 6-month lower intensity phase in which the 90-minute weight management sessions are discontinued. The groups will be conducted as open groups with a minimum of 4 and maximum of 18 participants at any given time.

Participants in BEAT will receive monthly individual lifestyle sessions delivered by a lifestyle coach including education, guidance, and support for self-monitoring behaviors (i.e., daily self-weighing and tracking daily steps) during the first six months of the study, plus text message reminders and encouragement for self-monitoring weight loss behaviors during the entire 12-month study period. Participants will receive materials with tips and strategies for healthy eating and increasing physical activity. They will also be given a wearable activity tracker (i.e., Fitbit Zip) to use with instructions for using the device. The first session with the lifestyle coach will be in person and thereafter by phone.