Overview of Procedures. The investigators developed a prototype mobile app to monitor ClockWork target behaviors, and now aim to gain stakeholder input to refine the interface and improve usability via feedback from postpartum women who began pregnancy with obesity. In this pilot trial, women (N=50) will complete baseline assessments in the first month postpartum and be randomized to either usual care (n=25) or ClockWork (n=25) for 4 months, then complete assessments.~Participants & Recruitment. Given that the investigators want to initiate treatment quickly after delivery, women will be recruited at the end of pregnancy through Magee-Womens Hospital. Women will be randomized to receive either the ClockWork intervention or Usual Care. ClockWork is a behavioral weight loss intervention comprised of coaching sessions as well as digital monitoring and feedback tools. It addresses 4 key behaviors related to the circadian timing system (CTS), weight, and health and their Amount, Regularity & Timing-the ART of ClockWork. Women will receive 12 tailored coaching sessions to review digital monitoring of each key behavior, learn intervention content, and set goals, which are delivered in-person, by phone, or web to fit women's needs postpartum. Coaches (Dr. Kolko Conlon or study interventionist) will use women's baseline responses to tailor sessions around the key behaviors. The investigators will protocolize real-time monitoring to increase engagement and adherence, and to facilitate just-in-time adaptive reminders, recommendations, and coaching sessions. Usual Care consists of an e-newsletter on maternal health, postpartum weight loss, and general calorie guidelines for lactating/nonlactating women.
The ClockWork Postpartum Weight Management Pilot Study is an intervention study that will assess the feasibility, acceptability, and initial efficacy of the ClockWork intervention among women with prepregnancy obesity during the first 4 months postpartum.