Clinical Research Directory

1. In-Person LPA+Fitbit Orientation. During an initial, orientation (45 minutes), a study interventionist will provide information regarding the acute and long-term psychological and physical benefits of increasing PA, including prenatally. 2. Telephone PA counseling sessions. A study interventionist will call participants at weeks 2, 4, 6, 8, and 10 of the intervention for a 20-min telephone session. 3. Fitbit activity tracker. With participant permission, a Fitbit account (on Fitbit.com) and study-generated password will be created. In doing so, investigators will have access to the participant activity data throughout the intervention. The Fitbit web-based and mobile apps facilitate goal-setting by allowing participants to easily set goals and change these goals at any point. We will customize each participant account to display daily steps and very active minutes, though they will be encouraged to adjust the display according to their preferences.

1. In-person Fitbit Orientation. Participants will be given information on the public health guidelines for PA during pregnancy, and as well as how to determine if their PA is moderate-intensity. In addition, interventionists will orient participants to the proper use of the Fitbit tracker and offer tips for self-monitoring step counts with the tracker and on the app. 2. Fitbit Activity Tracker. Participants will be given the same Fitbit as in the LPA condition. Participants will not be given any specific step count goals to achieve during the 12-week intervention. 3. Brief Telephone Check-ins. As with the LPA+Fitbit participants, those in the Fitbit Only condition will receive phone calls on weeks 2, 4, 6, 8, 10. These calls will last 5 minutes and be focused entirely on answering any problems related to the Fitbit such as syncing issues, charging the battery, and any other technical problems that may arise. No physical activity counseling will be delivered on these calls.