Twitter-Based Social Support Added to Fitbit Self-Monitoring for Decreasing Sedentary Behavior: Protocol for a Randomized Controlled Pilot Trial With Female Patients From a Women’s Heart Clinic

Marily Oppezzo   ¹ , RD, MSc, PhD ;   Jennifer Tremmel   ² , MD ;   Manisha Desai   ³ , PhD ;   Michael Baiocchi   ⁴ , PhD ;   Danielle Ramo   ^{5, 6} , PhD ;   Mark Cullen   ⁷ , PhD ;   Judith J Prochaska   ¹ , PhD

¹ Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, CA, United States

² Interventional Cardiology, Women's Heart Health at Stanford, Stanford, CA, United States

³ Quantitative Science Unit, Stanford University School of Medicine, Stanford, CA, United States

⁴ Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA, United States

⁵ Department of Psychiatry and Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, United States

⁶ Hope Lab, San Francisco, CA, United States

⁷ Primary Care and Population Health, Stanford University School of Medicine, Stanford, CA, United States