The MObile Health InterVEntion in Pulmonary Arterial Hypertension (MOVE PAH) Study

The Health Insurance Portability and Accountability Act (HIPPA) compliant texting platform is linked to the Fitbit Application Program Interface. Real time activity data will be transmitted from the subject's smartphone to the mHealth platform via cellular network. Participants assigned to the texting arm will receive 3 texts/day in sync with their preferred morning, lunch, and evening leisure schedule, which is defined at enrollment. These texts will use personal, disease-specific, and provider information to deliver 2 types of messages customized to the current step count and sent in equal proportion. Messages are designed to facilitate self-awareness, reinforce step targets, and link physical activity with a reward or memorable cue.

The HIPPA-compliant texting platform is linked to the Fitbit Application Program Interface. Real-time activity data will be transmitted from the subject's smartphone to the mHealth platform via cellular network.