Improving Blood Pressure Control Through the myBPmyLife mHealth Application

Improving Blood Pressure Control Through the myBPmyLife mHealth Application: A Wearables in Reducing Risk and Enhancing Daily Lifestyle (WIRED-L) Center Study

This study is enrolling eligible participants that have high blood pressure. Reducing dietary salt intake and engaging in regular physical activity is known to decrease blood pressure in people with hypertension. This trial will determine whether a smartwatch and a mobile health application, which together deliver notifications, can increase activity levels and reduce salt intake for people with high blood pressure. All study activities will be completed online or via a mobile medical application. Participants will not have any face-to-face visits with the study team.

Inclusion Criteria:

• Self-reported history of hypertension and no hypertensive medication changes in the last 4 weeks.
• A smartphone with a compatible Apple or Android operating system installed and able to download and use the myBPmyLife app including accepting all permissions
• A valid email address
• Fluent in spoken and written English
• Signed written informed consent. (Note that each participant must be able to consent for themselves.)

Exclusion Criteria:

• Contraindication to performing physical activity or following a sodium restriction diet. The participant must be able to walk and eat on their own without assistive devices.
• Unstable symptoms or markedly elevated BP at enrollment (defined as systolic BP>180 mmHg, diastolic BP>120 millimeters of mercury (mmHg))
• Known secondary causes of hypertension (e.g., adrenal insufficiency, pheochromocytoma), heart failure, or end-stage renal disease
• Difficulty using an upper arm blood pressure cuff due to biceps size or end-stage renal disease or difficulty comfortably wearing a smartwatch
• Wrist too large to wear a smartwatch comfortably.
• Daily sodium intake less than 1500 mg/day as measured by the sodium screener
• Currently pregnant or planning to become pregnant in the next six months