MyHeart Counts Cardiovascular Health Study

Summary

The MyHeart Counts Cardiovascular Health Study will utilize mobile health capabilities of smartphones and wearables to assess daily activity measures of the general population and compare these to measures of cardiovascular health risk factors and fitness. How people divide their time among exercise, sedentary behavior, and sleep all affect cardiovascular health, yet to date these have largely gone unmeasured. With the advancement of phone sensors and wearable fitness tracking devices these factors are now more straightforward to gather and measure. The use of smartphones by a large segment of the population allows for data collection on an unprecedented scale. The investigators aim to amass activity and cardiovascular health data on thousands of participants as well as provide significantly more quantitative data on type,duration, and intensity of daily activities.

In the second phase of the MyHeart Counts Cardiovascular Health Study (Randomized Assessment of Physical Activity Prompts In A Large Ambulatory Population) the researchers will conduct a randomized controlled clinical trial of four different physical activity prompts (intervention) and their effect on the level of physical activity in the study population as measured by change in step count.

Conditions

• Cardiovascular Health

Interventions

BEHAVIORAL

Stand Prompt

The participant will receive a notification asking them to stand or walk if they have been sitting for longer than 60 minutes

BEHAVIORAL

Step Prompt

The participant will receive a notification if they are below 5000 steps by 3pm each day asking them to get to 10000 steps.

BEHAVIORAL

Cluster Prompt

The participant will receive daily information notifications specific to the activity cluster they fall into based on the activity data collected in phase 1 of the study

BEHAVIORAL

Read AHA website

Daily reminder to read the newsfeed from the American Heart Association (AHA) website, this is a control arm

Sponsors & Collaborators

• Stanford University

  lead OTHER

Principal Investigators

• Euan Ashley, MD · Stanford University

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2015-03-31

Primary Completion

2026-07-31

Completion

2029-12-31

Countries

• United States

Study Locations