Case Study

A Mobile Intervention Grounded in Social Science Principles

In Collaboration With:

Medtronic is a global leader in medical technology, services and solutions.


Weight fluctuations can be a dangerous indicator for patients with heart failure. Increases need to be caught early to provide the appropriate care (such as adjusting medication dosage), thus reducing the likelihood of hospitalization. Patients are encouraged to weigh themselves daily, but many fail to do so in spite of the clear benefits.


Through focus groups and an experimental trial, we tested features in a mobile app created by Pattern Health to encourage weight tracking and improve the psychological well-being of patients with heart failure. To improve the behavioral outcome of on-demand weight tracking in response to an unexpected prompt, we gave participants a smart scale and asked them to occasionally set an implementation intention whereby they specify exactly when they will take a weight measurement later that day to coincide with other evening activities (i.e. “after I brush my teeth”).

In addition, we aimed to increase heart failure patients’ sense of control, mastery of their condition, and mood. To increase patients’ sense of control, we allowed them to customize the timing of their medication reminders. Mastery was increased by giving participants quizzes about their condition that were impossible to fail. We gave participants pleasant activities to choose from and complete in order to elevate mood and well-being.


In existing research and in our patient panel discussions, we learned that establishing implementation intentions may lead to an increased likelihood of adopting behaviors, such as weighing oneself regularly. There was also an indirect benefit in that the participants are able to be outside more regularly and therefore benefit from increases in physical activity. Although the experimental trial portion of this study is ongoing, we hope to find that the intervention both improves on-demand weight tracking and psychological well-being among heart failure patients.

Value for Sponsor

Information gleaned from the focus groups was shared with Medtronic and will help inform their corporate priorities.

Overall, the company was able to see how different behaviors improve patients’ response to their products. Medtronic also plans to use findings from this initial study in follow-up research.