Physical activity is known to help patients with heart failure feel better and live longer though few patients with heart failure are sufficiently active. This study is evaluating whether a mobile health intervention can help patients with heart failure increase physical activity levels and remain active over time. The mobile health intervention consists of three parts: Notifications encouraging physical activity, a digital health coach trained in motivational interviewing, and a mobile application which encourages goal setting and activity monitoring.
Hypotheses: 1. Push notifications as part of a mobile health intervention will increase immediate (4 hour) physical activity levels among participants with heart failure. 2. A multicomponent mobile health intervention will increase physical activity levels at 3 months among participants with heart failure. 3. An artificial intelligence (AI) based health coach promoting physical activity will be safe among participants with heart failure.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
50
Following a baseline period, participants will receive a 12 week mobile health intervention consisting of 3 main components: (1) a mobile application which supports goal-setting and self-monitoring; (2) an artificial intelligence (AI)-based health coach within the mobile application trained in principles of motivational interviewing and tailored to the needs of patients with heart failure (3) micro-randomized messages designed to enhance perceived competence around physical activity and promoting low level physical activity.
University of Michigan
Ann Arbor, Michigan, United States
Step count 4 hours after a decision point for micro-randomized messages
Time frame: 4 hours after a decision point
Change in mean daily step count from baseline to 3 months
Participants will wear a Fitbit activity tracker for the duration of the study
Time frame: Baseline, 3 months
Percentage of transcripts with a recommendation that is deemed unsafe by the study team
AI-based health coaching conversations determined to be unsafe based on study team review.
Time frame: 3-month intervention
Changes in autonomous motivation from baseline to 3 months on the Behavioral Regulation in Exercise Questionnaire version 3 (BREQ-3)
The BREQ-3 is a widely used measure of the continuum of behavioral regulation in exercise psychology research. The BREQ-3 is 24 questions and the score ranges from 0-4 with higher scores indicating a greater level of endorsement of autonomous motivation. It will be measured at 2 time points. Autonomous motivation will be calculated by combining the identified, integrated, and intrinsic regulation subscales of the BREQ-3.
Time frame: Baseline, 3 months
Change in controlled motivation from baseline to 3 months on the Behavioral Regulation in Exercise Questionnaire version 3 (BREQ-3).
The BREQ-3 is a widely used measure of the continuum of behavioral regulation in exercise psychology research. The BREQ-3 is 24 questions and the score ranges from 0-4 with higher scores indicating a greater level of endorsement of controlled motivation. It will be measured at 2 time points. Autonomous motivation will be calculated by combining the identified, integrated, and intrinsic regulation subscales of the BREQ-3.
Time frame: Baseline, 3 months
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Change in mean daily step count by week over the study duration
Time frame: Weekly up to 3 months (intervention period)