NCT06337708 · Arizona State University
Smart Walk: A Culturally Tailored Smartphone-Delivered Physical Activity Intervention for African American Women
What this study is about
The purpose of this study is to test a culturally tailored, smartphone-delivered intervention designed to increase physical activity and reduce risk for heart disease and type 2 diabetes among African American women.
View original scientific description
The purpose of this study is to test a culturally tailored, smartphone-delivered intervention designed to increase physical activity and reduce risk for heart disease and type 2 diabetes among African American women.
Interventions
BEHAVIORAL
Smart Walk
Smart Walk is a culturally tailored, Social Cognitive Theory-based multi-component smartphone delivered physical activity (PA) promotion intervention that delivered through the Smart Walk application, virtual physical activity coaching, and text messages. The Smart Walk smartphone application includes four key features: 1) personal profile pages, 2) culturally relevant multi-media physical activity promotion modules, 3) discussion boards, and 4) physical activity self-monitoring/tracking feature that integrates with Fitbit activity monitors for participants to track their daily, weekly, and monthly activity. Virtual physical activity coaches will actively engage and facilitate group-based dialogue among participants on the app discussion boards and provide individualized, one-on-one PA coaching via telephone or commercially available app-based video teleconferencing software (i.e., FaceTime, Zoom, Google hangouts).
BEHAVIORAL
Fitbit
This intervention group will receive a Fitbit activity monitor and be encouraged to use the commercially available device to increase physical activity.
Primary outcome measures
Change in accelerometer-measured moderate-to-vigorous intensity physical activity from baseline to 4- and 12-months
Time frame: Assessed at baseline, 4-months, 12-months
Participants will wear wrist-worn ActiGraph GT9X Link Activity monitors the activity monitor on their non-dominant wrist during all waking hours for 7 consecutive days to provide an assessment of usual activity
Change in self-reported moderate-to-vigorous intensity physical activity from baseline to 4- and 12-months
Time frame: Assessed at baseline, 4-months, 12-months
Assessed by the 7-Day Physical Activity Recall
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Self-reported African American/Black female
- Aged of 24-65 years
- Insufficiently Active (\< 60 minutes of moderate-to-vigorous physical activity per week as measured by Exercise Vital Sign Questionnaire)
- BMI \> 30 kg/m2
- English speaking and reading
- Ownership of a smartphone with the ability to download applications (i.e., apps)
- Ownership of a smartphone with the ability to receive text messages
- Willingness to receive a physical activity intervention delivered through their smartphone
- Willingness to include their first name or create an alias to be used on their profile page on the Smart Walk app
Exclusion criteria
- Plans to relocate out of Phoenix area in next 12 months
- Endorsing an item on the Physical Activity Readiness Questionnaire (PAR-Q), unless a doctor's note for study participation in provided
- Resting systolic blood pressure greater than 180 mmHG and/or a diastolic blood pressure greater than 120 mmHG , as assessed at baseline or at any other study assessment
- Self-reported participation in another diet or weight loss study at screening
- Pregnant or planning to become pregnant in the next 12 months
Where
- Phoenix, Arizona
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 17, 2026 · Source of record for eligibility and locations