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Mobile Health Technology for Obesity and Heart Health in African American Women

This study is looking at how mobile health technology can help African American women who are overweight or obese improve their physical activity and heart health. Researchers want to see if using the "Step it Up mobile app" along with devices like a GPS device, Bluetooth-enabled scale, and Bluetooth-enabled glucometer, can lead to more physical activity. The study will compare two approaches: one that offers coaching tailored to your neighborhood resources, and another that starts with standard remote coaching. The main goal is to see the difference in physical activity changes between these two groups over six months. You may be able to join if you are an African American woman, aged 21-75, overweight or obese, live in specific areas near Washington, DC, and have a compatible smartphone.

Study design
This is an interventional study with a planned enrollment of 325 participants. It will compare two different coaching approaches for increasing physical activity.
What's involved
You will answer survey questions about your health, physical activity, and other topics at the first visit. The study will last for six months.
Compensation
Not stated in the trial record.
Follow-up
Physical activity changes will be measured at baseline and up to 6 months.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT03288207

Tailoring Mobile Health Technology to Reduce Obesity and Improve Cardiovascular Health in Resource-Limited Neighborhood Environments

Recruiting
NAAges 21–75InterventionalBasic science
National Heart, Lung, and Blood Institute (NHLBI)
~325 participants
Updated 2026-08-31 on ClinicalTrials.gov
What's tested:Step it Up mobile appGlobal Positioning System (GPS) DeviceBluetooth-enabled scaleBluetooth-enabled glucometerMRI: Image Reconstruction and Analysis Software (Device Manufacturer: NIH)MRI: Research pulse sequences (Device Manufacturer: NIH)

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
The difference in physical activity (PA) change between an adaptive intervention with remote coaching tailored to neighborhood resources (referred to as tailored-to-place coaching) versus beginning w/ standard remote coaching
Measured over baseline, and up to 6 months

Conditions

Obesity

Explore related trials

ObesityRisk of cardiovascular disease

Where it's being run

1 sites across 1 states
Maryland1

Study leadership

  • Tiffany M Powell-Wiley, M.D. · PRINCIPAL_INVESTIGATOR · National Heart, Lung, and Blood Institute (NHLBI)

Who to contact

Marie Marah, R.N.
[email protected]
(301) 640-1701
Email the study team

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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Must be an African-American female
Must be within the age of 21-75 years old
Must have overweight or obesity (Body Mass Index (BMI) \>= 25 kg/m\^2)
Must live in Washington DC Wards (5, 7, or 8) or live in Prince George s County, Maryland
Must have a smartphone that is compatible with the study software (mobile app)
Must be willing to use the software on personal smartphone for the study
Must be able to provide consent
Must be willing to wear the wrist-worn physical activity device for the study
Must not be pregnant

Exclusion

Medical condition, including heart failure, recent unintentional weight loss or physical limitation, that might prohibit safe participation in physical activity for any reason
Heart disease as indicated by history of myocardial infarction in past 1 year, documented obstructive coronary artery disease on coronary angiography, coronary artery stent placement within the last year significant structural heart disease (e.g. hypertrophic or dilated cardiomyopathy with EF \<35%, severe valvular heart disease) with evidence of decompensation.
Pregnant women due to large hormonal changes during pregnancy that affect study variables and potential pregnancy-related restrictions on exercise. All participants of childbearing potential will need to self-report a negative pregnancy at the screening visit, baseline visit, and at the three-month and six-month visits, unless the participant self-reports being postmenopausal, having had a tubal ligation, or having undergone a complete hysterectomy.
they are unwilling or unable to be evaluated and followed as clinically indicated (examples might include participants with severe behavioral problems who refuse physical examination).
they do not have a primary healthcare provider or do not accept recommendations provided by study team for provider resources / referral networks.
they have a chronic or acute medical condition severe enough to interfere with overnight sleep study acquisition, such as a tracheotomy, uncontrolled seizure disorder, ventilator dependency, or history of stroke or major neurologic insult.
they work night shift.
they have started any new medications that modify sleep within the last two weeks.

What this trial measures

  • The difference in physical activity (PA) change between an adaptive intervention with remote coaching tailored to neighborhood resources (referred to as tailored-to-place coaching) versus beginning w/ standard remote coachingbaseline, and up to 6 months

    The difference in physical activity (PA) change (as measured by steps/day) by beginning an adaptive intervention with remote coaching tailored to neighborhood resources (referred to as tailored-to-place coaching) versus beginning with standard remote coaching.