Fitbit plus coaching may trim waistlines and cut heart risks
NCT ID NCT07379970
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether using a wearable fitness tracker, alone or with health coaching, helps adults aged 40+ with central obesity (belly fat) become more active and improve heart health markers. 133 participants will be split into three groups: one gets a Fitbit with coaching, one gets only the Fitbit, and one continues their usual routine. The goal is to see if these tools lead to lasting changes in movement, weight, and blood pressure over one year.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 133 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2025
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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40 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age 40 years or older * Central obesity, defined as waist circumference: ≥90 cm for men; ≥80 cm for women * Insufficient physical activity based on World Health Organization (WHO) guidelines * Physical activity assessed using the International Physical Activity Questionnaire (IPAQ) - Short Form * Ownership of a smartphone * Able to read and understand English or Chinese Exclusion Criteria: * unable to perform daily-life activities, based on the Physical Activity Readiness-Questionnaire (PAR-Q) (24) and/or participation in another lifestyle-change intervention study.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Exercise Physiology Lab, The University of Hong Kong
RECRUITINGHong Kong, Hong Kong
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