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AI coach in your pocket: could a chatbot boost your workout?

NCT ID NCT07654868

Knowledge-focused Sponsor: University of Florida Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 21, 2026 · Updated 1 time

Summary

This pilot study tests whether using a large language model (LLM) AI chatbot can help people increase their physical activity. 39 adults who want to be more active will be split into three groups: one uses the AI on their own, one gets extra guidance on using the AI, and one uses sleep resources as a comparison. The main goal is to see if the study is feasible, not to prove the AI works.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Large language model (AI chatbot) for physical activity promotion
What this could lead to
If successful, this could show that AI chatbots are a useful, low-cost tool to help people become more active.
What could go wrong
This is a very small pilot study (39 people) testing feasibility, not effectiveness. It may not show any real change in activity levels.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

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

About 39 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

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

18 to 75 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 18-75 * Reports a desire to increase physical activity level * Not meeting minimum aerobic PA as indicated by L-CAT endorsement indicating level of activity below moderate (moderate defined as \>= 5x/week activity or higher) * Reports willingness to use LLMs to help with exercise goals. * Access to internet through phone data plan or home Wi-Fi. Exclusion Criteria: * Conditions warranting more extensive supervision of physical activity, including: * Any history of MI or stroke, arrhythmias, or heart failure * Uncontrolled hypertension * Type 1 or 2 diabetes * COPD or asthma * Recent orthopedic surgery or fracture * Advanced Parkinson's * Pregnant or planning to become pregnant in next 9 months * Active cancer undergoing treatment * Recent major surgery (\<12 weeks) * Use of assistive devices for ambulation * History of eating disorder diagnosis * Dementia diagnosis * Unable to read on own. * Hospitalization for mental health reasons in past year * Has used LLM to support physical activity goals in prior 3 months. * Currently enrolled in a structured program to promote physical activity or weight loss.

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Conditions

The condition(s) this trial relates to.

Motor Activity

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Physical activity

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. 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.

More trials for these conditions

Other studies related to the condition(s) this trial covers.