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One workout may change your sleep – study uses smartwatches to find out

NCT ID NCT07382206

Knowledge-focused Sponsor: Associação Fundo de Incentivo à Pesquisa Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at how one session of intense exercise changes sleep patterns in people who have frequent leg movements during sleep (PLMS). Researchers will compare people with and without PLMS using sleep tests and wearable devices. The goal is to learn more about how exercise affects sleep and to help develop future sleep-tracking technology.

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 150 people

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

Started

Dec 2024

Expected to finish

Apr 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

22 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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.

General Inclusion Criteria: * Aged 22 years or older; * Self-reported habitual sleep of at least 5 consecutive hours per night. Specific Inclusion Criteria for the PLMS Group * Having a prior polysomnography (PSG) showing a PLMS index ≥ 15/h; * Screening PSG for participants without a PSG in the last 6 months showing a PLMS index ≥ 15/h. Note: Efforts will be made to ensure that approximately 50% of the sample consists of participants with a PLMS index \> 50/h. - General Exclusion Criteria: * Pregnant or lactating individuals; * Presence of dermatological conditions or skin diseases such as vitiligo, lupus, atopic dermatitis, or tattoos on the wrist or fingers that could interfere with optical sensor readings from the smartwatch or smart ring; * Inability to attend the study PSG sessions; * Use of medications indicated for the treatment of sleep disorders; * Current or prior treatment for PLMS management; * Presence of implanted cardiac devices, such as pacemakers, cardioverter defibrillators, or cardiac resynchronization devices; * Prior diagnosis of chronic neurological, orthopedic, cardiac, pulmonary, or other clinical conditions that limit the ability to perform physical activity. Specific Exclusion Criteria for the Control Group: -Presence of sleep disorders identified on the screening PSG, such as: moderate to severe sleep apnea (apnea-hypopnea index \[AHI\] ≥ 15), insomnia with an Insomnia Severity Index (ISI) score above 14, or PLMS index \> 15.-

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Conditions

The condition(s) this trial relates to.

Nocturnal Myoclonus Syndrome periodic limb movement disorder

As listed by the trial registrant

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

Periodic leg movements, excessive, sleep-related

How to take part

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

  1. The places running it

    1 site. The list below names each one and where it is.

  2. 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 ↗

  3. 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

  • CDEC Brasil

    RECRUITING

    São Paulo, São Paulo, 04020060, Brazil