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Can breathing tricks help footballers recover faster?

NCT ID NCT07373158

Knowledge-focused Sponsor: Sierra Varona SL 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at whether activating the breathing muscles can help professional male football players recover better after exercise. Thirty players will be randomly assigned to one of three groups: electrical stimulation of the phrenic nerve, deep breathing against a resistance device, or simply resting. The researchers will measure heart rate variability and breathing strength to see which approach works best.

What this could mean

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

Active substance
Inspiratory muscle activation via phrenic nerve electrical stimulation or threshold breathing device
What this could lead to
If successful, this could point toward a simple, drug-free way to speed up recovery after intense exercise in athletes.
What could go wrong
This is a small, early-stage study with only 30 participants, so results may not apply broadly. The interventions are short-term and may not show meaningful benefits over just resting.

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 30 people

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

Expected to start

Jan 2026

An estimate. Start dates often move.

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

18 to 40 years

Sex

Male participants only

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.

Inclusion Criteria: * Male professional football player. * Currently under an active professional contract and participating in regular competition. * Aged between 18 and 40 years. * No participation in inspiratory muscle training (IMT) programs in the past 12 months. * Signed informed consent provided by the participant. Exclusion Criteria: * Musculoskeletal injuries or surgical interventions within the past 6 months. * Use of medications affecting cardiac or respiratory function (e.g., beta-blockers, beta-adrenergic inhibitors). * Presence of any acute and/or chronic disease (cardiorespiratory, neurological, metabolic, oncological, etc.). * Use of tobacco, recreational drugs, or stimulant substances. * Metallic implants in the cervical region. * Presence of a pacemaker. * Current participation in other inspiratory muscle training programs.

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Conditions

The condition(s) this trial relates to.

Athletic Injuries injury

As listed by the trial registrant

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

Injury;sports Sports physical therapy

How to take part

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  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

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