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Breathing trick could give volleyball players an edge

NCT ID NCT07763002

Symptom relief Sponsor: Gazi University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 13, 2026 · Last updated Aug 14, 2026 · Updated 1 time

Summary

This trial tests whether one session of inspiratory muscle training—using a POWERbreathe device that adds resistance to breathing—can improve exercise capacity, muscle oxygenation, balance, and agility in elite male volleyball players aged 18 to 25. Thirty players will be randomly assigned to either perform 60 resisted breaths during a throwing drill or to a control group that does no training. Both groups will complete tests of walking capacity, balance, and agility before and after the session to see if the breathing exercise makes a difference.

What this could mean

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

Active substance
Functional inspiratory muscle training using a POWERbreathe device, involving 60 resisted breaths at 50% of maximal inspiratory pressure during a sport-specific throwing drill.
What this could lead to
If effective, this simple breathing exercise could offer a quick, drug-free way to boost athletic performance and recovery in volleyball and similar sports.
What could go wrong
This is a small, single-session study in a specific group (young male elite volleyball players), so results may not apply to other athletes or to long-term training. The effects are measured immediately and may not translate to real-game performance.

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.

Started

May 2026

Expected to finish

Jun 2027

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 25 years

Sex

Male participants only

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: * Male, aged 18 to 25 years * Regular participation in volleyball training * University student actively playing on an elite-level volleyball team * Regular training during the previous 3 months * Willing and able to provide written informed consent Exclusion Criteria: * Current smoking or regular alcohol use * Regular use of medication or vitamin supplements * History of upper respiratory tract infection or COVID-19 within the previous 3 months * Lower-extremity or shoulder surgery within the previous 6 months * An acute respiratory or musculoskeletal condition that prevents safe completion of the protocol * Inability to complete the assessment or training procedures

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As listed by the trial registrant

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

Athletic performance

How to take part

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  1. The places running it

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  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

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Contacts and locations

Locations

  • Gazi University Faculty of Health Sciences Department of Cardiopulmonary Physiotherapy and Rehabilitation, Ankara, Çankaya 06490

    RECRUITING

    Ankara, Ankara, 06560, Turkey (Türkiye)

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