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Flicker glasses may give volleyball players an edge

NCT ID NCT07308535

Symptom relief Sponsor: Baskent University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether training with stroboscopic glasses—goggles that flicker on and off—can improve athletic performance in volleyball players. Fifty-four male professional players were split into two groups: one trained with the glasses, the other without. After six weeks, researchers measured reaction time, agility, jumping power, balance, and coordination. The goal was to see if this unusual training tool could sharpen skills.

What this could mean

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

Active substance
stroboscopic glasses
What this could lead to
If it works, this could point toward a simple training tool to boost athletic performance in sports.
What could go wrong
This is a small, completed study with only 54 male volleyball players, so results may not apply to other athletes or sports. The improvements might be modest.

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

54 people

The number who actually took part.

Started

Mar 2025

Finished

May 2025

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 35 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 individuals between the ages of 18-35 * Being a professional volleyball player * Not having undergone surgery in the last 6 months * Not having any chronic, systemic or neuromuscular disease * Not having any visual, cognitive or vestibular disorders Exclusion Criteria: * Individuals under the age of 18 and over the age of 35 * Female individuals * Sedentary individuals * Having visual, cognitive or vestibular disorders * Having any chronic, systemic neuromuscular diseases

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As listed by the trial registrant

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

Physical fitness Stroboscopic visual training

Contacts and locations

Locations

  • Baskent University

    Ankara, 06790, Turkey (Türkiye)

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