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Flicker glasses give teen volleyball players a secret edge in body control

NCT ID NCT07542457

Knowledge-focused Sponsor: Hacettepe 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether wearing stroboscopic glasses (glasses that flicker on and off) during training could improve balance and body awareness in 30 teenage male volleyball players. For six weeks, one group wore the glasses for short periods during practice, while the other group trained normally. The results showed that both groups improved their balance, but the group using the glasses had better gains in body awareness (knowing where their limbs are without looking). This suggests that stroboscopic training might be a useful tool for fine-tuning athletic skills.

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

30 people

The number who actually took part.

Started

Jun 2025

Finished

Aug 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

12 to 18 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: * To have been a licensed volleyball player for at least one year. * To participate in a regular training program at least twice per week. Exclusion Criteria: * A history of epilepsy, migraine, or photosensitive reactions. * To have undergone a surgical procedure involving the upper or lower extremity within the past year. * To have an acute injury that would prevent compliance with the tests.

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As listed by the trial registrant

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

Balance Proprioception Stroboscopic visual training Volleyball

Contacts and locations

Locations

  • Sakarya Uygulamalı Bilimler Üniversitesi

    Adapazarı, Sakarya, 54400, Turkey (Türkiye)

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