Cognitive OrientationNCT07162545
Effects Of Stroboskobic Visual Training On Cognitive Performance in Adolescent Male Volleyball Players.
An observational study of Cognitive Orientation, run by Kocaeli University at 1 site in Turkey (Türkiye).
Trial summary
Objective: To determine the effects of a stroboscopic training program on cognitive function in adolescent male volleyball players. The study aims to reveal the impact of using stroboscopic glasses during a portion of their training on volleyball players' cognitive functions. Read more about this study
- Who is it for?
- Ages 13 to 18 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Cognitive Orientation
- What is being tested?
- stroboskopic visual training
- How many people
- 34 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 30 Oct 2025to 15 Jan 2026
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 13 to 18 years
- Men only
- Healthy volunteers accepted
- Child, Adult
Study population: Adolescent male volleyball players between the ages of 13-18.
Who may be able to join
- Being an adolescent male volleyball player between the ages of 13-18.
- Having attended volleyball training regularly for at least one year.
- Agreeing to attend training regularly throughout the study period.
- Having signed the voluntary participation form and parental consent form.
- Having no visual or auditory impairments.
- Having completed cognitive function tests during the initial evaluation.
Who cannot join
- Having a history of a disease that could affect neurological, psychiatric, or cognitive functions.
- Individuals whose use of glasses, contact lenses, or eye health prevents them from using stroboscopic glasses.
- Having had a head, neck, or serious lower/upper extremity injury within the last 6 months.
- Regular use of any medication (especially medications that affect attention/cognitive functions).
- Individuals who declared they were unable to comply with the study process or who did not participate in follow-up assessments.
- Individuals who did not comply with the research protocol during testing or whose data were incomplete.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Sakarya University of Applied Sciences Physiotherapy and Rehabilitation Research Center
Sakarya
About this study
Official title: "Effects Of Stroboskobic Visual Training On Cognitive Performance in Adolescent Male Volleyball Players
Objective: To determine the effects of a stroboscopic training program on cognitive function in adolescent male volleyball players. The study aims to reveal the impact of using stroboscopic glasses during a portion of their training on volleyball players' cognitive functions.
The data obtained from the study will be important for improving volleyball training programs and contributing to the sports science literature.
Read the detailed description
Numerous studies have shown that physical activity produces structural and functional changes in the brain that support cognitive functions. Some studies suggest that different types of exercise have different effects on cognition. A growing body of literature suggests that the effects of physical exercise on cognitive function may be related to the type of exercise.
Sports are divided into two groups based on the predictability and consistency of the performance environment: open and closed skill sports. Open skill sports (e.g., volleyball, tennis, soccer, etc.) are externally paced activities performed in a dynamic, unpredictable environment, while closed skill sports (e.g., running, swimming, archery, etc.) are internally paced and performed in a static, predictable environment. A recent study showed that team athletes outperform recreational athletes in sustained attention and processing speed. Volleyball, as a team sport, may further enhance some aspects of cognitive skills.
The purpose of this study was to examine the effects of volleyball training using stroboscopic glasses on cognitive function in adolescent male volleyball players.
Effects of Stroboscopic Visual Training: Humans have a remarkable capacity for learning and adaptation. The disruption of visual information can force individuals to reduce their reliance on online visual feedback. It is believed that practicing in situations where visual input is poor will force individuals to better utilize the limited visual information available. This can train the perceptual and attentional abilities that support basic visuomotor control. Attention is a critical skill in many domains, and even a small increase can have profound effects; a small improvement in motion perception and focused attention is crucial for a competitive athlete or a soldier searching for an enemy combatant. Perceptual information influences many motor tasks and ensures the maintenance of accurate control in changing or uncertain environments. Consequently, changes in the environment will regularly produce variations in task performance.
- Conditions
- Cognitive Orientation
- Being tested
- stroboskopic visual training
- Keywords
- Attention, Cognition, Reaction Time
- Medical subject headings
- Orientation, Spatial
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
stroboskopic visual trainingOther
Players in the study group will wear stroboscopic glasses for 10 minutes a day, two days a week, for eight weeks during their routine training. Evaluations will be repeated at the end of the eight weeks.
| Study group | Role | What they receive |
|---|---|---|
| study | Training Program: Stroboscopic visual training program to be applied 2 days a week, for 8 weeks. Receives: Other: stroboskopic visual training | |
| control | Routine training program |
What is being measured
The primary outcome is the main question the study is designed to answer.
Visual-Spatial Perception
Line Orientation Test
Measured: Eight weeks
Cognitive Functions
Trail Making Test
Measured: Eight weeks
Directing attention
Stroop Test
Measured: Eight weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Sep 2025
- Study start30 Oct 2025
- Primary completion15 Dec 2025
- Study completion15 Jan 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cognitive OrientationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Other
- Enrolment
- 34 participants (actual)
Sponsor and investigators
- Lead sponsor
- Kocaeli University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Oguzhan Bahadir DEMIR, Kocaeli University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07162545
- Sponsor's protocol ID
- Karabuk, 2025/2432
- Status last verified
- Sep 2025
- First submitted
- 24 Aug 2025
- Last updated
- 14 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 14 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- "Effects Of Stroboskobic Visual Training On Cognitive Performance in Adolescent Male Volleyball Players
- ClinicalTrials.gov ID
- NCT07162545
- Acronym / sponsor ID
- Karabuk, 2025/2432
- Conditions
- Cognitive Orientation
- Keywords
- Attention, Cognition, Reaction Time
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 34 participants (actual)
- Lead sponsor
- Kocaeli UniversityUniversity, hospital or other
- Study start
- 30 Oct 2025 (actual)
- Primary completion
- 15 Dec 2025 (actual)
- Study completion
- 15 Jan 2026 (actual)
- First posted
- 9 Sep 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Objective: To determine the effects of a stroboscopic training program on cognitive function in adolescent male volleyball players. The study aims to reveal the impact of using stroboscopic glasses during a portion of their training on volleyball players' cognitive functions.
The data obtained from the study will be important for improving volleyball training programs and contributing to the sports science literature.
Detailed description
Numerous studies have shown that physical activity produces structural and functional changes in the brain that support cognitive functions. Some studies suggest that different types of exercise have different effects on cognition. A growing body of literature suggests that the effects of physical exercise on cognitive function may be related to the type of exercise.
Sports are divided into two groups based on the predictability and consistency of the performance environment: open and closed skill sports. Open skill sports (e.g., volleyball, tennis, soccer, etc.) are externally paced activities performed in a dynamic, unpredictable environment, while closed skill sports (e.g., running, swimming, archery, etc.) are internally paced and performed in a static, predictable environment. A recent study showed that team athletes outperform recreational athletes in sustained attention and processing speed. Volleyball, as a team sport, may further enhance some aspects of cognitive skills.
The purpose of this study was to examine the effects of volleyball training using stroboscopic glasses on cognitive function in adolescent male volleyball players.
Effects of Stroboscopic Visual Training: Humans have a remarkable capacity for learning and adaptation. The disruption of visual information can force individuals to reduce their reliance on online visual feedback. It is believed that practicing in situations where visual input is poor will force individuals to better utilize the limited visual information available. This can train the perceptual and attentional abilities that support basic visuomotor control. Attention is a critical skill in many domains, and even a small increase can have profound effects; a small improvement in motion perception and focused attention is crucial for a competitive athlete or a soldier searching for an enemy combatant. Perceptual information influences many motor tasks and ensures the maintenance of accurate control in changing or uncertain environments. Consequently, changes in the environment will regularly produce variations in task performance.
Study design
- Observational model
- Cohort
- Time perspective
- Other
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| study | – | Other: stroboskopic visual trainingTraining Program: Stroboscopic visual training program to be applied 2 days a week, for 8 weeks. |
| control | – | –Routine training program |
Who may qualify
- Ages
- 13 to 18 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- Adolescent male volleyball players between the ages of 13-18.
Key inclusion criteria (6 listed)
- Being an adolescent male volleyball player between the ages of 13-18.
- Having attended volleyball training regularly for at least one year.
- Agreeing to attend training regularly throughout the study period.
- Having signed the voluntary participation form and parental consent form.
- Having no visual or auditory impairments.
Key exclusion criteria (6 listed)
- Having a history of a disease that could affect neurological, psychiatric, or cognitive functions.
- Individuals whose use of glasses, contact lenses, or eye health prevents them from using stroboscopic glasses.
- Having had a head, neck, or serious lower/upper extremity injury within the last 6 months.
- Regular use of any medication (especially medications that affect attention/cognitive functions).
- Individuals who declared they were unable to comply with the study process or who did not participate in follow-up assessments.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| stroboskopic visual trainingPlayers in the study group will wear stroboscopic glasses for 10 minutes a day, two days a week, for eight weeks during their routine training. Evaluations will be repeated at the end of the eight weeks. | Other | study |
Primary outcome
Visual-Spatial Perception
Time frame: Eight weeks
Line Orientation Test
Cognitive Functions
Time frame: Eight weeks
Trail Making Test
Directing attention
Time frame: Eight weeks
Stroop Test
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Apr 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Cognitive Orientation, run by Kocaeli University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 14 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Visual-Spatial Perception (time frame: Eight weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Apr 2026.