Effects Of Stroboskobic Visual Training On Cognitive Performance in Adolescent Male Volleyball Players.

NCT ID: NCT07162545

Last Updated: 2025-11-19

Basic Information

• Recruitment Status: RECRUITING
• Total Enrollment: 34 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2025-10-30
• Study Completion Date: 2026-01-15

Brief 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.

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.

Conditions

Cognitive Orientation

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: OTHER

Study Groups

study

Training Program: Stroboscopic visual training program to be applied 2 days a week, for 8 weeks.

stroboskopic visual training

Intervention Type: OTHER

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.

control

Routine training program

No interventions assigned to this group

Interventions

stroboskopic visual training

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.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• 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.

Exclusion Criteria

• 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.

• Minimum Eligible Age: 13 Years
• Maximum Eligible Age: 18 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: Yes

Sponsors

Kocaeli University

OTHER

Sponsor Role: lead

Responsible Party

Oguzhan Bahadir DEMIR

Assist. Prof.

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Sakarya University of Applied Sciences Physiotherapy and Rehabilitation Research Center

Sakarya, , Turkey (Türkiye)

Site Status: RECRUITING

Countries

Turkey (Türkiye)

Central Contacts

Oguzhan Demir, Dr.

Role: CONTACT

oguzhandemir@subu.edu.tr

+905326708459

Facility Contacts

Oguzhan Demir, Dr

Role: primary

Other Identifiers

Karabuk, 2025/2432

Identifier Type: -

Identifier Source: org_study_id