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Completed

NCT Number: NCT07308535

EFFECTS OF TRAINING WITH STROBOSCOPIC GLASSES ON ATHLETIC PERFORMANCE IN VOLLEYBALL PLAYERS

This study was conducted to investigate the effects of training with stroboscopic glasses on athletic performance in volleyball players. 54 male volleyball players participated in the study. Individuals were randomly divided into two groups as experimental group (n=27) and control group (n=27). Passing, reception and blocking exercises were performed paired with stroboscopic glasses in the experimental group and without glasses in the control group for 6 weeks. Measurements were made twice, before the exercise program and at the end of the 6-week exercise program. Reaction time was evaluated with the Human Benchmark test, agility with T agility test, anaerobic power with vertical jump, balance with Flamingo balance test, coordination with Hexagonal coordination test.

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Key information

Age range

18 year–35 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Baskent University

Ankara, 06790, Turkey (Türkiye)

About this study

In the study, individuals were evaluated face to face at the Turkish Volleyball Federation Beştepe Volleyball Hall. The evaluations lasted 30 minutes for each individual. After the sociodemographic information of the individuals in our study was recorded, individuals were divided into two groups as the experimental group and the control group using a computer numbering system. Necessary information and explanations were provided to individuals in the experimental group with Senaptec brand stroboscopic glasses (Beaverton, Oregon USA) before the application. Passing, reception and blocking training was performed with glasses in the stroboscopic glasses group. Training was performed without stroboscopic glasses in the control group. It was performed after the players' warm-up exercises for 3 sessions per week for 6 weeks. Since there was one stroboscopic glass, the evaluations were planned for 2 days, lasting 30 minutes for each individual. Reaction time, agility and anaerobic power were performed on the first day, and coordination and balance were performed on the second day. The evaluations were performed after the warm-up exercises. The evaluations were performed twice, before the training program and at the end of 6 weeks.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

stroboscopic visual training

Device

27 volleyball players were evaluated two times: pre-exercise and after 6 weeks. Reaction time, agility, anaerobic performance, balance and coordination were measured regard to athletic performance. Athletes using stroboscopic glasses perform exercise program. Exercise program consisted of lunge, balance and jumping exercises. Each exercise consisted of 12 repetitions and 3 sets. Stroboscopic glasses were adjusted to 100 ms on/150 ms off flash level 3. This frequency is always preferred in scientific research.

Primary outcomes

  1. Reaction time

    Time frame: 6 weeks

    Human Benchmark Test

  2. Agility

    Time frame: 6 weeks

    T Agility Test

  3. Anaerobic Performance

    Time frame: 6 weeks

    Vertical Jumping

  4. Balance

    Time frame: 6 weeks

    Flamingo Balance Test

  5. Coordination

    Time frame: 6 weeks

    Hexagonal Coordination Test

Sponsors and collaborators

Lead sponsor

Baskent University

Other

Registry information

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Dec 29, 2025
Registry last updated
Dec 29, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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