Stroboscopic Visual TrainingNCT07308535
EFFECTS OF TRAINING WITH STROBOSCOPIC GLASSES ON ATHLETIC PERFORMANCE IN VOLLEYBALL PLAYERS
A study testing stroboscopic visual training in people with Stroboscopic Visual Training and Physical Fitness, run by Baskent University at 1 site in Turkey (Türkiye).
Trial summary
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). Read more about this study
- Who is it for?
- Ages 18 to 35 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Stroboscopic Visual Training, Physical Fitness
- What is being tested?
- stroboscopic visual training
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 54 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 12 Mar 2025to 24 May 2025
- Phase
- Interventional
- 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 18 to 35 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- 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
Who cannot join
- 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
Trial locations and contacts
1 site in 1 country.
About this study
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.
Read the detailed description
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.
- Conditions
- Stroboscopic Visual Training, Physical Fitness
- Being tested
- stroboscopic visual training
- Keywords
- Volleyball, stroboscopic glasses, athletic performance, physical fitness, visual training
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
stroboscopic visual trainingDevice
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.
| Study group | Role | What they receive |
|---|---|---|
| stroboscopic glasses group | Experimental | 27 volleyball players were evaluated at three times: pre-exercise, after 6 weeks and after 10 weeks regard to reaction time, agility, anaerobic performance, balance and coordination. Experimental group used stroboscopic glasses when doing exercise. Exercise program consisted lunge, jumping and balance exercises. Each exercise consisted 12 repetitions and 3 sets. Stroboscopic glasses were adjusted to 100 ms on/150 ms off flash level 3. This frequency are always preferred scientific research about stroboscopic visual training. Receives: Device: stroboscopic visual training |
| Control group | No intervention | 27 volleyball players only exercised |
What is being measured
The primary outcome is the main question the study is designed to answer.
Reaction time
Human Benchmark Test
Measured: 6 weeks
Agility
T Agility Test
Measured: 6 weeks
Anaerobic Performance
Vertical Jumping
Measured: 6 weeks
Balance
Flamingo Balance Test
Measured: 6 weeks
Coordination
Hexagonal Coordination Test
Measured: 6 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Dec 2025
- Study start12 Mar 2025
- Primary completion11 May 2025
- Study completion24 May 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Stroboscopic Visual TrainingStudies 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- 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
- Masking
- None (open label)
- Enrolment
- 54 participants (actual)
Sponsor and investigators
- Lead sponsor
- Baskent University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Nihan Özünlü PEKYAVAŞ, PROFESSOR, Study director, Baskent University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07308535
- Sponsor's protocol ID
- KA25/182
- Status last verified
- Dec 2025
- First submitted
- 19 Nov 2025
- Last updated
- 29 Dec 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Research evaluated individual athletic performance. Volleyball team manager did not want to share individual performance data.
Publications
Ramirez-Campillo R, Andrade DC, Nikolaidis PT, Moran J, Clemente FM, Chaabene H, Comfort P. Effects of Plyometric Jump Training on Vertical Jump Height of Volleyball Players: A Systematic Review with Meta-Analysis of Randomized-Controlled Trial. J Sports Sci Med. 2020 Aug 13;19(3):489-499. eCollection 2020 Sep.
PubMed 32874101Zwierko T, Tapia V, Vera J, Redondo B, Morenas-Aguilar MD, Garcia-Ramos A. Enhancing reactive agility in soccer: The impact of stroboscopic eyewear during warm-up across fatigued and non-fatigued conditions. Eur J Sport Sci. 2024 Dec;24(12):1798-1808. doi: 10.1002/ejsc.12224. Epub 2024 Nov 22.
PubMed 39578413Ahmadi M, Nobari H, Ramirez-Campillo R, Perez-Gomez J, Ribeiro ALA, Martinez-Rodriguez A. Effects of Plyometric Jump Training in Sand or Rigid Surface on Jump-Related Biomechanical Variables and Physical Fitness in Female Volleyball Players. Int J Environ Res Public Health. 2021 Dec 11;18(24):13093. doi: 10.3390/ijerph182413093.
PubMed 34948702Keoliya AA, Ramteke SU, Boob MA, Somaiya KJ. Enhancing Volleyball Athlete Performance: A Comprehensive Review of Training Interventions and Their Impact on Agility, Explosive Power, and Strength. Cureus. 2024 Jan 31;16(1):e53273. doi: 10.7759/cureus.53273. eCollection 2024 Jan.
PubMed 38435930Mikolajec K, Nowak B, Banys D, Krzysztofik M, Skalski DT, Markiel A, Maszczyk A. Factors determining sports results in elite national volleyball teams between 2004 and 2016. Biol Sport. 2025 Jan;42(1):145-150. doi: 10.5114/biolsport.2025.139085. Epub 2024 Jul 31.
PubMed 39758186
Study at a glance
From the registry record, last updated by the sponsor on 29 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- EFFECTS OF TRAINING WITH STROBOSCOPIC GLASSES ON ATHLETIC PERFORMANCE IN VOLLEYBALL PLAYERS
- ClinicalTrials.gov ID
- NCT07308535
- Acronym / sponsor ID
- KA25/182
- Conditions
- Stroboscopic Visual Training, Physical Fitness
- Keywords
- Volleyball, stroboscopic glasses, athletic performance, physical fitness, visual training
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 54 participants (actual)
- Lead sponsor
- Baskent UniversityUniversity, hospital or other
- Study start
- 12 Mar 2025 (actual)
- Primary completion
- 11 May 2025 (actual)
- Study completion
- 24 May 2025 (actual)
- First posted
- 29 Dec 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.
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.
Detailed description
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.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- 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
| Arm | Type | Receives |
|---|---|---|
| stroboscopic glasses group | Experimental | Device: stroboscopic visual training27 volleyball players were evaluated at three times: pre-exercise, after 6 weeks and after 10 weeks regard to reaction time, agility, anaerobic performance, balance and coordination. Experimental group used stroboscopic glasses when doing exercise. Exercise program consisted lunge, jumping and balance exercises. Each exercise consisted 12 repetitions and 3 sets. Stroboscopic glasses were adjusted to 100 ms on/150 ms off flash level 3. This frequency are always preferred scientific research about stroboscopic visual training. |
| Control group | No intervention | –27 volleyball players only exercised |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (5 listed)
- 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
Key exclusion criteria (5 listed)
- 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
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 |
|---|---|---|
| stroboscopic visual training27 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. | Device | stroboscopic glasses group |
Primary outcome
Reaction time
Time frame: 6 weeks
Human Benchmark Test
Agility
Time frame: 6 weeks
T Agility Test
Anaerobic Performance
Time frame: 6 weeks
Vertical Jumping
Balance
Time frame: 6 weeks
Flamingo Balance Test
Coordination
Time frame: 6 weeks
Hexagonal Coordination 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 29 Dec 2025.
- Results publication: PubMed 32874101Ramirez-Campillo R, Andrade DC, Nikolaidis PT, Moran J, Clemente FM, Chaabene H, Comfort P. Effects of Plyometric Jump Training on Vertical Jump Height of Volleyball Players: A Systematic Review with Meta-Analysis of Randomized-Controlled Trial. J Sports Sci Med. 2020 Aug 13;19(3):489-499. eCollection 2020 Sep.
- Results publication: PubMed 39578413Zwierko T, Tapia V, Vera J, Redondo B, Morenas-Aguilar MD, Garcia-Ramos A. Enhancing reactive agility in soccer: The impact of stroboscopic eyewear during warm-up across fatigued and non-fatigued conditions. Eur J Sport Sci. 2024 Dec;24(12):1798-1808. doi: 10.1002/ejsc.12224. Epub 2024 Nov 22.
- Results publication: PubMed 34948702Ahmadi M, Nobari H, Ramirez-Campillo R, Perez-Gomez J, Ribeiro ALA, Martinez-Rodriguez A. Effects of Plyometric Jump Training in Sand or Rigid Surface on Jump-Related Biomechanical Variables and Physical Fitness in Female Volleyball Players. Int J Environ Res Public Health. 2021 Dec 11;18(24):13093. doi: 10.3390/ijerph182413093.
- Results publication: PubMed 38435930Keoliya AA, Ramteke SU, Boob MA, Somaiya KJ. Enhancing Volleyball Athlete Performance: A Comprehensive Review of Training Interventions and Their Impact on Agility, Explosive Power, and Strength. Cureus. 2024 Jan 31;16(1):e53273. doi: 10.7759/cureus.53273. eCollection 2024 Jan.
- Results publication: PubMed 39758186Mikolajec K, Nowak B, Banys D, Krzysztofik M, Skalski DT, Markiel A, Maszczyk A. Factors determining sports results in elite national volleyball teams between 2004 and 2016. Biol Sport. 2025 Jan;42(1):145-150. doi: 10.5114/biolsport.2025.139085. Epub 2024 Jul 31.
- Individual participant dataSharing planned: No. Research evaluated individual athletic performance. Volleyball team manager did not want to share individual performance data.
Related trials for Stroboscopic Visual Training
Not yet recruiting
The Effects of Visual Input on Cognitive Function, Physical Performance, and Postural Stability in Adolescent Male Basketball Players
Sports Physical Therapy, Stroboscopic Visual Training
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.
Nihan Özünlü PEKYAVAŞ, PROFESSOR study director
Baskent University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing stroboscopic visual training in people with Stroboscopic Visual Training and Physical Fitness, run by Baskent 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 5 inclusion and 5 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 29 Dec 2025. 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?
Reaction time (time frame: 6 weeks). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07308535, which also lists 5 linked publications.
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 29 Dec 2025.