Stroboscopic Visual TrainingNCT07409155
Effects of a SVT on Agility and Reactive Agility in Adolescent Male Basketball Players
A study testing Neuromuscular exercise training with stroboscopic glassess in people with Stroboscopic Visual Training, run by Hacettepe University at 1 site in Turkey (Türkiye).
Trial summary
The aim of this pilot study was to investigate the effects of a stroboscopic training intervention on reactive agility and agility speed in basketball players, using identical movement patterns, and to evaluate perceptual-cognitive indices derived from the relationship between agility and reactive agility performance. Read more about this study
- Who is it for?
- Ages 14 to 18 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Stroboscopic Visual Training
- What is being tested?
- Neuromuscular exercise training with stroboscopic glassess
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 10 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Nov 2025to 30 Jan 2026
- 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 14 to 18 years
- Men only
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Male basketball players aged 14-18 years who had at least one year of basketball experience and trained a minimum of two days per week.
Who cannot join
- Athletes who did not consent to participate in the study; those with a history of upper or lower extremity surgery within the past year; those who had sustained any musculoskeletal injury to the upper or lower extremities within the last month; and individuals with a history of neurological disorders, epilepsy, or a diagnosis of attention-deficit/hyperactivity disorder (ADHD).
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Birgul Dingirdan Gultekinler
Sakarya, Yeni Mahalle, 54400
About this study
Official title: Effects of a Six-Week Stroboscopic Training Program on Agility and Reactive Agility in Adolescent Male Basketball Players: A Pilot Study
The aim of this pilot study was to investigate the effects of a stroboscopic training intervention on reactive agility and agility speed in basketball players, using identical movement patterns, and to evaluate perceptual-cognitive indices derived from the relationship between agility and reactive agility performance. This study hypothesized that stroboscopic visual training would significantly improve reactive agility and agility performance in adolescent male basketball players.
Read the detailed description
The aim of this pilot study was to investigate the effects of a stroboscopic training intervention on reactive agility and agility speed in basketball players, using identical movement patterns, and to evaluate perceptual-cognitive indices derived from the relationship between agility and reactive agility performance. This study hypothesized that stroboscopic visual training would significantly improve reactive agility and agility performance in adolescent male basketball players. This study was designed as a single-blind randomized controlled trial, with the statistician blinded during the data analysis. This study was conducted at Kocaeli İzmitspor and Bulls Basketball Sports Clubs. As the study population consisted of adolescent athletes, written informed consent was obtained from their parents or legal guardians. Prior to data collection, all participants were informed about the purpose and procedures of the study, the voluntary nature of participation, and their right to withdraw at any time without any consequences. Confidentiality and anonymity of the participants were assured, and it was stated that all data would be used exclusively for scientific purposes. Inclusion criteria: Male basketball players aged 14-18 years who had at least one year of basketball experience and trained a minimum of two days per week.
Exclusion criteria: Athletes who did not consent to participate in the study; those with a history of upper or lower extremity surgery within the past year; those who had sustained any musculoskeletal injury to the upper or lower extremities within the last month; and individuals with a history of neurological disorders, epilepsy, or a diagnosis of attention-deficit/hyperactivity disorder (ADHD).
Participants were randomly allocated to either the stroboscopic visual exercise group (SVT, n = 5) or the control group (CON, n = 5) using a computer-generated randomization list. The SVT group performed basketball-specific neuromuscular warm-up exercises combined with stroboscopic glasses (Senaptec Strobe, Beaverton, ABD) at a duty cycle of 100 ms clear/150 ms opaque twice per week, whereas the CON group completed the identical neuromuscular warm-up exercise protocol under normal visual conditions without visual perturbation.
- Conditions
- Stroboscopic Visual Training
- Being tested
- Neuromuscular exercise training with stroboscopic glassess, Control group
- Keywords
- reactive agility, stroboscopic visual training, agility, cognitive load
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Neuromuscular exercise training with stroboscopic glassessOther
The SVT group performed basketball-specific neuromuscular warm-up exercises combined with stroboscopic glasses (Senaptec Strobe, Beaverton, ABD) at a duty cycle of 100 ms clear/150 ms opaque twice per week, whereas the control group completed the identical neuromuscular warm-up exercise protocol under normal visual conditions without visual perturbation. Specifically, stroboscopic eyewear alternates between transparent and opaque phases at adjustable frequencies, thereby restricting the amount and continuity of visual information available to the athlete. This controlled visual disruption is thought to activate neural networks involved in visual and cognitive processing, compelling athletes to perceive, decide, and respond under conditions of reduced or intermittent visual input.
Control groupOther
Also called Neuromuscular exercise training with normal visual conditions
The control group completed the identical neuromuscular warm-up exercise protocol under normal visual conditions without visual perturbation.
| Study group | Role | What they receive |
|---|---|---|
| Stroboscopic visual training group (SVT) | Experimental | The SVT group performed basketball-specific neuromuscular warm-up exercises combined with stroboscopic glasses (Senaptec Strobe, Beaverton, ABD) at a duty cycle of 100 ms clear/150 ms opaque twice per week. Specifically, stroboscopic eyewear alternates between transparent and opaque phases at adjustable frequencies, thereby restricting the amount and continuity of visual information available to the athlete. This controlled visual disruption is thought to activate neural networks involved in visual and cognitive processing, compelling athletes to perceive, decide, and respond under conditions of reduced or intermittent visual input. Receives: Other: Neuromuscular exercise training with stroboscopic glassess |
| Control group | Other | Control group completed the identical neuromuscular warm-up exercise protocol under normal visual conditions without visual perturbation. Receives: Other: Control group |
What is being measured
The primary outcome is the main question the study is designed to answer.
Reactive agility
Reactive agility performance was assessed using the Y-shaped agility test. The Y-shaped agility test was administered using a Witty photocell gate. The 45° angle between the midpoint of the trigger gate and the midpoints of the target gates was determined using a goniometer, and the photoelectric cells were positioned on the inner sides of the gates. Participants began the test 30 cm behind the start line and sprinted maximally through the first two gates. Immediately after completing the 5-m linear sprint by passing through the first two gates, a visual stimulus appeared on the computer screen positioned in front of the athletes. When the letter "A" was displayed, the athletes were instructed to sprint toward the cone labeled A, whereas when the letter "B" appeared, they were required to sprint toward the cone labeled B as quickly as possible. The fastest time obtained from the three trials was used for the statistical analysis.
Measured: Before the exercise program, after the exercise program and 4 weeks after
Agility
Agility performance was also assessed using the Y-shaped agility test. Prior to each trial, the athletes were informed of the direction of the turn. They were instructed to perform the change-of-direction task, which involved an approximately 45° directional change, as quickly as possible. In addition, athletes were instructed not to initiate the change of direction before passing through the trigger gate. Three trials were completed for each direction (left and right), and the fastest trial for each direction was included in the analysis.
Measured: Before the exercise program, after the exercise program and 4 weeks after
Secondary outcomes (1)
REAC-INDEX
The REAC-INDEX, calculated as the difference between reactive agility and agility speed, was used as an indirect indicator (proxy) of perceptual-cognitive load during reactive agility performance.
REAC- INDEX (ms)= RA (ms)- A (ms)
Measured: Before the exercise program, after the exercise program and 4 weeks after
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Feb 2026
- Study start1 Nov 2025
- Primary completion10 Jan 2026
- Study completion30 Jan 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Stroboscopic Visual TrainingStudies of the same condition, open and under way.
- More trials run by Hacettepe UniversityThe sponsor's other registered studies.
- 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- This study was designed as a single-blind randomized controlled trial, with the statistician blinded during the data analysis.
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 10 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hacettepe University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Birgül Dıngırdan, Hacettepe University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07409155
- Sponsor's protocol ID
- SUBU 4
- Other IDs
- 29.12.2025/ 2025.12.20
- Status last verified
- Feb 2026
- First submitted
- 2 Feb 2026
- Last updated
- 13 Feb 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of a Six-Week Stroboscopic Training Program on Agility and Reactive Agility in Adolescent Male Basketball Players: A Pilot Study
- ClinicalTrials.gov ID
- NCT07409155
- Acronym / sponsor ID
- SUBU 4
- Conditions
- Stroboscopic Visual Training
- Keywords
- reactive agility, stroboscopic visual training, agility, cognitive load
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 10 participants (actual)
- Lead sponsor
- Hacettepe UniversityUniversity, hospital or other
- Study start
- 1 Nov 2025 (actual)
- Primary completion
- 10 Jan 2026 (actual)
- Study completion
- 30 Jan 2026 (actual)
- First posted
- 13 Feb 2026 (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.
The aim of this pilot study was to investigate the effects of a stroboscopic training intervention on reactive agility and agility speed in basketball players, using identical movement patterns, and to evaluate perceptual-cognitive indices derived from the relationship between agility and reactive agility performance. This study hypothesized that stroboscopic visual training would significantly improve reactive agility and agility performance in adolescent male basketball players.
Detailed description
The aim of this pilot study was to investigate the effects of a stroboscopic training intervention on reactive agility and agility speed in basketball players, using identical movement patterns, and to evaluate perceptual-cognitive indices derived from the relationship between agility and reactive agility performance. This study hypothesized that stroboscopic visual training would significantly improve reactive agility and agility performance in adolescent male basketball players. This study was designed as a single-blind randomized controlled trial, with the statistician blinded during the data analysis. This study was conducted at Kocaeli İzmitspor and Bulls Basketball Sports Clubs. As the study population consisted of adolescent athletes, written informed consent was obtained from their parents or legal guardians. Prior to data collection, all participants were informed about the purpose and procedures of the study, the voluntary nature of participation, and their right to withdraw at any time without any consequences. Confidentiality and anonymity of the participants were assured, and it was stated that all data would be used exclusively for scientific purposes. Inclusion criteria: Male basketball players aged 14-18 years who had at least one year of basketball experience and trained a minimum of two days per week.
Exclusion criteria: Athletes who did not consent to participate in the study; those with a history of upper or lower extremity surgery within the past year; those who had sustained any musculoskeletal injury to the upper or lower extremities within the last month; and individuals with a history of neurological disorders, epilepsy, or a diagnosis of attention-deficit/hyperactivity disorder (ADHD).
Participants were randomly allocated to either the stroboscopic visual exercise group (SVT, n = 5) or the control group (CON, n = 5) using a computer-generated randomization list. The SVT group performed basketball-specific neuromuscular warm-up exercises combined with stroboscopic glasses (Senaptec Strobe, Beaverton, ABD) at a duty cycle of 100 ms clear/150 ms opaque twice per week, whereas the CON group completed the identical neuromuscular warm-up exercise protocol under normal visual conditions without visual perturbation.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
- Model description
- This study was designed as a single-blind randomized controlled trial, with the statistician blinded during the data analysis.
| Arm | Type | Receives |
|---|---|---|
| Stroboscopic visual training group (SVT) | Experimental | Other: Neuromuscular exercise training with stroboscopic glassessThe SVT group performed basketball-specific neuromuscular warm-up exercises combined with stroboscopic glasses (Senaptec Strobe, Beaverton, ABD) at a duty cycle of 100 ms clear/150 ms opaque twice per week. Specifically, stroboscopic eyewear alternates between transparent and opaque phases at adjustable frequencies, thereby restricting the amount and continuity of visual information available to the athlete. This controlled visual disruption is thought to activate neural networks involved in visual and cognitive processing, compelling athletes to perceive, decide, and respond under conditions of reduced or intermittent visual input. |
| Control group | Other | Other: Control groupControl group completed the identical neuromuscular warm-up exercise protocol under normal visual conditions without visual perturbation. |
Who may qualify
- Ages
- 14 to 18 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (1 listed)
- Male basketball players aged 14-18 years who had at least one year of basketball experience and trained a minimum of two days per week.
Key exclusion criteria (1 listed)
- Athletes who did not consent to participate in the study; those with a history of upper or lower extremity surgery within the past year; those who had sustained any musculoskeletal injury to the upper or lower extremities within the last month; and individuals with a history of neurological disorders, epilepsy, or a diagnosis of attention-deficit/hyperactivity disorder (ADHD).
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 |
|---|---|---|
| Neuromuscular exercise training with stroboscopic glassessThe SVT group performed basketball-specific neuromuscular warm-up exercises combined with stroboscopic glasses (Senaptec Strobe, Beaverton, ABD) at a duty cycle of 100 ms clear/150 ms opaque twice per week, whereas the control group completed the identical neuromuscular warm-up exercise protocol under normal visual conditions without visual perturbation. Specifically, stroboscopic eyewear alternates between transparent and opaque phases at adjustable frequencies, thereby restricting the amount and continuity of visual information available to the athlete. This controlled visual disruption is thought to activate neural networks involved in visual and cognitive processing, compelling athletes to perceive, decide, and respond under conditions of reduced or intermittent visual input. | Other | Stroboscopic visual training group (SVT) |
| Control groupAlso: Neuromuscular exercise training with normal visual conditionsThe control group completed the identical neuromuscular warm-up exercise protocol under normal visual conditions without visual perturbation. | Other | Control group |
Primary outcome
Reactive agility
Time frame: Before the exercise program, after the exercise program and 4 weeks after
Reactive agility performance was assessed using the Y-shaped agility test. The Y-shaped agility test was administered using a Witty photocell gate. The 45° angle between the midpoint of the trigger gate and the midpoints of the target gates was determined using a goniometer, and the photoelectric cells were positioned on the inner sides of the gates. Participants began the test 30 cm behind the start line and sprinted maximally through the first two gates. Immediately after completing the 5-m linear sprint by passing through the first two gates, a visual stimulus appeared on the computer screen positioned in front of the athletes. When the letter "A" was displayed, the athletes were instructed to sprint toward the cone labeled A, whereas when the letter "B" appeared, they were required to sprint toward the cone labeled B as quickly as possible. The fastest time obtained from the three trials was used for the statistical analysis.
Agility
Time frame: Before the exercise program, after the exercise program and 4 weeks after
Agility performance was also assessed using the Y-shaped agility test. Prior to each trial, the athletes were informed of the direction of the turn. They were instructed to perform the change-of-direction task, which involved an approximately 45° directional change, as quickly as possible. In addition, athletes were instructed not to initiate the change of direction before passing through the trigger gate. Three trials were completed for each direction (left and right), and the fastest trial for each direction was included in the analysis.
1 secondary outcome
REAC-INDEX
Time frame: Before the exercise program, after the exercise program and 4 weeks after
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 13 Feb 2026.
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.
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?
A study testing Neuromuscular exercise training with stroboscopic glassess in people with Stroboscopic Visual Training, run by Hacettepe 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 1 inclusion and 1 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 13 Feb 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?
Reactive agility (time frame: Before the exercise program, after the exercise program and 4 weeks after). The study lists 2 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 13 Feb 2026.