HealthyNCT07650006
AI-Based Hamstring Injury Risk Analysis and Effects of the FUNBALL Program
A study testing FUNBALL Prevention Program in people with Healthy and Healthy Adult Male, run by Yeditepe University at 1 site in Turkey (Türkiye).
Trial summary
This study investigates hamstring injury risk in football players using artificial intelligence-based motion analysis (OpenPose) and evaluates the effects of a targeted exercise intervention (FUNBALL). Read more about this study
- Who is it for?
- Ages 18 to 35 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Healthy, Healthy Adult Male
- What is being tested?
- FUNBALL Prevention Program
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Feb 2026to 25 Apr 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 18 to 35 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- To be a professional football player between the ages of 18-35.
- Not having a history of ligament, joint, bone, muscle or tendon injury that requires at least 2 months away from the field in the last 6 months.
- Not having an active disability.
- To have verbal and written communication skills who accept to participate in the study voluntarily and to perform exercise applications.
Who cannot join
- Presence of an active disability
- Having a history of ligament, joint, bone, muscle or tendon injury that requires at least 2 months away from the field in the last 6 months.
- Vestibular or disconnected vision problems
- History of cancer
- Illiteracy
- Mental and cognitive disorders that may affect communication
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Istanbulspor Ömer Sarıalioglu Football Team Facilitu
Istanbul, Büyükçekmece, 34537
About this study
Official title: AI-Based Hamstring Injury Risk Analysis and the Effects of the FUNBALL Program on Physical Performance and Cognitive Function in Professional Football Players
This study investigates hamstring injury risk in football players using artificial intelligence-based motion analysis (OpenPose) and evaluates the effects of a targeted exercise intervention (FUNBALL). Hamstring risk is assessed during a 30-m sprint using sagittal-plane video analysis, and players classified as medium or high risk receive a four-month FUNBALL program. A pre-post intervention design is employed, with sprint performance, agility, balance, jumping ability, kicking power, and cognitive function assessed using standardized field and cognitive tests.
Read the detailed description
Before the implementation of the FUNBALL program, artificial intelligence (OpenPose) based hamstring risk analysis and 30-meter sprint test, 505 agility and direction change test, modified star balance test, 5-point jump test, maximum shot distance test and cognition tests will be applied as pre-tests (18,19). AI risk analysis will be done by examining video (30 frame rate) captured with a phone camera (iPhone 14 Pro) from the sagittal (side) plane during the 240 m sprint test. The camera will be positioned 15 meters from the level of the middle of the 30-meter sprint test with the help of a tripod. It will follow the participant's run for 30 meters in motion. The football player will be asked to do a 30 m sprint with 3 repetitions and the average of 3 repetitions will be taken as a basis. According to the artificial intelligence risk analysis, the FUNBALL program will be applied to medium and high risk groups for 4 months. At the end of the Middle Program, the same parameters will be re-evaluated. Hamstring risk analysis and speed parameter will be evaluated with 30 meter sprint test, agility parameter 505 with direction change and agility test, cognition parameter with color word stroop test, n-back test and digit span test, balance and proprioception parameter with modified star balance test, jump parameter with 5-point jump test, and power parameter with maximum shot distance test.
- Conditions
- Healthy, Healthy Adult Male
- Being tested
- FUNBALL Prevention Program
- Keywords
- hamstring, football, artificial intelligence, ai-based, FUNBALL, prevention, sports, performance, cognition
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
FUNBALL Prevention ProgramOther
The FUNBALL Prevention Program is an evidence-based injury prevention exercise program described in the literature. The program was developed by Obertinca et al. and has been shown to reduce thigh muscle injury incidence by approximately 38% in football players. In the present study, the FUNBALL program is implemented as a structured training intervention aimed at reducing hamstring injury risk.
| Study group | Role | What they receive |
|---|---|---|
| FUNBALL Intervention Arm | Experimental | Not described Receives: Other: FUNBALL Prevention Program |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants Classified as High Hamstring Injury Risk by OpenPose-Based Biomechanical Analysis
Outcome measure: Number of participants classified as high hamstring injury risk. Assessment tool: OpenPose-based biomechanical motion analysis of a 30-meter sprint. Classification is based on hip flexion angle, knee extension angle, and terminal swing phase mechanics. Unit of measure: Number of participants classified as high risk.
Measured: Baseline (Day 0) and post-intervention (Week 12)
Secondary outcomes (8)
505 COD Agility Test
The 505 Change of Direction (COD) test is a widely used field-based assessment designed to evaluate an athlete's ability to decelerate, rapidly change direction, and re-accelerate over a short distance. The players are going to sprint forward 10 m, perform a 180-degree turn off a designated foot at the 5-m mark, and sprint back as quickly as possible, with total time is going to record using electronic timing gates or a stopwatch.
Measured: Baseline (Day 0) and post-intervention (Week 12)
Number of Players With Elevated Hamstring Injury Risk During Sprint Testing
The primary outcome will be the number of players identified with elevated hamstring injury risk during a 30-m sprint test, assessed using an artificial intelligence-based movement analysis.
Measured: Baseline (Day 0) and post-intervention (Week 12)
N-Back Task Accuracy (%)
Working memory performance assessed using a computerized N-Back task and reported as percentage accuracy (%).
Measured: Baseline (Day 0) and Post-Intervention (Week 12)
Digit Span Total Score
Total number of correctly recalled digits during a computerized Digit Span task.
Measured: Baseline (Day 0) and Post Intervention (Week 12)
Composite Reach Distance in Modified Star Excursion Balance Test
Composite normalized reach distance during the Modified Star Excursion Balance Test.
Measured: Baseline ( Day 0) and Post-Intervention (Week 12)
Horizontal Distance in Multiple Five Bounds Test
Horizontal distance achieved during the Multiple Five Bounds Test assessing horizontal power.
Measured: Baseline (Day 0) and Post-Intervention (Week 12)
Maximal Soccer Ball Kicking Distance
Maximum horizontal distance of a soccer ball following a maximal instep kick.
Measured: Baseline (Day 0) and Post-Intervention (Week 12)
Stroop Reaction Time
Mean reaction time during incongruent trials of a computerized Stroop task.
Measured: Baseline (Day 0) and Week 12
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Jun 2026
- Study start1 Feb 2026
- Primary completion25 Apr 2026
- Study completion25 Apr 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HealthyStudies 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
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Yeditepe University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Elif Tuğçe t Çil Sertöz, Asst. Prof. Dr., Principal investigator, Yeditepe University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07650006
- Sponsor's protocol ID
- Yeditepe U1
- Status last verified
- Jun 2026
- First submitted
- 29 Dec 2025
- Last updated
- 16 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 16 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- AI-Based Hamstring Injury Risk Analysis and the Effects of the FUNBALL Program on Physical Performance and Cognitive Function in Professional Football Players
- ClinicalTrials.gov ID
- NCT07650006
- Acronym / sponsor ID
- Yeditepe U1
- Conditions
- Healthy, Healthy Adult Male
- Keywords
- hamstring, football, artificial intelligence, ai-based, FUNBALL, prevention, sports, performance
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Yeditepe UniversityUniversity, hospital or other
- Study start
- 1 Feb 2026 (actual)
- Primary completion
- 25 Apr 2026 (actual)
- Study completion
- 25 Apr 2026 (actual)
- First posted
- 16 Jun 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.
This study investigates hamstring injury risk in football players using artificial intelligence-based motion analysis (OpenPose) and evaluates the effects of a targeted exercise intervention (FUNBALL). Hamstring risk is assessed during a 30-m sprint using sagittal-plane video analysis, and players classified as medium or high risk receive a four-month FUNBALL program. A pre-post intervention design is employed, with sprint performance, agility, balance, jumping ability, kicking power, and cognitive function assessed using standardized field and cognitive tests.
Detailed description
Before the implementation of the FUNBALL program, artificial intelligence (OpenPose) based hamstring risk analysis and 30-meter sprint test, 505 agility and direction change test, modified star balance test, 5-point jump test, maximum shot distance test and cognition tests will be applied as pre-tests (18,19). AI risk analysis will be done by examining video (30 frame rate) captured with a phone camera (iPhone 14 Pro) from the sagittal (side) plane during the 240 m sprint test. The camera will be positioned 15 meters from the level of the middle of the 30-meter sprint test with the help of a tripod. It will follow the participant's run for 30 meters in motion. The football player will be asked to do a 30 m sprint with 3 repetitions and the average of 3 repetitions will be taken as a basis. According to the artificial intelligence risk analysis, the FUNBALL program will be applied to medium and high risk groups for 4 months. At the end of the Middle Program, the same parameters will be re-evaluated. Hamstring risk analysis and speed parameter will be evaluated with 30 meter sprint test, agility parameter 505 with direction change and agility test, cognition parameter with color word stroop test, n-back test and digit span test, balance and proprioception parameter with modified star balance test, jump parameter with 5-point jump test, and power parameter with maximum shot distance test.
Study design
- Primary purpose
- Prevention
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| FUNBALL Intervention Arm | Experimental | Other: FUNBALL Prevention Program |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- To be a professional football player between the ages of 18-35.
- Not having a history of ligament, joint, bone, muscle or tendon injury that requires at least 2 months away from the field in the last 6 months.
- Not having an active disability.
- To have verbal and written communication skills who accept to participate in the study voluntarily and to perform exercise applications.
Key exclusion criteria (6 listed)
- Presence of an active disability
- Having a history of ligament, joint, bone, muscle or tendon injury that requires at least 2 months away from the field in the last 6 months.
- Vestibular or disconnected vision problems
- History of cancer
- Illiteracy
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 |
|---|---|---|
| FUNBALL Prevention ProgramThe FUNBALL Prevention Program is an evidence-based injury prevention exercise program described in the literature. The program was developed by Obertinca et al. and has been shown to reduce thigh muscle injury incidence by approximately 38% in football players. In the present study, the FUNBALL program is implemented as a structured training intervention aimed at reducing hamstring injury risk. | Other | FUNBALL Intervention Arm |
Primary outcome
Number of Participants Classified as High Hamstring Injury Risk by OpenPose-Based Biomechanical Analysis
Time frame: Baseline (Day 0) and post-intervention (Week 12)
Outcome measure: Number of participants classified as high hamstring injury risk. Assessment tool: OpenPose-based biomechanical motion analysis of a 30-meter sprint. Classification is based on hip flexion angle, knee extension angle, and terminal swing phase mechanics. Unit of measure: Number of participants classified as high risk.
8 secondary outcomes
505 COD Agility Test
Time frame: Baseline (Day 0) and post-intervention (Week 12)
Number of Players With Elevated Hamstring Injury Risk During Sprint Testing
Time frame: Baseline (Day 0) and post-intervention (Week 12)
N-Back Task Accuracy (%)
Time frame: Baseline (Day 0) and Post-Intervention (Week 12)
Digit Span Total Score
Time frame: Baseline (Day 0) and Post Intervention (Week 12)
Composite Reach Distance in Modified Star Excursion Balance Test
Time frame: Baseline ( Day 0) and Post-Intervention (Week 12)
Horizontal Distance in Multiple Five Bounds Test
Time frame: Baseline (Day 0) and Post-Intervention (Week 12)
Maximal Soccer Ball Kicking Distance
Time frame: Baseline (Day 0) and Post-Intervention (Week 12)
Stroop Reaction Time
Time frame: Baseline (Day 0) and Week 12
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 16 Jun 2026.
- Individual participant dataSharing planned: Yes
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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.
Elif Tuğçe t Çil Sertöz, Asst. Prof. Dr. principal investigator
Yeditepe 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 FUNBALL Prevention Program in people with Healthy and Healthy Adult Male, run by Yeditepe 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 4 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 16 Jun 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?
Number of Participants Classified as High Hamstring Injury Risk by OpenPose-Based Biomechanical Analysis (time frame: Baseline (Day 0) and post-intervention (Week 12)). 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 16 Jun 2026.