Athletic InjuriesNCT07713004
FIFA 11+ Warm-Up and Injury Risk Classification in Youth Amateur Soccer Players
A study testing FIFA 11+ Neuromuscular Warm-Up Program and Routine Warm-Up in people with Athletic Injuries and Soccer Injury, run by Pamukkale University at 1 site in Turkey (Türkiye).
Trial summary
This randomized controlled trial evaluated whether an eight-week, supervised FIFA 11+ neuromuscular warm-up program improves multifactorial injury risk classification, functional performance, and time-loss injury incidence in youth amateur male soccer players aged 15 to 18 years. Read more about this study
- Who is it for?
- Ages 15 to 18 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Athletic Injuries, Soccer Injury, Lower Extremity Injury
- What is being tested?
- FIFA 11+ Neuromuscular Warm-Up Program and Routine Warm-Up
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 44 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 20 Aug 2024to 22 Oct 2024
- 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 15 to 18 years
- Men only
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Male, aged 15 to 18 years
- Minimum of one year of competitive experience in an amateur soccer league
- Actively competing in the Mugla Regional Amateur League at the time of enrolment
- No diagnosed systemic disease
- Written informed consent from a parent or legal guardian and written assent from the participant
Who cannot join
- Pain reported at the time of baseline assessment
- Injury sustained within the six months preceding the study
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Pamukkale University, Sports Sciences and Technology Research and Application Center
Denizli, Pamukkale, 20000
About this study
Official title: Effects of the FIFA 11+ Neuromuscular Warm-Up Program on Move2Perform Injury Risk Classification in Youth Amateur Soccer Players: A Randomized Controlled Trial
This randomized controlled trial evaluated whether an eight-week, supervised FIFA 11+ neuromuscular warm-up program improves multifactorial injury risk classification, functional performance, and time-loss injury incidence in youth amateur male soccer players aged 15 to 18 years.
Forty-four players from a regional amateur league were randomly allocated to either the FIFA 11+ group or a control group that continued its routine pre-training warm-up. Injury risk was classified using the Move2Perform algorithm, which integrates demographic data, injury history, the Functional Movement Screen (FMS), and the Lower Quarter Y-Balance Test (YBT-LQ). Jump performance and isometric lower extremity strength were also assessed at baseline and after eight weeks. Time-loss injuries were recorded prospectively throughout the intervention period.
This study was registered retrospectively.
Read the detailed description
Background. Lower extremity injuries are a major burden in youth soccer. Isolated screening tools such as the Functional Movement Screen (FMS) and the Lower Quarter Y-Balance Test (YBT-LQ) have shown limited standalone predictive accuracy, whereas multifactorial classification frameworks may better identify at-risk athletes. The FIFA 11+ program is an established neuromuscular warm-up shown to reduce injury incidence, but its combined application with multifactorial risk classification has been studied mainly in collegiate and elite cohorts, leaving youth amateur players underrepresented.
Design. Parallel-group, single-blinded randomized controlled trial. Outcome assessments were performed at baseline and after eight weeks. All testing took place on the natural grass field where the athletes regularly trained, under standard training conditions. The study was conducted in accordance with the principles of the Declaration of Helsinki.
Randomization and blinding. After baseline assessment, participants were allocated 1:1 using computer-generated block randomization with a block size of four. The allocation sequence was prepared by an independent researcher not involved in data collection or analysis, and assignments were concealed from the recruiting investigator until after baseline testing. Investigators administering the FMS, YBT-LQ, jump tests, and strength assessments at both time points were blinded to group allocation. Participants and the supervising physiotherapist could not be blinded due to the nature of the intervention. Data were de-identified prior to statistical analysis.
Intervention. The experimental group performed the complete FIFA 11+ program three times per week for eight weeks before regular training, each session lasting approximately 20 minutes, supervised throughout by a certified physiotherapist who monitored technical execution, progressed exercise difficulty when criteria were met, and provided real-time correction to ensure intervention fidelity. The control group continued its routine pre-training warm-up over the same period.
Sample size. An a priori power analysis (G*Power 3.1; F-test, repeated measures within-between interaction) indicated a minimum total sample of 34 participants to detect a moderate effect (f = 0.25) for the Group x Time interaction with alpha = 0.05 and power = 0.80. Forty-four participants were enrolled.
Statistical analysis. A mixed-design (2x2) ANOVA assessed Group x Time interactions. Within-group changes were examined with paired t-tests following confirmation of normality using the Shapiro-Wilk test. Effect sizes were reported as Cohen's d and partial eta-squared. Bonferroni correction was applied to post hoc comparisons. Between-group injury incidence was compared using Fisher's exact test, with relative risk and 95% confidence intervals reported. Significance was set at p < 0.05.
Registration note. This trial was registered retrospectively.
- Being tested
- FIFA 11+ Neuromuscular Warm-Up Program, Routine Warm-Up
- Keywords
- FIFA 11+, Neuromuscular warm-up, Injury prevention, Move2Perform, Functional Movement Screen, Y-Balance Test, Youth soccer, Randomized controlled trial
- Medical subject headings
- Athletic Injuries, Sprains and Strains
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
FIFA 11+ Neuromuscular Warm-Up ProgramOther
The FIFA 11+ program comprises three sequential parts performed as a complete warm-up: (1) an initial running-based warm-up; (2) a central section of strength, plyometric, and balance exercises targeting neuromuscular control and core stability, progressed across three levels of difficulty; and (3) a final part of higher-speed running drills incorporating planting and cutting movements. Performed three times weekly for eight weeks, approximately 20 minutes per session, before regular training. All sessions were supervised by a certified physiotherapist who monitored technical execution, progressed exercise difficulty when criteria were met, and provided real-time correction to ensure intervention fidelity.
Routine Warm-UpOther
The team's usual pre-training warm-up routine, continued unchanged for eight weeks with no additional structured neuromuscular component.
| Study group | Role | What they receive |
|---|---|---|
| FIFA 11+ Group | Experimental | Participants performed the complete FIFA 11+ neuromuscular warm-up program three times per week for eight weeks prior to regular training, each session lasting approximately 20 minutes, under the supervision of a certified physiotherapist. Receives: Other: FIFA 11+ Neuromuscular Warm-Up Program |
| Control Group | Active comparator | Participants continued their routine pre-training warm-up over the same eight-week period, with no additional structured neuromuscular component. Receives: Other: Routine Warm-Up |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Move2Perform Injury Risk Category
Injury risk is assessed using the Move2Perform injury risk classification system (Move2Perform LLC, Evansville, IN, USA). Each participant is assigned to one of four ordinal risk categories: Slight Risk, Moderate Risk, Substantial Risk, or High Risk. The outcome is the change in the assigned risk category from baseline to week 8. A shift toward a lower-risk category indicates improvement. The unit of measure is the ordinal risk category.
Measured: Baseline and immediately after completion of the 8-week intervention
Number of Time-Loss Injuries
The total number of time-loss injury events sustained during training or match play is recorded prospectively. A time-loss injury is defined as any physical complaint that prevents the participant from taking full part in a subsequent training session or match for at least 24 hours. The unit of measure is the number of injuries. Fewer injuries indicate a better outcome.
Measured: From the first intervention session through completion of week 8
Secondary outcomes (7)
Change in Lower Quarter Y-Balance Test Composite Score
Dynamic balance is assessed using the Lower Quarter Y-Balance Test. The composite score is calculated from the maximal anterior, posteromedial, and posterolateral reach distances normalized to limb length and expressed as a percentage. Change is calculated as the week 8 score minus the baseline score. The unit of measure is percentage of limb length (%). Higher positive change values indicate greater improvement in dynamic balance.
Measured: Baseline and immediately after completion of the 8-week intervention
Change in Functional Movement Screen Total Score
Functional movement quality is assessed using the seven-item Functional Movement Screen. Each item is scored from 0 to 3, producing a total score ranging from 0 to 21 points. Change is calculated as the week 8 total score minus the baseline total score. The unit of measure is points. Higher positive change values indicate greater improvement in functional movement quality.
Measured: Baseline and immediately after completion of the 8-week intervention
Change in Three-Consecutive Double-Leg Horizontal Jump Distance
Horizontal jump performance is assessed using three consecutive double-leg horizontal jumps. The total distance covered across the three jumps is recorded in centimeters. Change is calculated as the week 8 distance minus the baseline distance. The unit of measure is centimeters (cm). Higher positive change values indicate greater improvement in jump performance.
Measured: Baseline and immediately after completion of the 8-week intervention
Change in Three-Consecutive Right Single-Leg Horizontal Jump Distance
Right single-leg horizontal jump performance is assessed using three consecutive horizontal jumps performed on the right leg. The total distance covered across the three jumps is recorded in centimeters. Change is calculated as the week 8 distance minus the baseline distance. The unit of measure is centimeters (cm). Higher positive change values indicate greater improvement in right single-leg jump performance.
Measured: Baseline and immediately after completion of the 8-week intervention
Change in Three-Consecutive Left Single-Leg Horizontal Jump Distance
Left single-leg horizontal jump performance is assessed using three consecutive horizontal jumps performed on the left leg. The total distance covered across the three jumps is recorded in centimeters. Change is calculated as the week 8 distance minus the baseline distance. The unit of measure is centimeters (cm). Higher positive change values indicate greater improvement in left single-leg jump performance.
Measured: Baseline and immediately after completion of the 8-week intervention
Change in Isometric Quadriceps Strength
Maximal isometric quadriceps strength is assessed using a Powertrak handheld dynamometer (JTech Medical, Utah, USA). The highest recorded value across the maximal voluntary contraction trials is used for analysis. Change is calculated as the week 8 value minus the baseline value. The unit of measure is newtons (N). Higher positive change values indicate greater improvement in quadriceps strength.
Measured: Baseline and immediately after completion of the 8-week intervention
Change in Isometric Hamstring Strength
Maximal isometric hamstring strength is assessed using a Powertrak handheld dynamometer (JTech Medical, Utah, USA). The highest recorded value across the maximal voluntary contraction trials is used for analysis. Change is calculated as the week 8 value minus the baseline value. The unit of measure is newtons (N). Higher positive change values indicate greater improvement in hamstring strength.
Measured: Baseline and immediately after completion of the 8-week intervention
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jul 2026
- Study start20 Aug 2024
- Primary completion22 Oct 2024
- Study completion22 Oct 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Athletic InjuriesStudies of the same condition, open and under way.
- More trials run by Pamukkale 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
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Two parallel groups: an experimental group performing the FIFA 11+ neuromuscular warm-up program and a control group continuing its routine pre-training warm-up. Outcomes were assessed at baseline and after the eight-week intervention period.
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 44 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pamukkale University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Engin Güneş Atabaş, Pamukkale University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07713004
- Sponsor's protocol ID
- PAU-FIFA11-2024
- Status last verified
- Jul 2026
- First submitted
- 13 Jul 2026
- Last updated
- 20 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Atabas EG, Yapici A, Bagis YE. Effects of the FIFA 11 + neuromuscular warm-up program on Move2Perform injury risk classification in youth amateur soccer players: a randomized controlled trial. BMC Sports Sci Med Rehabil. 2026 Jul 28;18(1):521. doi: 10.1186/s13102-026-01919-y.
PubMed 42928345
Study at a glance
From the registry record, last updated by the sponsor on 20 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of the FIFA 11+ Neuromuscular Warm-Up Program on Move2Perform Injury Risk Classification in Youth Amateur Soccer Players: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07713004
- Acronym / sponsor ID
- PAU-FIFA11-2024
- Keywords
- FIFA 11+, Neuromuscular warm-up, Injury prevention, Move2Perform, Functional Movement Screen, Y-Balance Test, Youth soccer, Randomized controlled trial
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 44 participants (actual)
- Lead sponsor
- Pamukkale UniversityUniversity, hospital or other
- Study start
- 20 Aug 2024 (actual)
- Primary completion
- 22 Oct 2024 (actual)
- Study completion
- 22 Oct 2024 (actual)
- First posted
- 20 Jul 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 randomized controlled trial evaluated whether an eight-week, supervised FIFA 11+ neuromuscular warm-up program improves multifactorial injury risk classification, functional performance, and time-loss injury incidence in youth amateur male soccer players aged 15 to 18 years.
Forty-four players from a regional amateur league were randomly allocated to either the FIFA 11+ group or a control group that continued its routine pre-training warm-up. Injury risk was classified using the Move2Perform algorithm, which integrates demographic data, injury history, the Functional Movement Screen (FMS), and the Lower Quarter Y-Balance Test (YBT-LQ). Jump performance and isometric lower extremity strength were also assessed at baseline and after eight weeks. Time-loss injuries were recorded prospectively throughout the intervention period.
This study was registered retrospectively.
Detailed description
Background. Lower extremity injuries are a major burden in youth soccer. Isolated screening tools such as the Functional Movement Screen (FMS) and the Lower Quarter Y-Balance Test (YBT-LQ) have shown limited standalone predictive accuracy, whereas multifactorial classification frameworks may better identify at-risk athletes. The FIFA 11+ program is an established neuromuscular warm-up shown to reduce injury incidence, but its combined application with multifactorial risk classification has been studied mainly in collegiate and elite cohorts, leaving youth amateur players underrepresented.
Design. Parallel-group, single-blinded randomized controlled trial. Outcome assessments were performed at baseline and after eight weeks. All testing took place on the natural grass field where the athletes regularly trained, under standard training conditions. The study was conducted in accordance with the principles of the Declaration of Helsinki.
Randomization and blinding. After baseline assessment, participants were allocated 1:1 using computer-generated block randomization with a block size of four. The allocation sequence was prepared by an independent researcher not involved in data collection or analysis, and assignments were concealed from the recruiting investigator until after baseline testing. Investigators administering the FMS, YBT-LQ, jump tests, and strength assessments at both time points were blinded to group allocation. Participants and the supervising physiotherapist could not be blinded due to the nature of the intervention. Data were de-identified prior to statistical analysis.
Intervention. The experimental group performed the complete FIFA 11+ program three times per week for eight weeks before regular training, each session lasting approximately 20 minutes, supervised throughout by a certified physiotherapist who monitored technical execution, progressed exercise difficulty when criteria were met, and provided real-time correction to ensure intervention fidelity. The control group continued its routine pre-training warm-up over the same period.
Sample size. An a priori power analysis (G*Power 3.1; F-test, repeated measures within-between interaction) indicated a minimum total sample of 34 participants to detect a moderate effect (f = 0.25) for the Group x Time interaction with alpha = 0.05 and power = 0.80. Forty-four participants were enrolled.
Statistical analysis. A mixed-design (2x2) ANOVA assessed Group x Time interactions. Within-group changes were examined with paired t-tests following confirmation of normality using the Shapiro-Wilk test. Effect sizes were reported as Cohen's d and partial eta-squared. Bonferroni correction was applied to post hoc comparisons. Between-group injury incidence was compared using Fisher's exact test, with relative risk and 95% confidence intervals reported. Significance was set at p < 0.05.
Registration note. This trial was registered retrospectively.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
- Model description
- Two parallel groups: an experimental group performing the FIFA 11+ neuromuscular warm-up program and a control group continuing its routine pre-training warm-up. Outcomes were assessed at baseline and after the eight-week intervention period.
| Arm | Type | Receives |
|---|---|---|
| FIFA 11+ Group | Experimental | Other: FIFA 11+ Neuromuscular Warm-Up ProgramParticipants performed the complete FIFA 11+ neuromuscular warm-up program three times per week for eight weeks prior to regular training, each session lasting approximately 20 minutes, under the supervision of a certified physiotherapist. |
| Control Group | Active comparator | Other: Routine Warm-UpParticipants continued their routine pre-training warm-up over the same eight-week period, with no additional structured neuromuscular component. |
Who may qualify
- Ages
- 15 to 18 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (5 listed)
- Male, aged 15 to 18 years
- Minimum of one year of competitive experience in an amateur soccer league
- Actively competing in the Mugla Regional Amateur League at the time of enrolment
- No diagnosed systemic disease
- Written informed consent from a parent or legal guardian and written assent from the participant
Key exclusion criteria (2 listed)
- Pain reported at the time of baseline assessment
- Injury sustained within the six months preceding the study
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 |
|---|---|---|
| FIFA 11+ Neuromuscular Warm-Up ProgramThe FIFA 11+ program comprises three sequential parts performed as a complete warm-up: (1) an initial running-based warm-up; (2) a central section of strength, plyometric, and balance exercises targeting neuromuscular control and core stability, progressed across three levels of difficulty; and (3) a final part of higher-speed running drills incorporating planting and cutting movements. Performed three times weekly for eight weeks, approximately 20 minutes per session, before regular training. All sessions were supervised by a certified physiotherapist who monitored technical execution, progressed exercise difficulty when criteria were met, and provided real-time correction to ensure intervention fidelity. | Other | FIFA 11+ Group |
| Routine Warm-UpThe team's usual pre-training warm-up routine, continued unchanged for eight weeks with no additional structured neuromuscular component. | Other | Control Group |
Primary outcome
Change in Move2Perform Injury Risk Category
Time frame: Baseline and immediately after completion of the 8-week intervention
Injury risk is assessed using the Move2Perform injury risk classification system (Move2Perform LLC, Evansville, IN, USA). Each participant is assigned to one of four ordinal risk categories: Slight Risk, Moderate Risk, Substantial Risk, or High Risk. The outcome is the change in the assigned risk category from baseline to week 8. A shift toward a lower-risk category indicates improvement. The unit of measure is the ordinal risk category.
Number of Time-Loss Injuries
Time frame: From the first intervention session through completion of week 8
The total number of time-loss injury events sustained during training or match play is recorded prospectively. A time-loss injury is defined as any physical complaint that prevents the participant from taking full part in a subsequent training session or match for at least 24 hours. The unit of measure is the number of injuries. Fewer injuries indicate a better outcome.
7 secondary outcomes
Change in Lower Quarter Y-Balance Test Composite Score
Time frame: Baseline and immediately after completion of the 8-week intervention
Change in Functional Movement Screen Total Score
Time frame: Baseline and immediately after completion of the 8-week intervention
Change in Three-Consecutive Double-Leg Horizontal Jump Distance
Time frame: Baseline and immediately after completion of the 8-week intervention
Change in Three-Consecutive Right Single-Leg Horizontal Jump Distance
Time frame: Baseline and immediately after completion of the 8-week intervention
Change in Three-Consecutive Left Single-Leg Horizontal Jump Distance
Time frame: Baseline and immediately after completion of the 8-week intervention
Change in Isometric Quadriceps Strength
Time frame: Baseline and immediately after completion of the 8-week intervention
Change in Isometric Hamstring Strength
Time frame: Baseline and immediately after completion of the 8-week intervention
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 20 Jul 2026.
- Derived from this study: PubMed 42928345Atabas EG, Yapici A, Bagis YE. Effects of the FIFA 11 + neuromuscular warm-up program on Move2Perform injury risk classification in youth amateur soccer players: a randomized controlled trial. BMC Sports Sci Med Rehabil. 2026 Jul 28;18(1):521. doi: 10.1186/s13102-026-01919-y.
- Individual participant dataSharing planned: No
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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.
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 FIFA 11+ Neuromuscular Warm-Up Program and Routine Warm-Up in people with Athletic Injuries and Soccer Injury, run by Pamukkale 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 2 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 20 Jul 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?
Change in Move2Perform Injury Risk Category (time frame: Baseline and immediately after completion of the 8-week intervention). 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?
On the ClinicalTrials.gov record for NCT07713004, which also lists 1 linked publication.
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 20 Jul 2026.