Effects of the FIFA 11+ Kids Warm-Up Program on Physical Performance in Youth Judo Athletes

March 23, 2026 updated by: Ahmet Mor

Acute Effects of the FIFA 11+ Kids Warm-Up Program on Explosive and Functional Performance in Youth Judo Athletes

The goal of this clinical trial is to learn if the FIFA 11+ Kids warm-up program improves physical performance in young judo athletes. The study includes children aged about 10 to 14 who regularly practice judo.

The main questions it aims to answer are:

Does the FIFA 11+ Kids warm-up improve jumping and strength performance?

Does it improve speed, agility, and movement ability?

Researchers will compare the FIFA 11+ Kids warm-up with a judo-specific warm-up to see which one better prepares young athletes for training. Each participant will perform both warm-up programs on different days.

Participants will:

Perform the FIFA 11+ Kids warm-up and a judo-specific warm-up on separate days

Complete physical performance tests after each warm-up, including jumping, sprinting, strength, and agility tests

This study may help coaches and athletes choose more effective warm-up routines to improve performance and reduce injury risk in youth judo.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Judo is a high-intensity combat sport that requires strength, power, agility, and coordination. In youth athletes, improving these physical abilities is important for both performance and injury prevention. Warm-up routines play a key role in preparing athletes for training and competition by enhancing neuromuscular readiness.

The FIFA 11+ Kids program is a structured warm-up protocol originally developed for injury prevention in youth football players. It includes exercises focusing on balance, coordination, strength, and movement control. Although this program has been shown to improve performance and reduce injury risk in team sports, its effects in combat sports such as judo are not well understood.

The aim of this study is to investigate the acute effects of the FIFA 11+ Kids warm-up program on selected physical performance parameters in youth judo athletes, compared with a traditional judo-specific warm-up.

This study uses a randomized, counterbalanced crossover design. Participants are assigned to perform two different warm-up conditions (FIFA 11+ Kids and judo-specific warm-up) in a random order, with a washout period between sessions. This design allows each participant to serve as their own control.

A total of 16 competitive youth judo athletes aged approximately 10 to 14 years participate in the study. All participants have regular training experience and are actively competing.

After completing each warm-up protocol, participants perform a series of physical performance tests. These tests include measures of explosive power, speed, agility, upper- and lower-body strength, and functional performance.

The results of this study are expected to provide information on whether the FIFA 11+ Kids warm-up program can be used as an effective alternative to traditional warm-up routines in youth judo athletes. This may help coaches and practitioners select evidence-based warm-up strategies to improve performance and reduce injury risk.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
16

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
      • Sinop, Turkey (Türkiye)
        • Sinop University, Faculty of Sport Sciences

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Aged 10-14 years and actively participating in judo
  • At least 1 year of regular judo training
  • Training at least 4-5 days per week
  • Having competition experience at the national or club level

Exclusion Criteria:

  • A serious musculoskeletal injury affecting the limbs within the past 6 months
  • Any orthopedic, neurological, or chronic health condition that could affect test results or performance

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: FIFA 11+ Kids Warm-Up
Participants perform the FIFA 11+ Kids warm-up program before completing physical performance tests. This program includes exercises designed to improve strength, coordination, and movement control.
Behavioral: FIFA 11+ Kids Warm-Up Program
A structured warm-up program designed to improve neuromuscular control, strength, and movement coordination in youth athletes. The program includes running exercises, balance activities, strength exercises, and plyometric drills.
Experimental: Judo-Specific Warm-Up
Participants perform a traditional judo-specific warm-up before completing physical performance tests. This warm-up reflects routine preparation used in judo training.
Behavioral: Judo-Specific Warm-Up
A traditional warm-up routine commonly used in judo training, including sport-specific movements and exercises to prepare athletes for practice.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Vertical Jump Height
Time Frame: Immediately after each warm-up session
Vertical jump height measured to assess lower-body explosive performance following each warm-up condition.
Immediately after each warm-up session

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Ahmet Mor

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 10, 2025

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 25, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 25, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 17, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 17, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 23, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 27, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 23, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • FIFA11JUDO2025

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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