Pre- and Post-Training Assessment of Sprint Performance, Agility, Balance and Body Awareness in Football Players Regarding Hamstring Injury

July 30, 2026 updated by: Ezgi Türkmen, Health Institutes of Turkey
Aim of the study is to examine the impact of a history of hamstring injury on athletes by determining and comparing the pre- and post-training levels of sprint performance, agility, dynamic balance, and body awareness in football players with and without a history of hamstring injury.

Study Overview

Status

Status

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

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.

Detailed Description

The aim of this study is to compare sprint performance (10-meter sprint test (10mST) and 30-meter sprint test (30mST)), agility (T-Test of Agility), dynamic balance (Y-Balance Test), and body awareness (Body Awareness Questionnaire) levels in licensed football players with and without a history of hamstring injury, before and after training, in order to reveal the effect of a history of hamstring injury on functional performance and acute fatigue response. Capturing acute changes with pre- and post-training measurements and comparing these between groups with and without a history of injury has the potential to make visible "intra-day/intra-training performance fluctuations" that may be overlooked upon returning to the field. This research study is designed as an observational and cross-sectional evaluation study.

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.
Observational

Enrollment (Estimated)

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.
50

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

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

  • Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Licensed Football Players Aged 18-35 with and without a History of Hamstring Injury

Description

Inclusion Criteria:

  • Being a licensed male football player aged 18-35.
  • Having played football actively for at least 2 years.
  • Having attended training sessions regularly within the last 6 months.
  • Having a history of hamstring injury (n=25).
  • Not having a history of hamstring injury (n=25).
  • Voluntarily agreeing to participate in the study.

Exclusion Criteria:

  • Having a current history of a diagnosed musculoskeletal injury in the lower extremities.
  • Having undergone lower extremity surgery within the last 6 months.
  • Having a diagnosis of any neurological, orthopedic, or systemic disorder.
  • Having a diagnosis of any systemic disease affecting balance.
  • Having any significant physical limitations that would prevent the application of the tests.
  • Having a diagnosed psychological disorder that would hinder communication.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Group I
Football players with a history of hamstring injury
Group II
Football players without a history of hamstring injury

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
Sprint Performance (10-meter and 30-meter Sprint Tests)
Time Frame: Before and immediately after training
To evaluate the acceleration and maximum sprint performance of the football players, 10-meter and 30-meter sprint tests will be conducted. The 10-meter sprint test will be used to assess acceleration and explosive power capacity over short distances. Participants will stand in a semi-prone position behind the starting line and will begin a 10-meter run at maximum speed upon receiving the starting command. The time will be recorded in seconds. The 30-meter sprint test will be used to evaluate maximum running speed, sprint performance, and anaerobic capacity. Similarly, participants will begin a 30-meter run at maximum speed upon receiving the starting command. The time will be recorded in seconds.
Before and immediately after training
T-Test of Agility
Time Frame: Before and immediately after training
This test will be administered to assess participants' agility, speed of change of direction, coordination, and reaction capacity. The test course is arranged in a 'T' shape using cones, with 10 meters forward from the starting point and 5 meters to the right and left. Participant runs forward from the starting point to the midpoint, then moves sideways to the right and left as quickly but steadily as possible, and finally runs back to the starting point. The test duration is recorded in seconds using a stopwatch. Shorter test times indicate a higher level of agility and neuromuscular control.
Before and immediately after training
Y Balance Test
Time Frame: Before and immediately after training
The YBT requires the athlete to balance on one leg whilst simultaneously reaching as far as possible with the other leg in three separate directions: anterior, posterolateral, and posteromedial. Therefore, this test measures the athlete's strength, stability and balance in various directions. The YBT composite score is calculated by summing the three reach directions and normalising the results to the lower limb length.
Before and immediately after training
Body Awareness Questionnaire (BAQ)
Time Frame: Before and immediately after training
BAQ is an 18-item self-report scale designed to measure how attentive you are to normal, non-emotional internal bodily processes. It evaluates your sensitivity to everyday bodily cycles (like sleep and hunger), ability to detect subtle changes, and capacity to anticipate physical reactions. Typically takes about 3 to 5 minutes. Items are generally rated on a 1 to 7 scale, with higher total scores indicating greater perceived conKdence and accuracy in monitoring your physical state over time.
Before and immediately after training

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.
Health Institutes of Turkey

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.
July 30, 2026

Primary Completion (Estimated)

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.
August 1, 2026

Study Completion (Estimated)

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.
August 1, 2026

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).
July 24, 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.
July 24, 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.
July 30, 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.
July 31, 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.
July 30, 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.
July 1, 2026

More Information

Terms related to this study

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.
  • ETurkmen0226

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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