FootballNCT07450937
Cervical Strength, Proprioception and Performance in Adolescent Soccer
An observational study of Football, run by Ondokuz Mayıs University at 1 site in Turkey (Türkiye).
Trial summary
This study aimed to investigate the relationship between cervical muscle strength, proprioceptive sense, and sportive performance in adolescent soccer players. Read more about this study
- Who is it for?
- Ages 12 to 17 yearsHealthy volunteers can take part
- Conditions the study is for
- Football
- What is being tested?
- Observational Assessment
- How many people
- 45 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 May 2024to 1 Jul 2025
- Phase
- Observational
- 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 12 to 17 years
- All sexes
- Healthy volunteers accepted
- Child
Study population: 45 adolescent football players
Who may be able to join
- Aged between 10 and 19 years, who had a regularly renewed football license, had been playing football professionally for at least one year, and were able to complete the assessment protocols
Who cannot join
- Any orthopedic, neurological, rheumatologic, or cardiovascular disorders, or those who had undergone surgical intervention within the previous year
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Ondokuz Mayıs University
Samsun, Samsun, 55139
About this study
Official title: The Relationship Between Cervical Muscle Strength, Proprioceptive Sensation and Athletic Performance in Adolescent Soccer Players
This study aimed to investigate the relationship between cervical muscle strength, proprioceptive sense, and sportive performance in adolescent soccer players.
- Conditions
- Football
- Being tested
- Observational Assessment
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Observational AssessmentOther
Demographic data; cervical muscle strength assesment with a digital hand dynamometer,; deep cervical flexor strength assesment with a biofeedback device; cervical proprioception assesment joint position sense error test; Sportive performance assesment sit-to-stand, vertical jump, 20-m sprint, 30-second push-up, 30-second sit-up, Biering-Sorensen, flamingo balance, and Burpee tests.
What is being measured
The primary outcome is the main question the study is designed to answer.
Cervical extension strength
Cervical extension muscle strength will be assessed using a digital hand-held dynamometer (e.g., MicroFET2 or equivalent). Isometric cervical extension strength will be measured in a standardized seated position with the dynamometer placed on the occipital region. Participants will be instructed to perform a maximal voluntary isometric contraction against resistance for 5 seconds.
Three trials will be recorded, and the highest value (in Newton, N) will be used for analysis. The outcome will be expressed as peak force (N).
Measured: baseline a year
Cervical flexion strength
Cervical flexion muscle strength will be assessed using a digital hand-held dynamometer (e.g., MicroFET2 or equivalent). Isometric cervical flexion strength will be measured in a standardized supine position with the head in neutral alignment. The dynamometer will be placed on the frontal bone region. Participants will be instructed to perform a maximal voluntary isometric contraction against resistance for 5 seconds.
Three trials will be performed, and the highest value will be recorded for analysis. The outcome will be expressed as peak isometric force in Newtons (N).
Measured: baseline a year
Proprioception analysis
Cervical proprioception was assessed using a laser pointer system (Motion Guidance Clinic Kit, Motion Guidance LLC, Denver, CO, USA). The laser device was mounted on the participant's head, and participants were seated comfortably at a distance of 90 cm from the target. With the participant's eyes closed, the examiner positioned the head in the starting position and asked the participant to memorize this position. Participants then performed maximal right and left cervical rotation and returned to the starting position without guidance, verbally confirming when they perceived proper realignment. Each movement was repeated three times. The distance between the final position of the laser beam and the center of the target was measured, and the arithmetic mean of the three trials was recorded as the deviation distance (cm). To calculate the deviation angle, the arctangent formula (deviation distance / distance between the laser and the target) was used.
Measured: baseline a year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Mar 2026
- Study start1 May 2024
- Primary completion1 May 2025
- Study completion1 Jul 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for FootballStudies 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
- Observational
- Observational model
- Cohort
- Time perspective
- Retrospective
- Enrolment
- 45 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ondokuz Mayıs University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Deniz Çakır, Ondokuz Mayıs University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07450937
- Sponsor's protocol ID
- 2024/421
- Status last verified
- Feb 2026
- First submitted
- 27 Feb 2026
- Last updated
- 5 Mar 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 5 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Relationship Between Cervical Muscle Strength, Proprioceptive Sensation and Athletic Performance in Adolescent Soccer Players
- ClinicalTrials.gov ID
- NCT07450937
- Acronym / sponsor ID
- 2024/421
- Conditions
- Football
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 45 participants (actual)
- Lead sponsor
- Ondokuz Mayıs UniversityUniversity, hospital or other
- Study start
- 1 May 2024 (actual)
- Primary completion
- 1 May 2025 (actual)
- Study completion
- 1 Jul 2025 (actual)
- First posted
- 5 Mar 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 aimed to investigate the relationship between cervical muscle strength, proprioceptive sense, and sportive performance in adolescent soccer players.
Study design
- Observational model
- Cohort
- Time perspective
- Retrospective
Who may qualify
- Ages
- 12 to 17 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
- Study population
- 45 adolescent football players
Key inclusion criteria (1 listed)
- Aged between 10 and 19 years, who had a regularly renewed football license, had been playing football professionally for at least one year, and were able to complete the assessment protocols
Key exclusion criteria (1 listed)
- Any orthopedic, neurological, rheumatologic, or cardiovascular disorders, or those who had undergone surgical intervention within the previous year
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 |
|---|---|---|
| Observational AssessmentDemographic data; cervical muscle strength assesment with a digital hand dynamometer,; deep cervical flexor strength assesment with a biofeedback device; cervical proprioception assesment joint position sense error test; Sportive performance assesment sit-to-stand, vertical jump, 20-m sprint, 30-second push-up, 30-second sit-up, Biering-Sorensen, flamingo balance, and Burpee tests. | Other | – |
Primary outcome
Cervical extension strength
Time frame: baseline a year
Cervical extension muscle strength will be assessed using a digital hand-held dynamometer (e.g., MicroFET2 or equivalent). Isometric cervical extension strength will be measured in a standardized seated position with the dynamometer placed on the occipital region. Participants will be instructed to perform a maximal voluntary isometric contraction against resistance for 5 seconds. Three trials will be recorded, and the highest value (in Newton, N) will be used for analysis. The outcome will be expressed as peak force (N).
Cervical flexion strength
Time frame: baseline a year
Cervical flexion muscle strength will be assessed using a digital hand-held dynamometer (e.g., MicroFET2 or equivalent). Isometric cervical flexion strength will be measured in a standardized supine position with the head in neutral alignment. The dynamometer will be placed on the frontal bone region. Participants will be instructed to perform a maximal voluntary isometric contraction against resistance for 5 seconds. Three trials will be performed, and the highest value will be recorded for analysis. The outcome will be expressed as peak isometric force in Newtons (N).
Proprioception analysis
Time frame: baseline a year
Cervical proprioception was assessed using a laser pointer system (Motion Guidance Clinic Kit, Motion Guidance LLC, Denver, CO, USA). The laser device was mounted on the participant's head, and participants were seated comfortably at a distance of 90 cm from the target. With the participant's eyes closed, the examiner positioned the head in the starting position and asked the participant to memorize this position. Participants then performed maximal right and left cervical rotation and returned to the starting position without guidance, verbally confirming when they perceived proper realignment. Each movement was repeated three times. The distance between the final position of the laser beam and the center of the target was measured, and the arithmetic mean of the three trials was recorded as the deviation distance (cm). To calculate the deviation angle, the arctangent formula (deviation distance / distance between the laser and the target) was used.
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 5 Mar 2026.
- 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?
An observational study of Football, run by Ondokuz Mayıs 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 5 Mar 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?
Cervical extension strength (time frame: baseline a year). The study lists 3 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 5 Mar 2026.