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Knee angle may predict injury risk in young volleyball athletes

NCT ID NCT07711236

Knowledge-focused Sponsor: Sinop University Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
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Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

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Status unknown
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First seen Jul 17, 2026 · Last updated Jul 17, 2026

Summary

This study looks at how the angle of the knee during a single-leg squat relates to balance, agility, and ankle flexibility in adolescent female volleyball players. Researchers will measure knee alignment from video recordings and compare it with performance tests. The goal is to better understand biomechanical factors that might influence injury risk in young athletes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If a link is found, it could help coaches and trainers identify movement patterns that may increase injury risk in young athletes.
What could go wrong
This is an observational study with no intervention, so it cannot prove cause and effect. Results may not apply to other sports or age groups.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

70 people

The number who actually took part.

Started

Mar 2026

Finished

Jul 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study population consisted of adolescent female volleyball players aged 10 to 19 years who were regularly training at least 3 days per week at AB Volleyball Academy in Izmir, Türkiye. Only participants who had reached menarche and met all eligibility criteria were included.

Ages

10 to 19 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Being female and between 10 and 19 years of age * Participating in regular volleyball training at least 3 days per week * Having reached menarche Exclusion Criteria: * Having sustained a lower extremity injury within the previous 6 months * Having a history of lower extremity surgery * Using medication that could affect balance, attention, or physical performance * Having a neurological, orthopedic, or systemic condition that could affect performance

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Agility Ankle dorsiflexion Dynamic balance Dynamic knee valgus

Contacts and locations

Locations

  • AB Volleyball Academy

    Izmir, Ödemiş, 35750, Turkey (Türkiye)

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