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Can a simple exercise trick boost hamstring strength in young pole vaulters?

NCT ID NCT07705698

Symptom relief Sponsor: Toros University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
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

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 15, 2026 · Last updated Jul 16, 2026 · Updated 1 time

Summary

This trial tests whether adding blood flow restriction to a standard hamstring exercise helps elite adolescent female pole vaulters build more strength and muscle. Thirty-six athletes aged 12 to 18 will do either the Nordic hamstring exercise alone, the exercise with blood flow restriction, or their usual training for eight weeks. Researchers will measure changes in hamstring strength, muscle size, and sprint performance.

What this could mean

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

Active substance
Nordic hamstring exercise with or without blood flow restriction
What this could lead to
If it works, this could give coaches a simple way to help young female athletes build stronger hamstrings and reduce injury risk.
What could go wrong
This is a small, early study in a very specific group, so results may not apply to other athletes or the general public.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 36 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2026

Expected to finish

Apr 2027

An estimate. End dates often move.

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.

Ages

12 to 18 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: * Female athletes aged between 12 and 18 years. * Elite pole vault athletes actively participating in organized training and competition. * Minimum of 1 year of regular pole vault training experience. * Participation in regular training at least 3 times per week. * Ability to participate in an 8-week exercise program. * Written informed assent from the athlete and written informed consent from a parent or legal guardian. Exclusion Criteria: * Any lower extremity musculoskeletal injury within the previous 6 months. * Previous hamstring muscle surgery. * Current pain or injury limiting sports participation. * Neurological disorders affecting movement or balance. * Cardiovascular conditions contraindicating exercise training or blood flow restriction. * Any contraindication to blood flow restriction training. * Participation in another structured hamstring strengthening program during the study period. * Inability or unwillingness to comply with study procedures.

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As listed by the trial registrant

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

Athletic performance Hamstring adaptation Muscle strength Sports injury prevention

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

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    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Adana Olympic Preparation Center

    RECRUITING

    Adana, Turkey (Türkiye)

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