Nordic Hamstring Exercise With or Without Blood Flow Restriction in Elite Adolescent Female Pole Vaulters

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

In this randomized controlled trial, 36 elite adolescent female pole vaulters aged 12–18 will be assigned to three groups: standard Nordic Hamstring Exercise, Blood Flow Restriction-assisted Nordic Hamstring Exercise, or a control group receiving routine training. The intervention lasts eight weeks with supervised sessions three times per week. Outcomes include hamstring strength, muscle morphology by ultrasonography, and functional performance via a 30-meter sprint, assessed before and after the program. The aim is to determine if adding blood flow restriction provides additional benefits over standard training or routine activity alone.

Why it matters

Who can join: the full rules

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.

Where it's running

• Adana Olympic Preparation Center
  Adana, Turkey (Türkiye) Recruiting

Study contacts

• Study coordinator: İdil Esin Ünlü, Assist. Prof. Dr.
• Email: idil.unlu@toros.edu.tr
• Phone: +90 506 515 66 22

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.