Can jump training reshape teen Athletes' thigh muscles?
NCT ID NCT05558033
First seen Sep 18, 2026 · Last updated Sep 18, 2026
Summary
Researchers at Hacettepe University are studying how plyometric training, a type of jump-based exercise, affects the structure of two thigh muscles in adolescent football players. Thirty-six healthy players aged 12 to 19 will be split into a training group and a control group. The training group performs plyometric exercises for eight weeks, while the control group watches videos and imagines the movements. Ultrasound images measure changes in muscle fiber length, angle, and thickness, and a single-leg jump test checks functional performance.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- plyometric training, a form of jump-based exercise, with some participants watching videos and imagining the movements instead of performing them
- What this could lead to
- If it works, this could help coaches and clinicians understand how jump training shapes muscle structure in young athletes, potentially guiding injury prevention and performance programs.
- What could go wrong
- The study is small, with 36 participants, and focuses on healthy adolescent football players, so results may not apply to other age groups or sports. Muscle architecture changes do not always translate into better performance or fewer injuries.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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36 people
The number who actually took part.
- Started
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Nov 2022
- Finished
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Jun 2023
- Lead sponsor
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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
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12 to 19 years
- Sex
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Male participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * Be in the 12-19 age range * Being actively playing football as licensed Exclusion Criteria: * Those who have undergone lower extremity surgery * Those with a history of second and third degree strain type injuries in the hamstring and quadriceps muscle groups * Those with a history of injury to the lower extremity in the last two years * Those with a history of congenital, neurological, orthopedic, rheumatological and cardiopulmonary pathologies or anomalies, * Those with a diagnosis of systemic disease (diabetes, blood pressure, thyroid diseases, etc.) * Those with acute infection and pain * Those with a diagnosis of joint instability * Those with a body mass index of 30 and above * Those who received energy supplements or ergogenic aids during the study or during the 6-month period before the study * Those who do not follow the research protocol
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Of Football Club
Trabzon, Turkey (Türkiye)
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