Ultrasound zaps knee tendons to boost jumps – but does it work?
NCT ID NCT07507695
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a 5-minute ultrasound treatment on the patellar tendon can immediately improve vertical jump height and leg strength in healthy young adults. Forty university students will be randomly assigned to receive real or fake (sham) ultrasound, and neither they nor the assessor will know which group they are in. Jump performance, muscle strength, and knee joint awareness will be measured before and right after the treatment. The goal is to see if this common physiotherapy tool has any acute benefit for explosive movement.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- therapeutic ultrasound
- What this could lead to
- If it works, this could show that a quick ultrasound treatment before sports might boost explosive performance like jumping.
- What could go wrong
- This is a small, early-stage study in healthy volunteers, not patients. The effect may be small or no different from placebo, and results may not apply to athletes or injured people.
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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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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Apr 2026
An estimate. Start dates often move.
- Expected to finish
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May 2026
An estimate. End dates often move.
- 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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18 to 35 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Healthy university students aged 18-35 years * No history of lower extremity injury or surgery in the past 12 months * No current musculoskeletal or neurological disorders affecting the lower limbs Exclusion Criteria: * History of patellar tendon injury or knee pain * Contraindications to therapeutic ultrasound (e.g., skin lesions, open wounds at the knee, or implanted electronic devices) * Any cardiovascular, neurological, or musculoskeletal condition that may affect jump performance * Use of medications that could affect neuromuscular function (e.g., muscle relaxants)
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As listed by the trial registrant
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How to take part
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The official record
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