Jump start recovery: new study tests early plyometrics for tendon pain
NCT ID NCT06774547
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares two exercise programs for people with long-term pain in the Achilles, patellar tendon, or plantar fascia. One group does standard strength training, while the other adds early jumping (plyometric) exercises. Researchers will measure jump function after 12 weeks and check if re-injury rates drop over a year. The goal is to see if starting plyometrics sooner helps athletes return to sport faster and safer.
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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 120 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Jan 2028
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 50 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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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: 1. participants are required to have performed either recreational running or participated in sports that include running or jumping activities (e.g., football, basketball, handball, volleyball) at least once per week for at least three months immediately prior to pain onset 2. have had symptoms for at least three months 3. have pain/soreness with palpation of the tendon/fascia 4. mean pain during the past week of at least 2 on a 0 to 10 Numerical Rating Scale 5. pain during a pain provocation test (patellar tendinopathy: five single-legged decline squats, Achilles tendinopathy and plantar fasciopathy: ten single-legged heel raises) Exclusion Criteria: 1. previous lower-extremity surgery 2. other lower-extremity musculoskeletal conditions that have required treatment by a healthcare professional during the past three months 3. pregnancy 4. diabetes 5. history of inflammatory systemic diseases (e.g., rheumatoid arthritis or spondylarthritis) 6. having received an injection with corticosteroid within the past six months.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University College of Northern Denmark
RECRUITINGAalborg, 9220, Denmark
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Other studies related to the condition(s) this trial covers.
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- Could a zappy headband ease your Jumper's knee?