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Shocking the femoral nerve: a new way to treat Jumper's knee?

NCT ID NCT07237867

Symptom relief Sponsor: Hospital Clinic of Barcelona Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how different types of electrical nerve stimulation affect leg strength in athletes with patellar tendinopathy (jumper's knee). Nineteen athletes will try three stimulation methods in separate sessions to see which one best improves quadriceps strength. The goal is to help doctors and trainers choose the right stimulation settings for recovery and performance.

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 19 people

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

Started

Sep 2025

Expected to finish

Dec 2025

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

18 to 40 years

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Adults aged 18 to 40 years. * Recreational or competitive athletes with clinically diagnosed patellar tendinopathy for at least 3 months. * Ultrasound-confirmed patellar tendinopathy, including hypoechoic areas, tendon thickening, or neovascularization consistent with clinical diagnosis. Presence of pain during tendon-loading activities (e.g., jumping, running, squatting). * Ability to perform maximal voluntary isometric contractions of the quadriceps. * Ability to comply with all study procedures and attend all experimental sessions. * Written informed consent obtained prior to participation. Exclusion Criteria: * Previous knee surgery or traumatic knee injury within the past 12 months. * Complete or partial patellar tendon rupture. * Neurological disorders affecting lower limb strength or motor control. * Contraindications to electrical stimulation, including implanted electrical devices (e.g., pacemaker). * Current lower-limb radiculopathy or neuropathy. * Skin infections, open wounds, or dermatological conditions at the stimulation site. * Use of analgesics, anti-inflammatories, or corticosteroid injections within the past 48 hours. * Participation in another interventional study in the previous 30 days. * Pregnancy or suspected pregnancy.

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Conditions

The condition(s) this trial relates to.

patellar tendinitis

As listed by the trial registrant

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

Patellar tendinopathy / jumpers knee

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

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

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Blanquerna University

    RECRUITING

    Barcelona, Barcelona, 08020, Spain

More trials for these conditions

Other studies related to the condition(s) this trial covers.