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Trail vs. tarmac: which running surface spares your knees?

NCT ID NCT07408700

Knowledge-focused Sponsor: University of Oviedo Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 surveys 134 recreational runners to see if the type of surface they run on (like asphalt or trail) and how much they train is linked to patellofemoral pain, a common knee problem. Participants answer questions about their running habits and any knee pain they've had. The goal is to identify factors that increase or decrease the risk of knee pain, which could help runners and coaches plan safer training.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this study could help identify which running surfaces and training habits are safest for knees, leading to better prevention advice for recreational runners.
What could go wrong
This is an observational study, not a treatment trial. It can only show links, not cause and effect. Results may not apply to all runners or settings.

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.

Participants

About 134 people

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

Started

Feb 2026

Expected to finish

May 2026

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.

Who is studied

Adult non-professional / recreational runners who train regularly and perform the majority of their training on asphalt, trail, or mountain terrain.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Participants aged 18 years or older. * Recreational (non-professional) runners. * Have run regularly over the previous 3 months (at least once per week). * Are able to report their predominant training terrain (asphalt, trail, or mountain). * Have or do not have patellofemoral pain. * Have provided written informed consent. Exclusion Criteria: * Have had a complete cessation of running for ≥4 weeks within the previous 3 months. * Have undergone major knee or ankle surgery within the past year. * Have a diagnosis of conditions that clearly alter gait or running pattern. * Present severe knee disorders that preclude accurate assessment of patellofemoral pain. * Have incomplete questionnaires for essential variables (terrain type, patellofemoral pain, AKPS, training load, or training volume)

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Conditions

The condition(s) this trial relates to.

Motor Activity patellofemoral pain syndrome

As listed by the trial registrant

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

Patello femoral pain syndrome Runners

Contacts and locations

Locations

  • Universidad de Oviedo

    Oviedo, Principality of Asturias, 33006, Spain

More trials for these conditions

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