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Foam roller or nerve glides: which eases tight hamstrings better?

NCT ID NCT07627581

Symptom relief Sponsor: Universidad Pontificia de Salamanca Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 pilot study tests two simple, at-home techniques—foam rolling and nerve sliding—to see which better improves hamstring flexibility in 30 adults with tight hamstrings and a history of low back pain. Participants will try both methods on different days, with a month break in between. The goal is to find an easy way to ease discomfort and improve movement.

What this could mean

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

Active substance
Self-myofascial release using a foam roller and self-administered neurodynamic sliding technique
What this could lead to
If successful, this study could point toward simple, at-home exercises to improve hamstring flexibility and reduce low back pain.
What could go wrong
This is a very small pilot study (30 people) with no blinding, so results may not be reliable or generalizable. The interventions are short-term (3 days), so any benefits might be temporary.

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 30 people

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

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

Aug 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.

Ages

18 to 65 years

Sex

Anyone

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: * Men and women aged 16 years or older. * History of non-specific low back pain during the previous three months and/or recurrent or chronic non-specific low back pain. * Limited hamstring flexibility, defined as hamstring tightness with 75 degrees or less of hip flexion with knee extension during the Straight Leg Raise test. * No previous surgery involving the spine or lower limb. * No hamstring stretching exercises performed in the weeks prior to participation. * Ability and willingness to provide informed consent. * Availability to perform both self-administered physiotherapy techniques according to the study protocol. Exclusion Criteria: * Pregnancy or breastfeeding. * History of hamstring muscle or tendon injury during the previous year. * Lumbar or lower-limb neurological deficits. * Lower-limb length discrepancy. * Specific spinal pathology, including tumor, infection, fracture, or inflammatory disease. * History of lumbar disc herniation. * History of whiplash injury. * Any contraindication to physical exercise. * Menstrual pain at the time of assessment or intervention. * Scheduled surgery during the intervention or follow-up period. * History of cardiac disease. * Incomplete or incorrectly completed questionnaires or missing assessment data. * Refusal to complete part or all of the study intervention. * Development of a low back pain episode during the study intervention.

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Conditions

The condition(s) this trial relates to.

Low Back Pain

As listed by the trial registrant

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

Hamstring tightness Low back pain

How to take part

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  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

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Contacts and locations

Locations

  • Clínica Universitaria Salus Infirmorum, Universidad Pontificia de Salamanca

    Madrid, Madrid, 28015, Spain

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