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Tight hamstrings and back pain: could a simple stretch offer relief?

NCT ID NCT06837753

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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 22, 2026 · Last updated Jul 23, 2026 · Updated 1 time

Summary

This trial investigates whether adding hamstring stretching to traditional exercises improves flexibility and function in people with nonspecific low back pain lasting at least 12 weeks. Forty-six adults with limited hamstring flexibility will be randomly assigned to either stretching plus exercises or exercises alone. Researchers will measure changes in flexibility and disability over the study period.

What this could mean

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

Active substance
hamstring stretching plus traditional exercises
What this could lead to
If stretching helps, it could offer a simple, low-cost addition to standard care for chronic low back pain.
What could go wrong
This is a small, early-stage trial with only 46 participants, so results may not apply widely. Stretching alone is unlikely to be a complete solution for complex back pain.

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

46 people

The number who actually took part.

Started

Dec 2023

Finished

Aug 2024

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

25 to 45 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: * Patients with complaints of low back pain, * NLBP for at least 12 weeks, * finger-to-ground distance greater than 0 cm; a passive straight-leg raising -(SLR) angle of less than 80°, measured with a hand-held goniometer; * normal mobility of the hip; * passive knee extension ≥25°, * VAS score between 3 and 7 will be included. Exclusion Criteria: * People with a history of hamstring injury in the last two years, * fractures in the spine or lower extremities, * pregnancy, * leg length difference of more than 2 cm, * and obesity will be excluded from the study.

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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.

Contacts and locations

Locations

  • Eylül Pınar Kısa

    Istanbul, Istanbul, 34720, Turkey (Türkiye)

More trials for these conditions

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