Low Back PainHamsNCT06837753
Hamstring Stretching Effective on Nonspecific Low Back Pain
A study testing Exercise in people with Low Back Pain, run by Biruni University at 1 site in Turkey (Türkiye).
Trial summary
Low back pain is one of the most common complaints in the world and can be considered a universal health problem for humanity. Low back pain is a multifactorial disease with multiple etiologies. Risk factors are difficult to identify. Read more about this study
- Who is it for?
- Ages 25 to 45 years
- Conditions the study is for
- Low Back Pain
- What is being tested?
- Exercise
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 46 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 12 Dec 2023to 10 Aug 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 25 to 45 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- 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.
Who cannot join
- 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.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Does Hamstring Stretching Effective on Nonspecific Low Back Pain?"
Low back pain is one of the most common complaints in the world and can be considered a universal health problem for humanity. Low back pain is a multifactorial disease with multiple etiologies. Risk factors are difficult to identify. It is reported in the literature that 70-80% of the world's population has low back pain at some point in their lives, and 95% of this pain is mechanical. Mechanical low back pain (MBA) can be described as a clinical picture that develops as a result of overuse, strain, traumatization or deformation of the structures that make up the spine. In order to define low back pain mechanically, all organic causes such as inflammatory, infectious, tumoral, metabolic causes, fractures and pain reflected from internal organs must be excluded. The most common diseases that cause low back pain are; They are caused by mechanical factors and degenerative diseases. Mechanical and static stresses can lead to joint blockage, restricting the range of motion of the joint along with pain. Non-Specific many factors affect low back pain. Kim and Shin reported that asymmetry of hip extension range of motion of both hip joints was associated with nonspecific low back pain rather than simple hip extension range of motion, and they found that limiting hip extension was compensatory.
- Conditions
- Low Back Pain
- Being tested
- Exercise
- Medical subject headings
- Low Back Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ExerciseOther
It consist of traditional exercises.
| Study group | Role | What they receive |
|---|---|---|
| exercise group | Experimental | Exercise program and 3 way hamstring strech will be applied. Receives: Other: Exercise |
| control group | Other | Just Exercise program will be applied. Receives: Other: Exercise |
What is being measured
The primary outcome is the main question the study is designed to answer.
Flexibility assessment
During the Passive Knee Extension Test, participants will be positioned supine with the hip of the tested limb flexed to 90° while the contralateral limb will be stabilized. The examiner gradually extended the knee until resistance or discomfort will reported. The knee extension angle will be measured using a digital goniometer and recorded in degrees.
Measured: 0-4 week
Flexibility assessment
fingertip-to-floor (FTF) test, participants stood on a 20-cm step and will instructed to bend forward and reach toward the floor without flexing their knees. The distance between the third fingertip and the floor will measured using a tape measure and recorded in centimeters. The minimal detectable change (MDC) for the FTF test is reported as 4.5 cm
Measured: 0-4 week
Flexibility assessment
Sit- and-reach test (SRT) participants sİt with their knees fully extended and feet position against the testing box. They are instructed to reach forward as far as possible while keeping their knees extended. The furthest distance reached will recorded in centimeters
Measured: 0-4 week
Secondary outcomes (4)
Functionality index
Functional Rating Index (FDI) was obtained by combining similar structures of the neck disability index and the Osweestry low back pain disability index, and its validity and reliability have been proven. The validity and reliability of the Turkish version of this survey was conducted by Bayar et al. in 2004. FDI consists of 10 parts that measure the function of the spinal musculoskeletal (waist, neck pain) system and pain. Eight address activities of daily living that may be affected by the spinal condition. Two of them address 2 different characteristics of pain. Using a 5-choice scale for each item, the amount of current pain or perceived ability to function is ranked by selecting 5 response points. 0=no pain or full function, 1=mild pain or mild limitation, 2=moderate pain or moderate limitation, 3=severe pain or severe limitation, 4=worst pain or inability to function. Scoring varies between 0-40, and as the score increases, functional status worsens
Measured: 0-4 week
Functional disability
Functional disability will be assessed using the Oswestry Disability Index (ODI). The ODI consists of 10 items evaluating pain intensity and disability during daily activities. Each item will be scored from 0 to 5, with higher scores indicating greater disability. The Turkish version of the ODI has demonstrated acceptable validity and reliability (Yakut et al., 2004). ODI scores will be categorized as minimal (0-20), moderate (21-40), severe (41-60), crippled (61-80), and bed-bound (81-100) disability. A 30% improvement from baseline will be considered the threshold for clinically meaningful improvement in individuals with low back pain.
Measured: 0-4 week
Pain status
Pain status Patients pain status were evaluated with VAS between 0 and 10 for low back pain during movement. (No pain at 0 points, severe pain at 10 points)
Measured: 0-4 week
Jump performance
Vertical jump performance will be assessed using the squat jump (SJ) test. Participants will start from a semi-squat position without preparatory countermovement and will be instructed to jump as high as possible. Jump height will be measured using a Vertec system, which has demonstrated acceptable validity and reliability for vertical jump assessment. Three trials will be performed under standardized conditions, and the highest value will be recorded. Jump height will be calculated as the difference between standing reach height and maximal jump reach height and will be recorded in centimeters.
Measured: 0-4 week
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Feb 2025
- Study start12 Dec 2023
- Primary completion1 Jan 2024
- Study completion10 Aug 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Low Back PainStudies of the same condition, open and under way.
- More trials run by Biruni UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 46 participants (actual)
Sponsor and investigators
- Lead sponsor
- Biruni University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Eylül Pınar KISA, Biruni University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06837753
- Sponsor's protocol ID
- Hamstring
- Acronym
- Hams
- Status last verified
- Feb 2025
- First submitted
- 13 Dec 2023
- Last updated
- 22 Jul 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 22 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Does Hamstring Stretching Effective on Nonspecific Low Back Pain?"
- ClinicalTrials.gov ID
- NCT06837753
- Acronym / sponsor ID
- Hams / Hamstring
- Conditions
- Low Back Pain
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 46 participants (actual)
- Lead sponsor
- Biruni UniversityUniversity, hospital or other
- Study start
- 12 Dec 2023 (actual)
- Primary completion
- 1 Jan 2024 (actual)
- Study completion
- 10 Aug 2024 (actual)
- First posted
- 20 Feb 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Low back pain is one of the most common complaints in the world and can be considered a universal health problem for humanity. Low back pain is a multifactorial disease with multiple etiologies. Risk factors are difficult to identify. It is reported in the literature that 70-80% of the world's population has low back pain at some point in their lives, and 95% of this pain is mechanical. Mechanical low back pain (MBA) can be described as a clinical picture that develops as a result of overuse, strain, traumatization or deformation of the structures that make up the spine. In order to define low back pain mechanically, all organic causes such as inflammatory, infectious, tumoral, metabolic causes, fractures and pain reflected from internal organs must be excluded. The most common diseases that cause low back pain are; They are caused by mechanical factors and degenerative diseases. Mechanical and static stresses can lead to joint blockage, restricting the range of motion of the joint along with pain. Non-Specific many factors affect low back pain. Kim and Shin reported that asymmetry of hip extension range of motion of both hip joints was associated with nonspecific low back pain rather than simple hip extension range of motion, and they found that limiting hip extension was compensatory.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| exercise group | Experimental | Other: ExerciseExercise program and 3 way hamstring strech will be applied. |
| control group | Other | Other: ExerciseJust Exercise program will be applied. |
Who may qualify
- Ages
- 25 to 45 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- 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°,
Key exclusion criteria (5 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ExerciseIt consist of traditional exercises. | Other | control group, exercise group |
Primary outcome
Flexibility assessment
Time frame: 0-4 week
During the Passive Knee Extension Test, participants will be positioned supine with the hip of the tested limb flexed to 90° while the contralateral limb will be stabilized. The examiner gradually extended the knee until resistance or discomfort will reported. The knee extension angle will be measured using a digital goniometer and recorded in degrees.
Flexibility assessment
Time frame: 0-4 week
fingertip-to-floor (FTF) test, participants stood on a 20-cm step and will instructed to bend forward and reach toward the floor without flexing their knees. The distance between the third fingertip and the floor will measured using a tape measure and recorded in centimeters. The minimal detectable change (MDC) for the FTF test is reported as 4.5 cm
Flexibility assessment
Time frame: 0-4 week
Sit- and-reach test (SRT) participants sİt with their knees fully extended and feet position against the testing box. They are instructed to reach forward as far as possible while keeping their knees extended. The furthest distance reached will recorded in centimeters
4 secondary outcomes
Functionality index
Time frame: 0-4 week
Functional disability
Time frame: 0-4 week
Pain status
Time frame: 0-4 week
Jump performance
Time frame: 0-4 week
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Jul 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Exercise in people with Low Back Pain, run by Biruni University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 22 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Flexibility assessment (time frame: 0-4 week). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Jul 2026.