Hamstring ContracturesNCT04193683
The Effect Of Myofascial Release Technique On Respiratory Parameters in Subjects With Short Hamstring Muscle
A study testing Myofascial Release Technique in people with Hamstring Contractures, run by Bezmialem Vakif University at 1 site in Turkey (Türkiye).
Trial summary
The aim of this study was to investigate the effect of myofascial release technique on rib cage mobility, respiratory function, respiratory muscle strength and endurance in patients with hamstring muscle shortness. Read more about this study
- Who is it for?
- Ages 18 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Hamstring Contractures
- What is being tested?
- Myofascial Release Technique
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 30 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 15 Dec 2019to 28 Feb 2020
- 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 18 to 40 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- more than 15 degrees knee flexion angle during popliteal angle test,
- no generalized joint laxity according to Beighton Criteria, and
- no musculoskeletal problems of lower extremities.
Who cannot join
- history of lower extremity and/or axial skeletal fracture;
- recent muscle, tendon injury in lower extremity;
- history of lumbal disc herniation, arthritic and/or inflammatory disease;
- obesity, diabetes and/or metabolic syndrome;
- history of surgery in the last month,
- using muscle relaxant medication in the last month;
- received manual therapy in the last month
Trial locations and contacts
1 site in 1 country.
About this study
Official title: The Effect Of Myofascial Release Technique On Respiratory Functions, Respiratory Muscle Strength and Endurance in Subjects With Short Hamstring Muscle
The aim of this study was to investigate the effect of myofascial release technique on rib cage mobility, respiratory function, respiratory muscle strength and endurance in patients with hamstring muscle shortness.
Read the detailed description
Hamstring flexibility is important to maintain activities such as walking and running in daily life. Hamstring muscle shortness, commonly seen in the community, is a risk factor for many musculoskeletal pathologies. Clinical observations have shown that the shortness of the Hamstring muscle causes spinal malalignment. This deterioration of the spine alignment may adversely affect the rib cage expansion. Moreover, considering that the optimal length of the muscles provides optimal contraction, it was found that the spinal malalignment adversely affected the effective contraction of the diaphragm by changing the position of diaphragm. A different view is that, because the fascia functions as a single tissue surrounding the entire body, a restriction in the hamstring muscle can also cause a restriction in distal muscles such as diaphragm through the fascia.
There are many treatment methods used to increase the flexibility of the hamstring muscle. One of these methods is the myofascial release technique. In this technique, which targets both muscle and fascia, applying light and prolonged pressure provides the myo-fascial complex to reach its optimal length, resulting in the optimal function of the muscle. In our best knowledge, no study has evaluated the effect of myofascial release technique on respiratory parameters in patients with hamstring muscle shortness.
- Conditions
- Hamstring Contractures
- Being tested
- Myofascial Release Technique, Sham-Ultrasound
- Keywords
- Hamstring Muscle, Hamstring Shortness, Hamstring Stiffness, Myofascial Release Technique, Respiratory Functions, Respiratory Muscle Strength, Respiratory Muscle Endurance
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Myofascial Release TechniqueOther
Myofascial release technique will bi applied bottom of the feet, back of the legs and hamstrings in both extremities. The practitioner will decide how long she should stay in a region according to the feeling of releasing in the tissue. The technique will be applied to a region at least 3 times.
Sham-UltrasoundOther
Sham-ultrasound will be applied to back of legs and thighs in both extremities without pressure and all parameters of the ultrasound device except the timer will be closed.
| Study group | Role | What they receive |
|---|---|---|
| Sham-Ultrasound | Sham comparator | Intervention will include one session sham-ultrasound application to both lower extremities of participant. The total time will be 15 minutes. Receives: Other: Sham-Ultrasound |
| Myofascial Release Technique+Sham-Ultrasound | Experimental | In addition to one session sham-ultrasound, the intervention will include one session myofascial release technique to both lower extremities of participant. The total time will be 30 minutes. Receives: Other: Myofascial Release Technique; Other: Sham-Ultrasound |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change from baseline subcostal region chest expansion test at 60 minutes
Chest Circumference Measurement
Measured: 60 minutes
Change from baseline xiphoid region chest expansion test at 60 minutes
Chest Circumference Measurement
Measured: 60 minutes
Change from baseline axillary region chest expansion test at 60 minutes
Chest Circumference Measurement
Measured: 60 minutes
Secondary outcomes (7)
Change from baseline maximum inspiratory pressure (MIP) at 60 minutes
Respiratory Muscle Strength Test
Measured: 60 minutes
Change from baseline maximum expiratory pressure (MEP) at 60 minutes
Respiratory Muscle Strength Test
Measured: 60 minutes
Change from baseline Forced Vital Capacity (FVC) at 60 minutes
Respiratory Function Test
Measured: 60 minutes
Change from baseline Forced Expiratory Volume in 1 second (FEV1) at 60 minutes
Respiratory Function Test
Measured: 60 minutes
Change from baseline FEV1/FVC at 60 minutes
Respiratory Function Test
Measured: 60 minutes
Change from baseline Peak Expiratory Flow (PEF) at 60 minutes
Respiratory Function Test
Measured: 60 minutes
Change from baseline Forced Expiratory Flow 25-75% at 60 minutes
Respiratory Function Test
Measured: 60 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Dec 2019
- Study start15 Dec 2019
- Primary completion18 Feb 2020
- Study completion28 Feb 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Hamstring ContracturesStudies of the same condition, open and under way.
- More trials run by Bezmialem Vakif 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
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Bezmialem Vakif University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Betül Çınar, Study chair, Bezmialem Vakif University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04193683
- Sponsor's protocol ID
- bvubcinar01
- Status last verified
- Sep 2026
- First submitted
- 3 Dec 2019
- Last updated
- 22 Sep 2026
- Results posted
- No
- Data monitoring committee
- 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 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect Of Myofascial Release Technique On Respiratory Functions, Respiratory Muscle Strength and Endurance in Subjects With Short Hamstring Muscle
- ClinicalTrials.gov ID
- NCT04193683
- Acronym / sponsor ID
- bvubcinar01
- Conditions
- Hamstring Contractures
- Keywords
- Hamstring Muscle, Hamstring Shortness, Hamstring Stiffness, Myofascial Release Technique, Respiratory Functions, Respiratory Muscle Strength, Respiratory Muscle Endurance
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Bezmialem Vakif UniversityUniversity, hospital or other
- Study start
- 15 Dec 2019 (actual)
- Primary completion
- 18 Feb 2020 (actual)
- Study completion
- 28 Feb 2020 (actual)
- First posted
- 10 Dec 2019 (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.
The aim of this study was to investigate the effect of myofascial release technique on rib cage mobility, respiratory function, respiratory muscle strength and endurance in patients with hamstring muscle shortness.
Detailed description
Hamstring flexibility is important to maintain activities such as walking and running in daily life. Hamstring muscle shortness, commonly seen in the community, is a risk factor for many musculoskeletal pathologies. Clinical observations have shown that the shortness of the Hamstring muscle causes spinal malalignment. This deterioration of the spine alignment may adversely affect the rib cage expansion. Moreover, considering that the optimal length of the muscles provides optimal contraction, it was found that the spinal malalignment adversely affected the effective contraction of the diaphragm by changing the position of diaphragm. A different view is that, because the fascia functions as a single tissue surrounding the entire body, a restriction in the hamstring muscle can also cause a restriction in distal muscles such as diaphragm through the fascia.
There are many treatment methods used to increase the flexibility of the hamstring muscle. One of these methods is the myofascial release technique. In this technique, which targets both muscle and fascia, applying light and prolonged pressure provides the myo-fascial complex to reach its optimal length, resulting in the optimal function of the muscle. In our best knowledge, no study has evaluated the effect of myofascial release technique on respiratory parameters in patients with hamstring muscle shortness.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Sham-Ultrasound | Sham comparator | Other: Sham-UltrasoundIntervention will include one session sham-ultrasound application to both lower extremities of participant. The total time will be 15 minutes. |
| Myofascial Release Technique+Sham-Ultrasound | Experimental | Other: Myofascial Release Technique, Other: Sham-UltrasoundIn addition to one session sham-ultrasound, the intervention will include one session myofascial release technique to both lower extremities of participant. The total time will be 30 minutes. |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- more than 15 degrees knee flexion angle during popliteal angle test,
- no generalized joint laxity according to Beighton Criteria, and
- no musculoskeletal problems of lower extremities.
Key exclusion criteria (7 listed)
- history of lower extremity and/or axial skeletal fracture;
- recent muscle, tendon injury in lower extremity;
- history of lumbal disc herniation, arthritic and/or inflammatory disease;
- obesity, diabetes and/or metabolic syndrome;
- history of surgery in the last month,
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 |
|---|---|---|
| Myofascial Release TechniqueMyofascial release technique will bi applied bottom of the feet, back of the legs and hamstrings in both extremities. The practitioner will decide how long she should stay in a region according to the feeling of releasing in the tissue. The technique will be applied to a region at least 3 times. | Other | Myofascial Release Technique+Sham-Ultrasound |
| Sham-UltrasoundSham-ultrasound will be applied to back of legs and thighs in both extremities without pressure and all parameters of the ultrasound device except the timer will be closed. | Other | Myofascial Release Technique+Sham-Ultrasound, Sham-Ultrasound |
Primary outcome
Change from baseline subcostal region chest expansion test at 60 minutes
Time frame: 60 minutes
Chest Circumference Measurement
Change from baseline xiphoid region chest expansion test at 60 minutes
Time frame: 60 minutes
Chest Circumference Measurement
Change from baseline axillary region chest expansion test at 60 minutes
Time frame: 60 minutes
Chest Circumference Measurement
7 secondary outcomes
Change from baseline maximum inspiratory pressure (MIP) at 60 minutes
Time frame: 60 minutes
Change from baseline maximum expiratory pressure (MEP) at 60 minutes
Time frame: 60 minutes
Change from baseline Forced Vital Capacity (FVC) at 60 minutes
Time frame: 60 minutes
Change from baseline Forced Expiratory Volume in 1 second (FEV1) at 60 minutes
Time frame: 60 minutes
Change from baseline FEV1/FVC at 60 minutes
Time frame: 60 minutes
Change from baseline Peak Expiratory Flow (PEF) at 60 minutes
Time frame: 60 minutes
Change from baseline Forced Expiratory Flow 25-75% at 60 minutes
Time frame: 60 minutes
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 Sep 2026.
- Individual participant dataSharing planned: No
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.
Betül Çınar study chair
Bezmialem Vakif University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Myofascial Release Technique in people with Hamstring Contractures, run by Bezmialem Vakif 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 3 inclusion and 7 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 Sep 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. Some participants in this study may receive a placebo. 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?
Change from baseline subcostal region chest expansion test at 60 minutes (time frame: 60 minutes). 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 Sep 2026.