Static StretchingNCT06960590
Determining the Minimal Effective Dose of Static Stretching for Increasing Range of Motion in Adults
A study testing Training - static streching in people with Static Stretching, run by Józef Piłsudski University of Physical Education at 1 site in Poland.
Trial summary
The study is planned to be conducted in 2025. The methods used in the study are non-invasive methods. The study groups will perform 1 to 3 static stretching sessions per week. The number of series per session will be from 1 to 3. The static stretching time of the back band in the series will be from 20 s to 60 s. Read more about this study
- Who is it for?
- Ages 18 to 25 yearsHealthy volunteers can take part
- Conditions the study is for
- Static Stretching
- What is being tested?
- Training - static streching
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 300 participants
- Where
- 1 sitePoland
- Study dates
- 25 Mar 2025to 6 Aug 2025
- 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 25 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Age over 18 years,
- No lower limb injuries, no spinal injuries and no craniocerebral injuries in the last 6 months,
- No lower limb surgeries, no spinal surgeries and no central nervous system surgeries in the last 6 months,
Who cannot join
- Age under 18 years
- Injuries to the lower limbs, spine or craniocerebral injuries within the last 6 months,
- Surgical procedures to the lower limbs, spine or surgical procedures to the central nervous system within the last 6 months,
Trial locations and contacts
1 site in 1 country.
About this study
The study is planned to be conducted in 2025. The methods used in the study are non-invasive methods. The study groups will perform 1 to 3 static stretching sessions per week. The number of series per session will be from 1 to 3. The static stretching time of the back band in the series will be from 20 s to 60 s. The total stretching time per week will be from 45 s to 135 s. The break between series will be 45 s, and the duration of the intervention will be from 6 to 8 weeks. During stretching, the subject maintains a maximum bend with straight knee joints for a specified time. Before starting the study, participants will undergo a toe-to-floor test to assess the flexibility of the back band. The test will be repeated after the intervention. The aim of the study is to determine the minimum effective dose of static stretching. Currently, anecdotal evidence suggests that this dose is 90 seconds of static stretching per week.
The study does not involve any likelihood of harm to study participants as a result of participating in the study.
- Conditions
- Static Stretching
- Being tested
- Training - static streching
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Training - static strechingOther
The intervention group performed one training session per week. Each training session consisted of 2 series of static stretching of the back band. The rest time between series was 45 s. The intervention lasted 6 weeks.
| Study group | Role | What they receive |
|---|---|---|
| Streching group | Experimental | The group performed one training session per week consisting of 2 sets of static stretching (each set 45s of static streching) Receives: Other: Training - static streching |
| Control group | No intervention | Only tests were performed in the group, no intervention was introduced |
| Static streching group 2 | Experimental | The intervention group performed one training session per week. Each training session consisted of 2 series of static stretching of the back band (each set 60s of static streching). The rest time between series was 45 s. The intervention lasted 6 weeks. Receives: Other: Training - static streching |
What is being measured
The primary outcome is the main question the study is designed to answer.
Flexibility
Flexibility was assessed using a modified stand-and-reach test. The participants stood with their feet shoulder-width apart and knees fully extended, then performed a forward bend, reaching as far as possible while maintaining straight legs. To measure the extent of their reach, a custom-built box was used. The box had the following dimensions: a length of 40 cm, a width of 45 cm, and a height of 35 cm. Each participant performed the test once. The same test was repeated after the 6-week intervention period to determine any improvements in flexibility.
Measured: From registration to completion of the study, the duration is up to 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 May 2025
- Study start25 Mar 2025
- Primary completion5 Aug 2025
- Study completion6 Aug 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Static StretchingStudies of the same condition, open and under way.
- 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
- Screening
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 300 participants (actual)
Sponsor and investigators
- Lead sponsor
- Józef Piłsudski University of Physical Education
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Michał Kaczorowski, Józef Piłsudski University of Physical Education
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06960590
- Sponsor's protocol ID
- SKE.0030.3.2025
- Status last verified
- Aug 2026
- First submitted
- 14 Apr 2025
- Last updated
- 11 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Shadmehr A, Hadian MR, Naiemi SS, Jalaie S. Hamstring flexibility in young women following passive stretch and muscle energy technique. J Back Musculoskelet Rehabil. 2009;22(3):143-8. doi: 10.3233/BMR-2009-0227.
PubMed 20023343Thomas E, Bianco A, Paoli A, Palma A. The Relation Between Stretching Typology and Stretching Duration: The Effects on Range of Motion. Int J Sports Med. 2018 Apr;39(4):243-254. doi: 10.1055/s-0044-101146. Epub 2018 Mar 5.
PubMed 29506306
Study at a glance
From the registry record, last updated by the sponsor on 11 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Determining the Minimal Effective Dose of Static Stretching for Increasing Range of Motion in Adults
- ClinicalTrials.gov ID
- NCT06960590
- Acronym / sponsor ID
- SKE.0030.3.2025
- Conditions
- Static Stretching
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 300 participants (actual)
- Lead sponsor
- Józef Piłsudski University of Physical EducationUniversity, hospital or other
- Study start
- 25 Mar 2025 (actual)
- Primary completion
- 5 Aug 2025 (actual)
- Study completion
- 6 Aug 2025 (actual)
- First posted
- 7 May 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.
The study is planned to be conducted in 2025. The methods used in the study are non-invasive methods. The study groups will perform 1 to 3 static stretching sessions per week. The number of series per session will be from 1 to 3. The static stretching time of the back band in the series will be from 20 s to 60 s. The total stretching time per week will be from 45 s to 135 s. The break between series will be 45 s, and the duration of the intervention will be from 6 to 8 weeks. During stretching, the subject maintains a maximum bend with straight knee joints for a specified time. Before starting the study, participants will undergo a toe-to-floor test to assess the flexibility of the back band. The test will be repeated after the intervention. The aim of the study is to determine the minimum effective dose of static stretching. Currently, anecdotal evidence suggests that this dose is 90 seconds of static stretching per week.
The study does not involve any likelihood of harm to study participants as a result of participating in the study.
Study design
- Primary purpose
- Screening
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Streching group | Experimental | Other: Training - static strechingThe group performed one training session per week consisting of 2 sets of static stretching (each set 45s of static streching) |
| Control group | No intervention | –Only tests were performed in the group, no intervention was introduced |
| Static streching group 2 | Experimental | Other: Training - static strechingThe intervention group performed one training session per week. Each training session consisted of 2 series of static stretching of the back band (each set 60s of static streching). The rest time between series was 45 s. The intervention lasted 6 weeks. |
Who may qualify
- Ages
- 18 to 25 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Age over 18 years,
- No lower limb injuries, no spinal injuries and no craniocerebral injuries in the last 6 months,
- No lower limb surgeries, no spinal surgeries and no central nervous system surgeries in the last 6 months,
Key exclusion criteria (3 listed)
- Age under 18 years
- Injuries to the lower limbs, spine or craniocerebral injuries within the last 6 months,
- Surgical procedures to the lower limbs, spine or surgical procedures to the central nervous system within the last 6 months,
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 |
|---|---|---|
| Training - static strechingThe intervention group performed one training session per week. Each training session consisted of 2 series of static stretching of the back band. The rest time between series was 45 s. The intervention lasted 6 weeks. | Other | Static streching group 2, Streching group |
Primary outcome
Flexibility
Time frame: From registration to completion of the study, the duration is up to 8 weeks
Flexibility was assessed using a modified stand-and-reach test. The participants stood with their feet shoulder-width apart and knees fully extended, then performed a forward bend, reaching as far as possible while maintaining straight legs. To measure the extent of their reach, a custom-built box was used. The box had the following dimensions: a length of 40 cm, a width of 45 cm, and a height of 35 cm. Each participant performed the test once. The same test was repeated after the 6-week intervention period to determine any improvements in flexibility.
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 11 Aug 2026.
- Background: PubMed 20023343Shadmehr A, Hadian MR, Naiemi SS, Jalaie S. Hamstring flexibility in young women following passive stretch and muscle energy technique. J Back Musculoskelet Rehabil. 2009;22(3):143-8. doi: 10.3233/BMR-2009-0227.
- Background: PubMed 29506306Thomas E, Bianco A, Paoli A, Palma A. The Relation Between Stretching Typology and Stretching Duration: The Effects on Range of Motion. Int J Sports Med. 2018 Apr;39(4):243-254. doi: 10.1055/s-0044-101146. Epub 2018 Mar 5.
- Related InfoLink provided by the sponsor.
- 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 Training - static streching in people with Static Stretching, run by Józef Piłsudski University of Physical Education at 1 site in Poland.
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 3 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 11 Aug 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 Poland. 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 (time frame: From registration to completion of the study, the duration is up to 8 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06960590, which also lists 2 linked publications.
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 11 Aug 2026.