Muscle TightnessNCT05554809
Unilateral Stretch Crossover Effect RCT
A study testing Strecthing in people with Muscle Tightness and Stretch, run by Luleå Tekniska Universitet at 1 site in Sweden.
Trial summary
The crossover-effect within resistance- and strength training is more or less confirmed with multiple studies showing similar results. The studies shows an increase in muscle strength within the contralateral extremity being exercised. Read more about this study
- Who is it for?
- Ages 18 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Muscle Tightness, Stretch
- What is being tested?
- Strecthing
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 69 participants
- Where
- 1 siteSweden
- Study dates
- 15 Sep 2022to 1 Jun 2023
- 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 50 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Passiv straigth leg raise < 70 degrees
- Read and understand swedish
Who cannot join
- Injuries within the hamstrings muscle past 3 month
- Disabilities within the muscloskeletal system (i.e. lower back, thoracic spine, cervikal spine, hip, knee, ankle, fot) affecting the participants life
- Neurological, inflammatoric or heart-diseases
- Nociplasic pain disorders
- Medication with possibility affecting muscle strength of flexibility
- Positive neurodynamic test of the lower extremity
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Crossover-effect of Unilateral Dynamic Versus Static Stretch of Hamstrings Muscle on Hamstrings Muscle Length - a Randomized Controlled Trial
The crossover-effect within resistance- and strength training is more or less confirmed with multiple studies showing similar results. The studies shows an increase in muscle strength within the contralateral extremity being exercised. Regarding muscle length or mobility (flexibility) the crossover-effect have not been studied.
For a person to gain an increase in muscle strength mobility training in the form of stretching and flexibility training of our skeletal muscle is a common exercise. However, the evidence are scare and there are only a few studies comparing the effect of prolonged static stretching (> 90 sec) and dynamic flexibility training as to which of these methods has the best length-enhancing effect over time.
The purpose of this study is to compare the crossover-effect of eight weeks of oneleg dynamic flexibility training versus oneleg prolonged static stretching versus a nonstretching controlgroup on mobility in the hamstring muscles in adults with reduced mobility of the hamstring muscle. The aim is also to compare the sustained effect of flexibility training between the two groups, eight weeks after completion of the intervention.
- Conditions
- Muscle Tightness, Stretch
- Being tested
- Strecthing
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
StrecthingOther
Comparing the crossover-effect of dynamic versus static stretching
| Study group | Role | What they receive |
|---|---|---|
| Dynamic stretching | Experimental | Not described Receives: Other: Strecthing |
| Static stretching | Experimental | Not described Receives: Other: Strecthing |
| Controll | Active comparator | Not described Receives: Other: Strecthing |
What is being measured
The primary outcome is the main question the study is designed to answer.
Passiv straigth leg raising
Muscle length of the hamstrings muscle will be measured via degress of hip flexion at a passive straigth leg raise of the lower extremity. One leg at a time.
Measured: 5 minutes
Active knee extension
The person will lay supine with a 90 degress of hip flexion towards a bar against the thigh. Thereafter the person will perform an active knee extensor as far as possible and the degrees of kneeflexion will be measured.
Measured: 5 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Sep 2022
- Study start15 Sep 2022
- Primary completion1 Jun 2023 (estimated)
- Study completion1 Jun 2023 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Muscle TightnessStudies 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 69 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Luleå Tekniska Universitet
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05554809
- Sponsor's protocol ID
- LuleaTU
- Status last verified
- Sep 2022
- First submitted
- 15 Sep 2022
- Last updated
- 26 Sep 2022
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 26 Sep 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Crossover-effect of Unilateral Dynamic Versus Static Stretch of Hamstrings Muscle on Hamstrings Muscle Length - a Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT05554809
- Acronym / sponsor ID
- LuleaTU
- Conditions
- Muscle Tightness, Stretch
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 69 participants (estimated)
- Lead sponsor
- Luleå Tekniska UniversitetUniversity, hospital or other
- Study start
- 15 Sep 2022 (actual)
- Primary completion
- 1 Jun 2023 (estimated)
- Study completion
- 1 Jun 2023 (estimated)
- First posted
- 26 Sep 2022 (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 crossover-effect within resistance- and strength training is more or less confirmed with multiple studies showing similar results. The studies shows an increase in muscle strength within the contralateral extremity being exercised. Regarding muscle length or mobility (flexibility) the crossover-effect have not been studied.
For a person to gain an increase in muscle strength mobility training in the form of stretching and flexibility training of our skeletal muscle is a common exercise. However, the evidence are scare and there are only a few studies comparing the effect of prolonged static stretching (> 90 sec) and dynamic flexibility training as to which of these methods has the best length-enhancing effect over time.
The purpose of this study is to compare the crossover-effect of eight weeks of oneleg dynamic flexibility training versus oneleg prolonged static stretching versus a nonstretching controlgroup on mobility in the hamstring muscles in adults with reduced mobility of the hamstring muscle. The aim is also to compare the sustained effect of flexibility training between the two groups, eight weeks after completion of the intervention.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Dynamic stretching | Experimental | Other: Strecthing |
| Static stretching | Experimental | Other: Strecthing |
| Controll | Active comparator | Other: Strecthing |
Who may qualify
- Ages
- 18 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- Passiv straigth leg raise < 70 degrees
- Read and understand swedish
Key exclusion criteria (6 listed)
- Injuries within the hamstrings muscle past 3 month
- Disabilities within the muscloskeletal system (i.e. lower back, thoracic spine, cervikal spine, hip, knee, ankle, fot) affecting the participants life
- Neurological, inflammatoric or heart-diseases
- Nociplasic pain disorders
- Medication with possibility affecting muscle strength of flexibility
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 |
|---|---|---|
| StrecthingComparing the crossover-effect of dynamic versus static stretching | Other | Controll, Dynamic stretching, Static stretching |
Primary outcome
Passiv straigth leg raising
Time frame: 5 minutes
Muscle length of the hamstrings muscle will be measured via degress of hip flexion at a passive straigth leg raise of the lower extremity. One leg at a time.
Active knee extension
Time frame: 5 minutes
The person will lay supine with a 90 degress of hip flexion towards a bar against the thigh. Thereafter the person will perform an active knee extensor as far as possible and the degrees of kneeflexion will be measured.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Sep 2022.
- Individual participant dataSharing planned: Undecided
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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 Strecthing in people with Muscle Tightness and Stretch, run by Luleå Tekniska Universitet at 1 site in Sweden.
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 2 inclusion and 6 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: status not confirmed, as of the sponsor's last update on 26 Sep 2022. 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 Sweden. 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?
Results are not available in the source record.
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?
Passiv straigth leg raising (time frame: 5 minutes). The study lists 2 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 26 Sep 2022.