Healthy AdultsNCT04146597
Short-term Effects of Active Post-training Slider Neural Mobilization
A study testing Neural mobilization in people with Healthy Adults, run by University of Brasilia at 1 site in Brazil.
Trial summary
Jiu Jitsu is a martial art that consists of various techniques that aim to place the opponent in submission. It is essentially a ground fight that requires large movement variety, among which flexibility is a substantial physical aptitude, required to perform specific positions of attack or defence, especially… Read more about this study
- Who is it for?
- Ages 18 to 59 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy Adults
- What is being tested?
- Neural mobilization
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 22 participants
- Where
- 1 siteBrazil
- Study dates
- 1 Feb 2024to 30 Mar 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 59 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy adults of regular practitioners of Jiu Jitsu;
- Aged between 18 and 59 years;
- Both sexes.
Who cannot join
- Straight Leg Raise (SLR) test > 75º;
- Hamstrings injury in the previous three months;
- History of any neurological disorder (such as sensory deficits and irradiated pain) or orthopaedics (such as soft tissue or bone injuries) that affected a lower extremity;
- Positive neural tension test (uni or bilateral);
- Fracture in a lower extremity with surgical treatment history in the previous12 months and with conservative treatment in the previous 6 months;
- Herniated lumbar disc diagnosis.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Short-term Effects of Active Post-training Slider Neural Mobilization on Hamstring Flexibility in Jiu Jitsu Practitioners: a Quasi-experimental Study
Jiu Jitsu is a martial art that consists of various techniques that aim to place the opponent in submission. It is essentially a ground fight that requires large movement variety, among which flexibility is a substantial physical aptitude, required to perform specific positions of attack or defence, especially flexibility of the thoracolumbar spine and hamstrings. The literature reports that abnormal posterior lower limb neurodynamics may influence hamstring extensibility and muscle length, and lead to changes in perception of stretch and pain. The objective of the present study is to evaluate the effect of NM, using sliding techniques of the sciatic nerve, immediately after Jiu Jitsu training, on HM flexibility of Jiu Jitsu practitioners. The hypothesis is that NM sliders applied immediately after training would be as effective as an isolated intervention, as demonstrated in soccer players.
- Conditions
- Healthy Adults
- Being tested
- Neural mobilization
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Neural mobilizationOther
Neural mobilization (NM) is a physiotherapy method aimed at restoring the dynamic balance between the relative movement of neural tissues and surrounding mechanical interfaces, and different techniques are used for the treatment of various compression syndromes as well as other pain conditions, such as back and neck pain (Basson et al., 2017; Ellis and Hing, 2008). The main techniques used are neurodynamic sliders and neurodynamic tensioners, with the tensioning techniques being considered the more aggressive approach, in which the increase in nerve length occurs (Silva et al., 2014). The neurodynamic sliders techniques are gentle maneuvers as they involve nerve lengthening at one joint and simultaneous reduction in its length at an adjacent joint in order to produce sliding movements of neural structures relative to adjacent tissues (Efstathiou et al., 2015).
| Study group | Role | What they receive |
|---|---|---|
| Neural mobilization | Experimental | The intervention is always performed after Jiu Jitsu practice and at the training site itself. Neural mobilization consisted of the execution of a sciatic nerve sliding technique in three sets of one minute for each lower limb with an interval of one minute between sets, twice a week, for five consecutive weeks, totaling 10 interventions (Garber et al., 2011). The order of the first lower limb to be submitted to the intervention is not standardized, being at the discretion of the subjects. Receives: Other: Neural mobilization |
What is being measured
The primary outcome is the main question the study is designed to answer.
Passive Knee Extension Test (PKE)
consisting of passive knee extension with hip and knee stabilized at 90º, with the contralateral limb stabilized at the middle third of the thigh and leg by another researcher, and upper limbs along the trunk. From this position passive extension of the knee was performed by the researcher until the patient communicated the sensation of discomfort without pain in the tested hamstrings. This test shows intra-examiner reliability of 0.99.
Measured: 5 week follow up.
Straight leg raise test (SLR):
consisting of raising the limb through passive hip flexion, keeping the knee extended and the subject in the dorsal decubitus position on the mat with both legs extended and upper limbs along the trunk. The assessment of the hip angle was performed by flexing the hip and maintaining the extension of the knee and ankle free, with the contralateral limb stabilized in the middle third of the thigh and leg by another researcher. It is reported that the SLR has a dual function, besides measuring the flexibility of hamstrings it also accesses the sciatic nerve and can test its mobility (Rolls and George, 2004).
Measured: 5 week follow up.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 Oct 2019
- Study start1 Feb 2024
- Primary completion30 Nov 2024
- Study completion30 Mar 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 Healthy AdultsStudies 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
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 22 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Brasilia
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Wagner Rodrigues Martins, University of Brasilia
- Investigators
- Wagner Martins, Principal investigator, University of Brasilia
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04146597
- Sponsor's protocol ID
- Slider NM
- Status last verified
- Apr 2025
- First submitted
- 28 Oct 2019
- Last updated
- 17 Apr 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Castellote-Caballero Y, Valenza MC, Martin-Martin L, Cabrera-Martos I, Puentedura EJ, Fernandez-de-Las-Penas C. Effects of a neurodynamic sliding technique on hamstring flexibility in healthy male soccer players. A pilot study. Phys Ther Sport. 2013 Aug;14(3):156-62. doi: 10.1016/j.ptsp.2012.07.004. Epub 2012 Nov 8.
PubMed 23142014Andreato LV, Lara FJD, Andrade A, Branco BHM. Physical and Physiological Profiles of Brazilian Jiu-Jitsu Athletes: a Systematic Review. Sports Med Open. 2017 Dec;3(1):9. doi: 10.1186/s40798-016-0069-5. Epub 2017 Feb 13.
PubMed 28194734
Study at a glance
From the registry record, last updated by the sponsor on 17 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Short-term Effects of Active Post-training Slider Neural Mobilization on Hamstring Flexibility in Jiu Jitsu Practitioners: a Quasi-experimental Study
- ClinicalTrials.gov ID
- NCT04146597
- Acronym / sponsor ID
- Slider NM
- Conditions
- Healthy Adults
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 22 participants (actual)
- Lead sponsor
- University of BrasiliaUniversity, hospital or other
- Study start
- 1 Feb 2024 (actual)
- Primary completion
- 30 Nov 2024 (actual)
- Study completion
- 30 Mar 2025 (actual)
- First posted
- 31 Oct 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.
Jiu Jitsu is a martial art that consists of various techniques that aim to place the opponent in submission. It is essentially a ground fight that requires large movement variety, among which flexibility is a substantial physical aptitude, required to perform specific positions of attack or defence, especially flexibility of the thoracolumbar spine and hamstrings. The literature reports that abnormal posterior lower limb neurodynamics may influence hamstring extensibility and muscle length, and lead to changes in perception of stretch and pain. The objective of the present study is to evaluate the effect of NM, using sliding techniques of the sciatic nerve, immediately after Jiu Jitsu training, on HM flexibility of Jiu Jitsu practitioners. The hypothesis is that NM sliders applied immediately after training would be as effective as an isolated intervention, as demonstrated in soccer players.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Neural mobilization | Experimental | Other: Neural mobilizationThe intervention is always performed after Jiu Jitsu practice and at the training site itself. Neural mobilization consisted of the execution of a sciatic nerve sliding technique in three sets of one minute for each lower limb with an interval of one minute between sets, twice a week, for five consecutive weeks, totaling 10 interventions (Garber et al., 2011). The order of the first lower limb to be submitted to the intervention is not standardized, being at the discretion of the subjects. |
Who may qualify
- Ages
- 18 to 59 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Healthy adults of regular practitioners of Jiu Jitsu;
- Aged between 18 and 59 years;
- Both sexes.
Key exclusion criteria (6 listed)
- Straight Leg Raise (SLR) test > 75º;
- Hamstrings injury in the previous three months;
- History of any neurological disorder (such as sensory deficits and irradiated pain) or orthopaedics (such as soft tissue or bone injuries) that affected a lower extremity;
- Positive neural tension test (uni or bilateral);
- Fracture in a lower extremity with surgical treatment history in the previous12 months and with conservative treatment in the previous 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 |
|---|---|---|
| Neural mobilizationNeural mobilization (NM) is a physiotherapy method aimed at restoring the dynamic balance between the relative movement of neural tissues and surrounding mechanical interfaces, and different techniques are used for the treatment of various compression syndromes as well as other pain conditions, such as back and neck pain (Basson et al., 2017; Ellis and Hing, 2008). The main techniques used are neurodynamic sliders and neurodynamic tensioners, with the tensioning techniques being considered the more aggressive approach, in which the increase in nerve length occurs (Silva et al., 2014). The neurodynamic sliders techniques are gentle maneuvers as they involve nerve lengthening at one joint and simultaneous reduction in its length at an adjacent joint in order to produce sliding movements of neural structures relative to adjacent tissues (Efstathiou et al., 2015). | Other | Neural mobilization |
Primary outcome
Passive Knee Extension Test (PKE)
Time frame: 5 week follow up.
consisting of passive knee extension with hip and knee stabilized at 90º, with the contralateral limb stabilized at the middle third of the thigh and leg by another researcher, and upper limbs along the trunk. From this position passive extension of the knee was performed by the researcher until the patient communicated the sensation of discomfort without pain in the tested hamstrings. This test shows intra-examiner reliability of 0.99.
Straight leg raise test (SLR):
Time frame: 5 week follow up.
consisting of raising the limb through passive hip flexion, keeping the knee extended and the subject in the dorsal decubitus position on the mat with both legs extended and upper limbs along the trunk. The assessment of the hip angle was performed by flexing the hip and maintaining the extension of the knee and ankle free, with the contralateral limb stabilized in the middle third of the thigh and leg by another researcher. It is reported that the SLR has a dual function, besides measuring the flexibility of hamstrings it also accesses the sciatic nerve and can test its mobility (Rolls and George, 2004).
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 17 Apr 2025.
- Background: PubMed 23142014Castellote-Caballero Y, Valenza MC, Martin-Martin L, Cabrera-Martos I, Puentedura EJ, Fernandez-de-Las-Penas C. Effects of a neurodynamic sliding technique on hamstring flexibility in healthy male soccer players. A pilot study. Phys Ther Sport. 2013 Aug;14(3):156-62. doi: 10.1016/j.ptsp.2012.07.004. Epub 2012 Nov 8.
- Results publication: PubMed 28194734Andreato LV, Lara FJD, Andrade A, Branco BHM. Physical and Physiological Profiles of Brazilian Jiu-Jitsu Athletes: a Systematic Review. Sports Med Open. 2017 Dec;3(1):9. doi: 10.1186/s40798-016-0069-5. Epub 2017 Feb 13.
- 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.
Wagner Martins principal investigator
University of Brasilia
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Neural mobilization in people with Healthy Adults, run by University of Brasilia at 1 site in Brazil.
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 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: finished, as of the sponsor's last update on 17 Apr 2025. 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 Brazil. 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?
Passive Knee Extension Test (PKE) (time frame: 5 week follow up.). 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?
On the ClinicalTrials.gov record for NCT04146597, 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 17 Apr 2025.