Hip Abduction and Adduction During Neurodynamic Stretching
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Maximal neurodynamic flossing.
- Who it may be relevant to
- Registry conditions: Stretching, Control Condition. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- France
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
The Acute Effects of Neurodynamic Stretching on the Shear Wave Velocity: the Effects of Hip Adduction and Abduction
Overview
Neurodynamic mobilization techniques are widely applied in rehabilitation and physiotherapy to enhance the mobility and function of peripheral nerves. Two main approaches are distinguished : Nerve tensioning and nerve flossing. They both involve proximal and distal joint movements to induce greater neural sliding while avoiding excessive tensile stress. However, contradictory findings following neurodynamic stretching highlighted the current lack of consensus regarding the position that should be used. Moreover, neurodynamic techniques are of interest for patients, it appeared it could also be applied in healthy individuals and more particularly in athletes. Accordingly, the primary objective of the present study was to determine the immediate effect of two hip positions (adduction vs. abduction) during neurodynamic flossing techniques on the sciatic nerve and hamstring tissues using the shear wave elastography (SWE, a form of ultrasonography).
Detailed description
Neurodynamic mobilization techniques are frequently applied in rehabilitation settings to enhance the mobility and function of peripheral nerves, particularly in the management of neuropathic pain such as carpal tunnel syndrome, radiculopathies, or sciatica. Two main approaches are distinguished. Nerve tensioning involves maintaining the nerve stretched at the end of the joint range of motion with relatively limited excursion. It is similar to a static stretching intervention but with distal (ankle) and proximal (cervical) tensions. Nerve flossing (also termed gliding or sliders), consists of alternating proximal and distal joint movements to induce greater neural sliding while avoiding excessive tensile stress. Both techniques appear efficient. However, contradictory findings following neurodynamic stretching highlighted the current lack of consensus regarding the angular position that could be used. For instance, hip rotations or hip adduction could impact muscle or nerve tissue changes, particularly in healthy tissues. Moreover, neurodynamic techniques are of interest for patients, it appeared it could also be applied in healthy individuals and more particularly in athletes. Performed in patients, healthy or athletes, no study has compared different hip positions. Accordingly, the primary objective of the present study was to determine the immediate effect of two hip positions (adduction vs. abduction) during neurodynamic flossing techniques on the sciatic nerve and hamstring tissues using the shear wave elastography (SWE, a form of ultrasonography). This method has been shown reliable to provide non-invasive real-time assessments of soft tissues elastic properties.
Interventions
- Other Maximal neurodynamic flossing
Neurodynamic flossing was applied at pain threshold on hamstring muscles and repeated 5 times during 60s at the point of pain. During the neurodynamic conditions, head and ankle movement permitted to mobilize nerve tissues. Flossing is the alternation of these movements every 2 seconds.
Primary outcome measures
- Nerve shear wave velocity using elastography in neutral position [Time frame: Before the intervention and at the end (immediately after) the intervention]
Secondary outcome measures (10)
- Nerve shear wave velocity using elastography in experimental position [Time frame: Before the intervention and at the end (immediately after) the intervention]
- Muscle shear wave velocity using elastography in neutral position [Time frame: Before the intervention and at the end (immediately after) the intervention]
- Muscle shear wave velocity using elastography in the experimental position [Time frame: Before the intervention and at the end (immediately after) the intervention]
- Hamstring force [Time frame: Before the intervention and at the end (immediately after) the intervention]
- Biceps femoris electromyographic activity [Time frame: Before the intervention and at the end (immediately after) the intervention]
- Semitendinosus electromyographic activity [Time frame: Before the intervention and at the end (immediately after) the intervention]
- passive knee extension [Time frame: Before the intervention and at the end (immediately after) the intervention]
- Global flexibility [Time frame: Before the intervention and at the end (immediately after) the intervention]
- Slump test [Time frame: Before the intervention and at the end (immediately after) the intervention]
- discomfort [Time frame: At the end (immediately after) the intervention]
Eligibility criteria
Inclusion criteria
- healthy
- physical active
- no injuries (lower limb or back pain) in the past 3 months
Exclusion criteria
- Specific lower limb (hamstring) injuries in the past 2 years
- Not restraining activity 24h before participation
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Randomized
- Model
- Crossover
- Masking
- Single blind
- Primary purpose
- Other
Study locations
France · 1 center
- Universite Bourgogne Europe - faculty of sports sciences — Dijon
Identifiers
NCT: NCT07350434 · CEP2601