Hip Abduction and Adduction During Neurodynamic Stretching
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Burgundy
About this trial
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).
Eligibility criteria
This trial accepts healthy volunteersQualifiers
healthy
physical active
no injuries (lower limb or back pain) in the past 3 months
Disqualifiers
Specific lower limb (hamstring) injuries in the past 2 years
Not restraining activity 24h before participation
Trial design
Design model
Crossover
Treatments tested in this trial
Maximal neurodynamic flossing
Other interventionNeurodynamic 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.
Treatment groups
12 Participants
are divided into 6 treatment groups6
Treatment groupsSee each treatment group below.
Group A: No intervention (neutral)No intervention 0 interventions
Group B: No intervention (adduction)No intervention 0 interventions
Group C: No intervention (abduction)No intervention 0 interventions
Group D: Neurodynamic (neutral)Active comparator 1 intervention
Group E: Neurodynamic (adduction)Experimental treatment 1 intervention
Group F: Neurodynamic (abduction)Experimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Nerve shear wave velocity using elastography in neutral position
Shear wave velocity of the sciatic nerve will be evaluated by using an ultrasound (echography) device with a specific mode called "shear wave elastography". Briefly, the ultrasound probe will deliver an ultrasound wave. The propagation speed (called '"shear wave velocity") will be measured by the same probe. The greater the velocity is, the harder the tissue is. The hip position was neutral (alignment between the lower limb and the trunk).
Time frame
Before the intervention and at the end (immediately after) the interventionSecondary outcomes
1
Nerve shear wave velocity using elastography in experimental position
Shear wave velocity of the sciatic nerve will be evaluated by using an ultrasound (echography) device with a specific mode called "shear wave elastography". Briefly, the ultrasound probe will deliver an ultrasound wave. The propagation speed (called '"shear wave velocity") will be measured by the same probe. The greater the velocity is, the harder the tissue is. The hip position was the experimental position (i.e., adduction or abduction depending on the randomisation).
Time frame
Before the intervention and at the end (immediately after) the intervention2
Muscle shear wave velocity using elastography in neutral position
Shear wave velocity of the biceps femoris muscle will be evaluated by using an ultrasound (echography) device with a specific mode called "shear wave elastography". Briefly, the ultrasound probe will deliver an ultrasound wave. The propagation speed (called '"shear wave velocity") will be measured by the same probe. The greater the velocity is, the harder the tissue is. The hip position was neutral (alignment between the lower limb and the trunk).
Time frame
Before the intervention and at the end (immediately after) the intervention3
Muscle shear wave velocity using elastography in the experimental position
Shear wave velocity of the biceps femoris muscle will be evaluated by using an ultrasound (echography) device with a specific mode called "shear wave elastography". Briefly, the ultrasound probe will deliver an ultrasound wave. The propagation speed (called '"shear wave velocity") will be measured by the same probe. The greater the velocity is, the harder the tissue is. The hip position was the experimental position (i.e., adduction or abduction depending on the randomisation).
Time frame
Before the intervention and at the end (immediately after) the intervention4
Hamstring force
Maximal torque during a maximal voluntary hamstring contraction
Time frame
Before the intervention and at the end (immediately after) the interventionSponsors and contacts
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Source ClinicalTrials.gov