Hip Abduction and Adduction During Neurodynamic Stretching

NCT07350434 | Recruiting

• 1 other identifier: CEP2601
• Study Type: interventional
• Target: 12
• Locations: 1 country
• Sites: 1

Brief Summary

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).

Conditions

Stretching; Control Condition

Keywords

stretching; stiffness; nerve; muscle; flexibility; hip

Outcome Measures

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).

  Before the intervention and at the end (immediately after) the intervention

Secondary Outcomes (10)

• Nerve shear wave velocity using elastography in experimental position

  Before the intervention and at the end (immediately after) the intervention

• Muscle shear wave velocity using elastography in neutral position

  Before the intervention and at the end (immediately after) the intervention

• Muscle shear wave velocity using elastography in the experimental position

  Before the intervention and at the end (immediately after) the intervention

• Hamstring force

  Before the intervention and at the end (immediately after) the intervention

• Biceps femoris electromyographic activity

  Before the intervention and at the end (immediately after) the intervention

Study Arms (6)

No intervention (neutral)

NO INTERVENTION

No intervention with measurements in neutral position

No intervention (adduction)

NO INTERVENTION

No intervention with measurements in adduction position

No intervention (abduction)

NO INTERVENTION

No intervention with measurements in abduction position

Neurodynamic (neutral)

ACTIVE COMPARATOR

The hip was positioned neutral (alignment between the lower limb and the trunk).

Other: Maximal neurodynamic flossing

Neurodynamic (adduction)

EXPERIMENTAL

The hip was positioned in adduction and the neurodynamic stretch was applied.

Other: Maximal neurodynamic flossing

Neurodynamic (abduction)

EXPERIMENTAL

The hip was positioned in abduction and the neurodynamic stretch was applied.

Other: Maximal neurodynamic flossing

Interventions

Maximal neurodynamic flossing OTHER

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.

Neurodynamic (abduction); Neurodynamic (adduction); Neurodynamic (neutral)

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• healthy
• physical active
• no injuries (lower limb or back pain) in the past 3 months

You may not qualify if:

• Specific lower limb (hamstring) injuries in the past 2 years
• Not restraining activity 24h before participation

Sponsors & Collaborators

• University of Burgundy: lead

Study Sites (1)

Universite Bourgogne Europe - faculty of sports sciences

Dijon, France

RECRUITING

Study Officials

• Nicolas Babault

  universite bourgogne europe

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Nicolas Babault

CONTACT

+33380396743; nicolas.babault@ube.fr

Carole Cometti

CONTACT

+33389396789; carole.cometti@ube.fr

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: OTHER
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Prof

Study Record Dates

• First Submitted: January 9, 2026
• First Posted: January 20, 2026
• Study Start: February 1, 2026
• Primary Completion: February 10, 2026
• Study Completion (Estimated): June 30, 2026
• Last Updated: April 28, 2026

Record last verified: 2026-04

Data Sharing

• IPD Sharing: Will share

Locations

FR (1)