Neural Glide Technique on the Sciatic Nerve and the Passive Stretching Technique in the Short Hamstring Muscles

Study Overview
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Brief Summary
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The project consists of studying the differences between neural gliding techniques of the sciatic nerve and passive stretching of the hamstring muscles in football players.

Detailed Description
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Study of hamstring shortening in football players through passive muscle stretching and the use of the neurodynamic technique of longitudinal sliding of the sciatic nerve.

Official Title
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Differences Between the Effects of the Neural Glide Technique on the Sciatic Nerve and the Passive Stretching Technique in the Short Hamstring Muscles

Conditions
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Hamstring Muscles, Sciatic Nerve, Flexibility

Intervention / Treatment
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* Other: Stretching of the hamstring muscles.
* Other: Neural slippage of the sciatic nerve.
* Other: Passive upper limb mobilisations.


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: Footballers with shortening of the hamstring musculature. Age between 16 and 18 years. Subjects who agree to participate in the study. Exclusion criteria: Subjects with significant nerve involvement. Subjects with scars or wounds affecting the assessment. Subjects with muscle injuries in the lower limb. Subjects with herniated discs or chronic acute low back pain. Subjects with pain or paresthesia in the lower limbs.

Ages Eligible for Study
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Minimum Age: 16 Years
Maximum Age: 18 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Two intervention groups. One control group.
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Passive hamstring stretch.<br>Manual stretching of the hamstring muscles using the technique proposed by Henri Neiger. | Other: Stretching of the hamstring muscles.<br>* Passive stretching of the hamstring muscles.<br>|
| Experimental: Longitudinal slippage of the sciatic nerve.<br>Neurodynamic technique described by David Butler and Michael Shacklock. | Other: Neural slippage of the sciatic nerve.<br>* Neurodynamic technique on the sciatic nerve.<br>|
| Active Comparator: Passive upper limb mobilisations.<br>Control group. Passive mobilisation of the upper limbs. | Other: Passive upper limb mobilisations.<br>* Passive mobilisations performed on the upper limbs used as a placebo.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Differences between passive stretching of the hamstring muscles and longitudinal sliding of the sciatic nerve. | The degree of elasticity of the hamstring musculature will be measured using the Goniometer by placing the hip in 90 degrees flexion and measuring the extension in degrees of the knee. A pre-test and post-test measurement will be taken. | One month. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Hamstring muscles, Sciatic nerve, Flexibility