Time Effect of the Pressure Release Technique Application in the Latent Myofascial Trigger Points

Study Overview
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Brief Summary
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Background: Latent myofascial trigger points (MTrPs) of the levator scapulae are high prevalent and may influence the neck and shoulder conditions. The pressure release is one of the most recommended manual therapy techniques. Objective: To determine the time effect of the pressure release technique application in the latent MTrPs of the levator scapulae muscle. Design: A three-arm (1:1:1 ratio), double-blinded, parallel, randomized clinical trial. The manual technique than us apply, be sustained digital pressure with thumbs or with the 2nd-3rd fingers on the PGM below the pain threshold and gradually increases up to a ceiling of tissue resistance (barrier), as decreases, adds more pressure. different times of sustained pressure and the number of repetitions depending on time 30 (group 1, acts as a control), 60 (group 2) and 90 seconds (group 3) shall apply.

Official Title
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Time Effect of the Pressure Release Technique Application in the Latent Myofascial Trigger Points of the Levator Scapulae

Conditions
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Myofascial Pain Syndrome

Intervention / Treatment
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* Other: Pressure release 90
* Other: Pressure release 60
* Other: Pressure release 30


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subjects with aged between 18 and 60 years. Subjects with presence of latent PGM levator scapulae muscle. Exclusion Criteria: Pregnant. Subjects with spontaneous pain. Subjects with neck or shoulder pain. Subjects with musculoskeletal injuries. Subjects with neurological problems. Fibromyalgia

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

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
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Application 90 minutes pressure release<br>Subjects will receive a pressure release technique for 90 seconds in the levator scapula muscle | Other: Pressure release 90<br>* This is a massage technique that aims is eliminate myofascial trigger points for to treat muscle pain.<br>* Other names: Compression ischemic massage technique;|
| Experimental: Application 60 minutes pressure release<br>Subjects will receive a pressure release technique for 60 seconds in the levator scapula muscle | Other: Pressure release 60<br>* This is a massage technique that aims is eliminate myofascial trigger points for to treat muscle pain.<br>* Other names: soft tissue massage;|
| Experimental: Application 30 minutes pressure release<br>Subjects will receive a pressure release technique for 30 seconds in the levator scapula muscle | Other: Pressure release 30<br>* This is a massage technique that aims is eliminate myofascial trigger points for to treat muscle pain.<br>* Other names: soft tissue massage;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain pressure threshold (PPT) | PPT is defined as the minimal amount of pressure that produce pain. The investigators will measure the muscle levator scapular tenderness. | Change from Baseline PPT at one week | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Strength muscle | The investigators will measure strength muscle with a handheld dynamometer. the subject will have to perform a movement of cervical extension resistance against. | Change from Baseline strength muscle at one week | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Myofascial Trigger Points, Liberation for Pression, Therapy Soft Tissue