Myoelectric Activity of Upper Trapezius Trigger Point

Summary

Myofascial trigger points are a muscular dysfunction at the level of the motor end-plate and the sarcoplasmic reticula that, in turn, cause a local contraction with ischemia -induced hypoxia. Along with the hypoxia, the resulting energy crisis leads to a sensation of the surrounding nociceptors . Extracorporeal shock wave therapy (ESWT) is recently considered an effective treatment for myofascial pain syndrome. It's been proved an effective in musculoskeletal disease fasciitis

. It is significant since it is a non-invasive and simple treatment, easy to apply at a large surface, and has fewer side effects with low intensity even if it requires relatively high cost, ESWT has been proved to be more effective than conventional ultrasound on MTrPs in the upper trapezius muscle and showed that ESWT is more effective

. It has been found that three sessions of ESWT significantly improved pain levels, neck disabilities, and the quality of life by reducing the number of MTrPs .

ESWT could reduce the pain of myofascial pain syndrome by pain signal alteration, promoting angiogenesis and increasing perfusion in ischemic tissues induced by sensitization of nociceptors and muscle ischemia.

Ultrasound with deep heat is used in treatment of myofascial trigger point due to the properties of achieving vasodilation, accelerating the metabolism, increasing viscoelasticity and reducing pain and muscle spasm

High power pain threshold ultrasound found to be effective in many literatures in treatment of myofascial trigger point

. Study was performed comparing effect of high power pain threshold ultrasound with conventional ultrasound proved that high power pain threshold is more effective in treating upper trapezius myofascial It was found in the treatment of MPS, HPPT US therapy could be considered as a reliable and more effective and has positive effect method than low-dose and conventional US therapies

This study will be presented as a part of ongoing study. The ongoing study investigates the effect of different intensities of ultrasound on upper trapezius trigger points. The current study will investigate the myoelectric activities of trigger points after application of high power pain threshold ultrasound

Conditions

• Trigger Point Pain, Myofascial

Interventions

DEVICE

extracorporeal shock wave and conventional treament

Extracorporeal shock wave for 700 impulses of 0.056 mJ/mm at a frequency of 10 Hz to the taut band and 300 impulses surrounding the taut band will be applied as low energy 2 sessions per week for 2 weeks The will be used as a radial type of shock wave therapy. Strengthening, stretching exercises and ischemic compression: 1. Isometric neck extensor exercise: 2. Isometric neck flexor exercise: 3. Isometric neck side bending muscle exercise: Stretching exercise: Passive stretching for the neck extensor muscles: Passive stretching of the neck side-bending muscles: Ischemic compression

DEVICE

high pain threshold ultrasound and conventional treatment for myofascial pain syndrome trigger points

will be applied in continuous mode, with the probe placed directly on the TrP and held motionless. To elicit threshold pain, the US probe will be kept static on the TrP. Intensity gradually will be increased to the level of maximum pain the patient could bear. It will be kept at that level for 3 to 4 seconds, then will be reduced to the half-intensity level for another 15 seconds. This procedure was repeated 3 times.the intensity of US will be dependent on the patient's level of pain. intensity will be applied in the range of 0.5 to 2.0 Watt per/cm2. Patients continually report their pain level and its localization and nature High-power pain threshold US will be applied 4 times, with a 3-day interval 2 sessions per week for 2 weeks . 1)Isometric neck extensor exercise2)Isometric neck flexor exercise3)Isometric neck side bending muscle exercise,Stretching exercise:Passive stretching for the neck extensor muscles ,stretching of the neck side-bending muscles,Ischemic compression

OTHER

conventional treatment for myofascial pain trigger point

Strengthening, stretching exercises and ischemic compression: 1. Isometric neck extensor exercise: 2. Isometric neck flexor exercise: 3. Isometric neck side bending muscle exercise: Stretching exercise: Passive stretching for the neck extensor muscles: Passive stretching of the neck side-bending muscles: Ischemic compression

Sponsors & Collaborators

• MTI University

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Model

FACTORIAL

Eligibility

Min Age

20 Years

Max Age

26 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2020-02-15

Primary Completion

2021-04-01

Completion

2021-04-14

Countries

• Egypt

Study Locations