Effect of Dry Needling on Surface Electromyographic Activity in Latent Trigger Points

University of Castilla-La Mancha46 enrolled

Overview

Brief summary: The purpose of this study is to determine the effect of Dry Needling (DN) on electromyographic activity in different situations at the latent trigger point (LTrP) point of the upper trapezius. Randomized controlled trial, in parallel with the crossover control design. Two groups with LTrP in the upper trapezius, and the DN group or the Sham-Dn group will be randomly selected.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Trigger Point Pain, Myofascial

Interventions

Intervention-Dry NeedlingDEVICE

Deep Dry Needling into the site of the latent TriggerPoint of the upper trapezius muscle. 1 session in upper trapezius muscle moving the needle up and down ten times.

Control-Dry NeedlingDEVICE

Sham Dry Needling into the site of the latent Trigger Point of the upper trapezius muscle with non-penetrating needles

Eligibility

Sex: ALLMin age: 18 YearsMax age: 30 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Age between 18 and 30 years * The presence of LTrP in the middle third of the upper trapezius muscle onthe dominant side * Being able to provide written informed consent * Being able to follow instructions and realize clinical tests Exclusion Criteria: * Any pharmacological therapeutic * Any medical treatment or physical therapies at cervical region during the 6-month before this study * Any diagnosed health problem * Any history of head and upper extremity surgery or trauma * Any red flags to DN, (ie: metabolic diseases, pregnancy, kinesiophobia,Infection, cancer)• Absence of recurrent history of neck pain * No neck pain symptomatology the previous 6 months * Cervical disk herniation

Locations (1)

Performance and Sport Rehabilitation Laboratory

Toledo, Spain

Outcomes

Primary Outcomes

Changes in resting surface EMG activity (amplitude, RMS)

EMG activity (RMS) of the upper trapezius after dry needling or sham needling as assessed by the EMG ME 6000 TE(Mega Electronics, Kuopio, Finland). Resting EMG activity will be expressed as a percentage of maximal reference contractions of the upper trapezius (% reference contractions).

Time frame: Baseline, at 30 minutes after treatment, at 24 hours after treatment, at 72 hours after treatment

Secondary Outcomes

Changes in resting surface EMG activity (Median frequency, MF)

EMG activity (RMS) of the upper trapezius after dry needling or sham needling as assessed by the EMG ME 6000 TE(Mega Electronics, Kuopio, Finland). EMG median frequency will be used to determine the endurance of the upper trapezius. The EMG median frequency will be measured in Hertz (Hz).

Time frame: Baseline, at 30 minutes after treatment, at 24 hours after treatment, at 72 hours after treatment

Changes in submaximal contrations surface EMG activity of upper trapezius (amplitude, RMS)

EMG activity (RMS) of the upper trapezius after dry needling or sham needling as assessed by the EMG ME 6000 TE(Mega Electronics, Kuopio, Finland). EMG activity of submaximal contractions will be expressed as a percentage of submaximal reference contractions of the upper trapezius (% reference contractions).

Time frame: Baseline, at 30 minutes after treatment, at 24 hours after treatment, at 7submaximal contractions EMG activity will be expressed as a percentage of maximal reference contractions of the upper trapezius (% reference contractions).2 hours after treatment

Changes in submaximal contrations surface EMG activity of upper trapezius (Median frequency, MF)

Data from ClinicalTrials.gov

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