There is evidence suggesting that patients with mechanical neck pain exhibit higher activity of the superficial neck flexor muscles during the execution of the cranio-cervical flexion test. In addition, some studies have reported the presence of active trigger points in the neck flexor and extensor muscles. Since preliminary evidence suggests that trigger points can affect motor control behaviour, it is possible that management of these trigger points with dry needling could be effective for improving muscle activity during low-load activities, such as the cranio-cervical flexion test. Therefore, the aim of this study will be to investigate the effects on electromyographical activity, pressure pain thresholds and cervical range of motion after the application of dry needling over active TrPs in the upper trapezius muscle in patients with mechanical neck pain.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
50
Patients will receive dry needling over active trigger points in the upper trapezius muscle
Patients will receive a manual compression for 30seconds over active trigger points in the upper trapezius muscle
Cesar Fernandez-de-Las-Peñas
Alcorcón, Madrid, Spain
Changes in electromyographic activity of the neck superficial flexor muscles before and after the intervention
Bipolar surface EMG will be recorded with pairs of electrodes positioned 20mm apart and fixed firmly with an adhesive tape bilaterally over the sternocleidomastoid, the anterior scalene, the upper trapezius and the splenius capitis muscles.
Time frame: Baseline and 5 minutes after treatment
Changes in neck pain intensity with a numerical pain rate scale before and after the intervention
A Numerical Pain Rate Scale (NPRS, 0-10) will be used to assess spontaneous neck pain intensity
Time frame: Baseline and 5 minutes after treatment
Changes in widespread pressure pain sensitivity before and after the intervention
Pressure pain thresholds will be assessed over C5/C6 zygapophyseal joints, second metacarpal, and tibialis anterior muscle
Time frame: Baseline and 5 minutes after treatment
Changes in cervical range of motion before and after the intervention
Active cervical range of motion will be assessed with a Cervical Range of Motion (CROM) device in all cervical motions
Time frame: Baseline and 5 minutes after treatment
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