Hypothesis The application of intramuscular electrostimulation will be more effectiveness
than the dry needling in myofascial trigger points treatment.
To determine the effectiveness of intramuscular electrostimulation in the treatment of
trigger points of the levator scapula muscle for the improvement of pain in mechanical
Participants: Subjects with diagnosed of myofascial pain syndrome in cervical region and
active trigger points in levator scapulae muscle, randomly assigned to experimental or
Intervention: Control group: one session of dry needling in active trigger points;
experimental group: one session of intramuscular stimulation in active trigger points.
Main Outcomes Measures: Pain, pressure pain threshold (PPT), active cervical range of motion
and strength muscle . The measures will be taken before, after and one week after the