Objectives: To evaluate the clinical efficacy of using a manual inhibition technique for the suboccipital muscles compared with the use of the so-called INYBI tool in individuals with chronic non-specific neck pain, and the compare the results of using both approaches on pain relief, cervical range of motion neck and vertical maximum mouth opening. Design: Quantitative, experimental, longitudinal, prospective, and double blinded study. Subjects: Patients between 18 and 40 years, with chronic non-specific neck pain of at least 3 months of evolution. Methods: The experimental group will undergo a 5 minutes intervention for the suboccipital muscles using the INYBI tool. The control group will receive a 5 minutes of treatment involving the suboccipital muscles manual inhibition technique.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
58
Patients will lie down in supine position so that the INYBI tool will contact the suboccipital muscles at the posterior arch of the atlas. The therapist will adapt the height of the tool for each individual. All patients will use the softest head of the device. A 50Hz vibration speed will be set sup during 5 minutes.
Patients will lie down in supine position.The therapist will be seated at the head of the treatment table. The therapist will keep the metacarpophalangeal joints in a flexed position, while therapists fingertips of both hands will contact with the suboccipital muscles at the posterior arch of the atlas.
University of Sevilla
Seville, Spain
Pressure pain threshold (PPT) in the evaluated muscles. The PPT levels will be evaluated in Kilograms / cm2
PPT levels, defined as the minimum necessary pressure to evoke pain will be evaluated using a handheld electronic pressure algometer.
Time frame: From baseline to immediately after treatment.
Active cervical range of movement (ROM). The range of movement will be assessed in degrees
Flexion, extension, left and right side flexion, and left and right rotation will be assessed using a digital inclinometer.
Time frame: From baseline to immediately after treatment.
Pain free vertical mouth opening. This outcome will be evaluated in centimeters.
Maximum pain free vertical mouth opening will be assessed using a digital caliper that will place between the incisors 11, 21, 31 y 41.
Time frame: From baseline to immediately after treatment.
Atlas rotation ROM, assessed in degrees
The atlas bone left and right rotation ROM will be assessed using the flexion-rotation test. For this test, with the participant in supine position, the maximum mobility in head rotation while keeping maximum passive neck flexion will be assessed
Time frame: From baseline to immediately after treatment.
Self-reported pain intensity
Self-perceived pain intensity will be evaluated during all active cervical movements by a 0 to 10 Visual Analogue Scale (VAS), where 0 denotes no pain at all, and 10 denotes the maximum possible pain
Time frame: From baseline to immediately after treatment.
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