About this trial
This study aims to compare the effects of two different chiropractic techniques, Diversified and Drop Table, on pain levels, cervical joint range of motion, and neck muscle strength in individuals with non-specific neck pain.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Sign a voluntary informed consent form.
Be between 18 and 65 years of age.
Have previously consulted an orthopedist or physical therapist for neck pain.
Have no contraindications to chiropractic interventions.
Disqualifiers
Are under 18 or over 65 years of age.
Have experienced cervical trauma within the last month.
Have any systemic illness.
Have any contraindication for chiropractic intervention (e.g., brain tumor, cervical fracture).
Trial design
Parallel
Treatments tested in this trial
Drop Table Technique
Other interventionThe Drop Table Technique is a chiropractic intervention that utilizes a segmented treatment table with adjustable sections that can be elevated slightly and then dropped. During the procedure, a high-velocity, low-amplitude (HVLA) thrust is applied while the specific segment of the table drops slightly in coordination with the thrust. This technique aims to reduce the resistance experienced during the adjustment and to enhance the mechanical effect on targeted spinal joints. In this study, the Drop Table Technique will be specifically applied to the cervical spine to address mechanical neck pain. All applications will be performed by a licensed chiropractor using standardized positioning and adjustment protocols to ensure consistency across sessions.
Cervical Spine Manipulation
Other interventionCervical spinal manipulation (SM) will be applied with the participant supine to restrictions found on motion palpation, following the technique described by Bergmann and Peterson. The participant's head and neck will be simultaneously rotated and laterally flexed over the contact point-specifically, the posterior supramastoid groove or zygomatic arch (C0-C1), the posterior aspect of the transverse process (C1-C2), or the posterior articular pillar of superior vertebrae (C2-C7)-to the end of passive range of motion (ROM). Subsequently, a high-velocity, low-amplitude thrust will be delivered in the direction of restricted movement. Participants with greater ROM restriction in the lateral plane will receive more laterally-to-medially directed thrusts. Participants with more restriction in rotation will be given thrusts in the direction of restricted axial rotation, and those with more restriction in extension will receive more anteriorly directed thrusts.
Treatment groups
Trial outcomes
Primary outcomes
McGill Pain Questionnaire (MPQ)
Pain will be assessed using the full version of the McGill Pain Questionnaire (MPQ), which evaluates both the sensory, affective, evaluative, and miscellaneous components of pain. The MPQ includes: A list of 78 pain descriptors grouped into 20 categories, The Pain Rating Index (PRI), derived from the sum of rank values for selected descriptors, A Present Pain Intensity (PPI) score, rated on a scale of 0 (no pain) to 5 (excruciating), A Visual Analog Scale (VAS) for overall pain intensity. The primary outcome will be the change in total PRI and PPI scores from baseline to the end of the 4-week intervention. Measure Type: Ordinal and Continuous (PRI: rank-based score; PPI: 0-5 scale) Unit of Measure: Score (no unit)
Secondary outcomes
Cervical Range of Motion
Measured in degrees using a goniometer in all planes of cervical motion.
Isometric Neck Muscle Strength
Isometric neck muscle strength in flexion, extension, and right and left lateral flexion will be manually assessed using a microFET2 handheld dynamometer (Hoggan Health Industries).
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
SEFA HAKTAN HATIK
Lead sponsor
Sinop University
Sponsor institution
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