This study aims to measure the effects of spinal manipulation on Chronic Spinal Pain by assessing Muscle Mechanical Properties (MMPs) using MyotonPRO®, Mechanical Perception Threshold (MPT) using Von Frey monofilaments, and Pressure Pain Threshold (PPT) using an algometer. Participants will be randomly assigned to either spinal manipulation or placebo groups to compare effects on MMPs, MPT, and PPT. Assessments will occur at three time points: baseline, immediately post-intervention (real or simulated), and 24 hours post-intervention. This research targets individuals with chronic spinal pain, providing insights into the potential benefits of spinal manipulation in managing this condition.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
34
A high-velocity low-amplitude spinal manipulation at the L5 level will be performance by means of the lumbar roll technique, with the subject in right lateral decubitus.
Simulated manipulation intervention, in the same position as in the Intervention Group, performance in right lateral decubitus with the left leg flexed and the left foot resting on the right popliteal fossa. Without stretching the paravertebral tissues, the participant will remain for approximately 20 seconds without receiving manual impulse.
Physiobalance
Córdoba, Spain
Muscle mechanical propierties
The measurements will be performed with the MyotonPro®. The subject will be positioned in prone position with both upper limbs around the body. They will be asked to breathe apnea for five seconds after exhaling to reduce the abdominal influence on the test. Measurements at the lumbar level will be performed by positioning the MyotonPro® probe perpendicular to the muscle belly of the erector spinae, 2.5 cm from the midline of the spinous process of L5. A measurement of the tibialis anterior will assess the effect of the remote manipulation. For this purpose, the subject will be positioned in supine decubitus with the lower limb in extension. A point will be located on the tibialis anterior muscle, three finger traverses from the crest of the tibia in a caudal direction.
Time frame: From enrollment to the end of treatment at 24 hours
Pressure pain threshold
An Algometer Commander™ JTECH will be used. Prior to the measurements, the subject will be familiarized with the evaluation by taking three measurements in the tenar region of the hand. During this phase, the subject will be asked to indicate, with eyes closed, the moment in which he perceives the painful sensation. The test will consist of a combination of three measurements administered to each muscle, with an interval between measurements of 3 to 5 seconds. The pressure stimulation will be applied with an algometer, gradually increasing the pressure by 0.5 kg per second until the subject manifests pain. The mean pressure at which the subject manifested pain will be calculated from these three measurements. The algometer will be placed perpendicular to the muscle bellies, and the subject will maintain the same position as in the measurement of the muscle mechanical propierties. The evaluation locations will be the L5 spinal Level and the tibialis anterior (bilaterally)
Time frame: From enrollment to the end of treatment at 24 hours
Mechanical perception threshold
It will be evaluated by means of Von Frey monofilaments, which will be applied perpendicularly to the cutaneous surface, with ascending diameter consecutively until the patient reports tactile perception. Prior to the measurements, the subject will be familiarized with the evaluation by taking three measurements in the tenar region of the hand. During this phase, the subject will be asked to indicate, with eyes closed, the moment in which he perceives the pressure sensation. The evaluation sites will be the same as in the MMPs: L5 level. Anterior tibial (bilaterally).
Time frame: From enrollment to the end of treatment at 24 hours
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