Optimization of Lumbar Sensory Stimulation Parameters in Office Workers With Chronic Low Back Pain
Not yet recruitingNot applicableNCT07801729
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This study has no listed site in Canada in this snapshot. It is included as part of the worldwide chronic pain corpus.
Brief summary (from the registry)
This study aims to determine the optimal parameters of lumbar sensory stimulation in office workers with chronic nonspecific low back pain. Participants will attend two laboratory sessions. The first session will characterize baseline clinical and sensorimotor function using clinical assessments, transcranial magnetic stimulation, functional near-infrared spectroscopy during unstable sitting, inertial measurement units, decomposition electromyography, and rehabilitative ultrasound imaging. The second session will use a randomized within-participant crossover design in which participants receive eight combinations of lumbar vibration frequency, amplitude, and direction while bilateral primary somatosensory cortex hemodynamic responses are continuously measured using functional near-infrared spectroscopy. The primary objective is to identify vibration parameters that produce a favorable and consistent cortical response while meeting predefined comfort, safety, and technical criteria.
Study details
- Official title
- Effects of Different Lumbar Vibration Parameters on Somatosensory Cortical Responses in Office Workers With Chronic Nonspecific Low Back Pain: A Randomized Crossover Study
- Conditions
- Interventions
- Device: Lumbar sensory stimulation
- Sponsor
- Mahidol University
- Start date
- 2027-01-01
- Primary completion
- 2027-12-31
- Sex
- All
- Age range
- from 20 Years to 60 Years
- Results posted
- No results posted in this snapshot
- Countries
- Thailand
- Total sites listed
- 1
Eligibility criteria
Show eligibility criteria (verbatim from the registry)
Inclusion Criteria: * Office workers who currently sit for at least 6 hours per workday. * Age 20-60 years. * Chronic nonspecific low back pain for at least 3 months. * Current pain intensity of at least 2/10 on the Numeric Pain Rating Scale. Exclusion Criteria: * History of seizure for either the subject or any family member * Implanted pacemaker * Contraindications for TMS and fNIRS, including open wound, infection, lesions, arteriosclerosis, history of hemophilia, or demand-type pacemaker * Acute cerebral hemorrhage * History of major spinal surgery, fracture, or traumatic injury to the lumbar spine. * Evidence of neurological deficits (e.g., radiculopathy, loss of sensation, or motor weakness in lower limbs). * Diagnosis of systemic inflammatory conditions (e.g., Ankylosing Spondylitis, Rheumatoid Arthritis). * Allergy to adhesives or history of severe skin sensitivity to vibration/mechanical pressure. * Body Mass Index (BMI) \> 30 kg/m2 (to ensure clarity of RUSI, dEMG, and fNIRs signal quality). * Pregnancy (due to changes in spinal biomechanics and hormones)
Source: ClinicalTrials.gov (US National Library of Medicine), snapshot October 2026. Check the registry for current recruiting status. Record: https://clinicaltrials.gov/study/NCT07801729