Individuals with chronic low back pain and other chronic pain conditions have been shown to have altered somatosensory, the ability to sense input to the tissue, which is processed in the primary somatosensory cortex or S1. Two-point discrimination is currently the best clinical tool utilized to assess an individual's ability to sense touch. This study will assess TPD changes after a course of standard physical therapy care with the addition of sensory training.
DEERS eligible
18 to 64 years old
Low back pain > 3 months
Numeric Pain Rating Scale minimal pain rating of 3/10 in the last seven days
History of spinal surgery
History of spinal injections or nerve ablations in the past year
History of traumatic brain injury (TBI)
History of cerebral vascular accident (CVA)
Single group
physical therapy and sensory training
Other interventionPhysical therapy standard of care and 5 minutes of sensory training.
Tactile acuity as measured by two-point discrimation
measured using a Caroline 2-point discriminator tool. TPD is the most widely accepted objective measurement of tactile acuity in the clinical setting
Pain as measured by numeric pain rating scale
The NPRS is an 11-point numerical pain rating scale used to measure pain. Patients rate pain ranging between 0 (no pain) and 10 (worst pain imaginable)
Low back perception
measured using the Freemont Back Awareness Questionnaire (FreBAQ), a multi-item, self-report questionnaire designed to quantify distorted perception of the back in people with CLBP
Tactile Localization Accuracy
measured by the number of correct responses out of 9 attempts for stimulation of the 9-grid chart
Function
measured by the Oswestry Disability Index (ODI), 10 patient-completed questions in which the response options are presented as 6-point Likert scales. Scores range from 0% (no disability) to 100% (most severe disability
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