Physical Activity on Neurophysiologic Gene Expression Profiles of Chronic Low Back Pain

Inclusion Criteria: * be 18-60 years of age; * have nonspecific cLBP (≥4 on the numeric rating scale; NRS) present for at least 3 out of the last 6 months and ≥ half the days in the past 6 months; * comprehend English (due to lack of reliability and validity of study instruments and the intervention in non-English populations). * Have daily access to a computer, tablet or smartphone with access to internet * Have less than 150 minutes of moderate physical activity a week * Be willing to wear activity tracker for 12 weeks Exclusion Criteria: * Chronic pain at another site or associated with a painful condition (eg., fibromyalgia, neuropathy, rheumatoid arthritis) * history of comorbidities that affect sensorimotor function (eg., multiple sclerosis, cancer, spinal cord injury, diabetes) * previous spinal surgery within last 1 year * presence of neurological deficits such as weakness in the lower extremities (motor strength 4/5 of quads, glutes, hamstrings, EHL) * bowel or bladder dysfunction such as difficulty voiding or incontinence * sciatica or (+) leg raise * positive Romberg test * being pregnant or within 3 months postpartum * history of psychological disorders (major depression, bipolar disorder, schizophrenia) * identification of any "red flag" condition in the volunteer's past medical history that suggests specific LBP as determined by Dr. Kim such as conditions or medications that can affect pain sensitivity * injury to non-dominant hand or presence of open skin lesions, disturbed sensation, carpal tunnel or rash