The prevalence and disability associated with discogenic low back pain are significant, and there is a general lack of widely accepted conservative treatments for the condition. A majority of previous studies that have assessed the efficacy of self-directed exercise-based rehabilitation programs did not include comprehensive metrics to confirm whether participants actually participated in the exercises prescribed. In this pilot study, the investigators hope to determine whether proxies of compliance with a daily, self-directed rehabilitation program for discogenic low back pain are correlated with participant-reported improvements in pain and function. The feasibility of a mobile interface designed to help patients with chronic low back pain track the daily management of their conditions will also be evaluated.

Inclusion Criteria:

• Low back pain with predominantly axial symptoms (axial pain > leg pain) that are exacerbated with sitting and alleviated with walking
• Persistence of symptoms for at least 3 months
• Lumbar intervertebral disc pathology evident on magnetic resonance imaging
• 18 to 65 years old
• Computer literate; have smartphone (iPhone 5S or up, Android 2.3 or up)
• English speaking

Exclusion Criteria:

• Concurrent pathology that may contribute to patients' axial low back symptoms (e.g., spondylolysis, spondylolisthesis, facet arthropathy)
• Severe lumbar disc degeneration prior to beginning Back Rx exercise program
• History of lumbar spine surgery or other interventions prior to beginning Back Rx exercise program
• History of trauma
• Cases involving workers' compensation or other legal claims
• Non-English speaking