PM & R : the journal of injury, function, and rehabilitation
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To assess the bio-behavioral and physical performance characteristics of individuals with chronic low back pain who demonstrated the pain centralization phenomenon and received the McKenzie intervention using selected bio-behavioral and physical performance measures at intake and at 5 weeks and 10 weeks after treatment. ⋯ McKenzie intervention reduced pain and related fear and disability beliefs and improved physical performances in individuals with chronic low back pain. Improvements in physical performances remained stable 10 weeks after treatment, regardless of the elevation in bio-behavioral factors.