BACKGROUND: Spinal manipulation is commonly used to treat back pain. The application of spinal manipulation has traditionally involved an element of targeting the technique to a level of the spine where the proposed movement dysfunction is sited. We evaluated the effects of a targeted manipulative thrust versus a thrust applied generally to the lumbar region. METHODS: A randomised controlled clinical trial in patients with low back pain following CONSORT (Consolidated Standards of Reporting Trials) guidelines. Sixty subjects were randomly allocated to two groups: one group received a targeted manipulative thrust (n = 29) and the other a general manipulation thrust (GT) (n = 31) to the lumbar spine. Thrust was either localised to a clinician-defined symptomatic spinal level or an equal force was applied through the whole lumbosacral region. We measured pressure-pain thresholds (PPTs) using algometry and muscle activity (magnitude of stretch reflex) via surface electromyography. Numerical ratings of pain and Oswestry Disability Index scores were collected. RESULTS: Repeated measures of analysis of covariance revealed no between-group differences in self-reported pain or PPT for any of the muscles studied. SUMMARY: A GT procedure-applied without any specific targeting-was as effective in reducing participants' pain scores as targeted approaches. TRIAL REGISTRATION NUMBER: ISRCTN11994230.

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