Laser acupuncture in chronic low back pain trial.

INTERVENTION: Laser level infra red laser stimulation of acupuncture points invoves applying a laser emitting probe to selected points on the body surface. These are tender points at the site of pain and other distal points selected according to acupunture theory principles. Points are inividualised for each patient and betweeen treatment sessions . They are stimulatied with laser for a specified duration of time according to directions at randomization. The duration of each treament session including general patient contact is 15 minutes. Frequency of sessions is once a week for 8 weeks. CONDITION: Chronic non‐specific low back pain PRIMARY OUTCOME: Disability ( Oswestry Disability Index) Pain (Numerical Rating Scale for Pain) SECONDARY OUTCOME: Disability (Oswestry Disability Index ) Global rating scale (effectiveness of treatment using 7 point Likert scale) Pain (Numerical Rating Scale for Pain) INCLUSION CRITERIA: Chronic non‐specific low back pain (duration >3 months )