الفهرس 
Effects of lumbar repositioning feedbactransversus abdominis training on lumbarproprioception in patienwith chronic Mechanicallow back pain
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Abstract
Background Mechanical low back pain is a major cause of illness and disability, especially in people at working age. The deepest abdominal muscle the, transversus abdominis provide critical dynamic stabilization for the lumbar spine and prevent deleterious loading that can result in injury and pain, proprioception is considered essential for the control of human movement and can be important in diagnosing motor control impairment. Patients with low back pain present with both altered motor control and impaired spinal reposition sense Objective: To investigate the effect of lumbar repositioning feedback training and transverses abdominis training on pain, function, transverses abdomen is activation and lumbar proprioception in patients with chronic mechanical low back pain. Methods: Forty-eight patients with chronic mechanical low back pain participated in this study were assigned randomly into 4 equal matched groups, twelve patients in each group. All the groups received conventional lumbar proprioception training with adding transversus abdominis training to group A , adding lumbar repositioning feedback training to group B , adding transversus abdominis training and lumbar repositioning feedback training to group c and nothing added for group D Pain was assessed using visual analogue scale (VAS), back function was assessed using Oswestry disability index, transverses abdominis activation using biofeedback pressure unit and joint position sense was assessed using absolute repositioning error (ARE) All patients received treatment twice per week for 6 weeks. Assessments were carried out pre and post treatment. Results: Pre- post treatment evaluations comparisons showed improvement of pain, function, transversus abdominis activation and joint position sense post- treatment compared to pre-treatment within four groups. Conclusion:combined lumbar repositioning feedback training and transverses abdominis training might be a suggested component of treatment programs in managing patients with chronic mechanical low back pain.