Efficacy of Exercises in Individuals With Non-specific Chronic Low Back Pain

Efficacy of Motor Control Exercises and Resistance Training on Pain, Function, Kinesiophobia and Trunk Strength in Individuals With Non-specific Chronic Low Back Pain

This is a randomized controlled trial project to analyze the effectiveness of lumbar motor control exercises and lumbar resistance training on pain, functional, kinesiophobia and trunk strength in individual with chronic low back pain. The project has two parallel arms and will be supervised by physiotherapists (motor control exercises) and physical education professionals (resistance training). The participants will be Militaries of the Military Fire Department of the Federal District who presents in the recruitment regular low back pain more than 3 months. The two groups will be supervised in12 weeks of exercises in the Physical Activity Center of Military Fire Department of the Federal District. Our hypotheses is that the resistance training effects wil be superior to motor control exercises only for trunk strength (isokinetic flexion and extension).

Motor control exercises for the deep trunk muscles in patients with chronic low back pain is based on evidence of motor control dysfunction, including delayed onset of activity in the transversus abdomens and internal oblique abdominal muscles and segmental hypertrophy of the lumbar multifidus muscle.

A type of strength-building exercise program that requires the body muscle to exert a force against some form of resistance, such as weight, stretch bands, water, or immovable objects. Resistance exercise is a combination of static and dynamic contractions involving shortening and lengthening of skeletal muscles.

In a Numerical Rating Scale (NRS), patients are asked to circle the number between 0 and 10, 0 and 20 or 0 and 100 that fits best to their pain intensity. Zero usually represents 'no pain at all' whereas the upper limit represents 'the worst pain ever possible'.

Questionnaires to measure and monitor changes in functional outcome in patients with LBP. The RDQ evaluates 24 activity limitations due to LBP, while the ODI consists of 10 items assessing the level of pain interference with physical activities.

Measures the excessive, irrational, and debilitating fear of movement and activity resulting from a feeling of vulnerability to painful injury or re-injury. Its a 17-item scale.

This outcome will be assessed by a isokinetic dynamometer. Today dynamometry routinely assesses muscle performance in healthy and symptomatic populations.

Inclusion Criteria: Nonspecific chronic low back pain (defined as pain and discomfort) localized below the costal margin and above the inferior gluteal folds, with or without referred leg pain of at least 3 months' duration. Exclusion Criteria: Spinal pathology (eg, tumor, infection, fracture, inflammatory disease), pregnancy, nerve root compromise, previous spinal surgery, major surgery scheduled during treatment or follow-up period, and presence of any contraindication to exercise.

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