* Exercise-based treatment is part of the recommendations for good practice in the treatment of low back pain (acute, sub-acute and chronic). * The low back pain population is heterogeneous. This heterogeneity would cause the positive effects of a treatment to be canceled out by the negative effects of another part of the population. * This polymorphism has led several authors to classify low back pain into subgroups. These subgroups constitute more homogeneous clinical pictures and would facilitate the adaptation of treatments. * The recommendations of the American Physical Therapy Association suggest 5 subgroups of low back pain. One of them is "low back pain with movement coordination defect". In this subgroup, Luomajoki studied the reliability of different functional tests used in clinical practice. 6 out of 10 motion control fault tests show good reliability. * The quantified analysis of the movement of low back pain patients would make it possible to determine the sensitivity of detecting an anomaly in the 6 lumbar movement control tests.
Aged more than 18 years
Common low back pain with medical prescription for rehabilitation
Signed consent
Be affiliated to a social security scheme
Body Mass Index greater than 30 (obesity)
Person who does not understand French
Pregnant woman
Refusal to participate
Single group
motion control fault tests
Other interventionPatients make 6 motion control fault tests, in the same order. Each test is performed three times
Range of compensation motion : "waiters bow" test
Lumbar flexion measured for test number 1 "waiters bow". Patients are filmed during the test. Videos are watched by three physiotherapists. They going to establish a diagnostic normal or abnormal
Range of compensation motion : "pelvic tilt" test
thoracic flexion measured for test number 2 "pelvic tilt". Patients are filmed during the test. Videos are watched by three physiotherapists. They going to establish a diagnostic normal or abnormal.
Range of compensation motion : "One leg stance" test
Pelvic shift measured for test number 3 "One leg stance ". Patients are filmed during the test. Videos are watched by three physiotherapists. They going to establish a diagnostic normal or abnormal.
Range of compensation motion : "sitting knee extension" test
Lumbar flexion measured for test number 4 "sitting knee extension". Patients are filmed during the test. Videos are watched by three physiotherapists. They going to establish a diagnostic normal or abnormal.
Speed of execution for test 1
It is measured with a camera. The camera can film one hundred pictures per second. Speed of execution is measured in seconds.
Speed of execution for test 2
It is measured with a camera. The camera can film one hundred pictures per second. Speed of execution is measured in seconds.
Speed of execution for test 3
It is measured with a camera. The camera can film one hundred pictures per second. Speed of execution is measured in seconds.
Speed of execution for test 4
It is measured with a camera. The camera can film one hundred pictures per second. Speed of execution is measured in seconds.
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