Chronic low back pain (CLBP) is a major public health problem. Multidisciplinary functional rehabilitation program (FRP), which give patients the skills to better manage pain and return to physical activity, are effective in the short term. In the medium and long term, due to lack of motivation, two thirds of patients stop their physical activity again, causing them to fall back into the vicious circle of pain. Investigators hypothesise that a remote assessment and motivational support program (MSP) based on an application, piloted by a care coordinator, could allow the continued improvement of symptoms and activities observed after the FRP programs, and thus limit the consequences of CLBP for the patient and society. The main objective of this study is to evaluate the effect of the motivational support program EMOTIV, on disability and pain at one year, in chronic low back pain patients who have benefited from a FRP program.