The biopsychosocial model was first conceived in 1977 by George Engel

who pointed out that in order to understand a person's state of health, one must consider psychophysiological behavioral patterns, not biological (a model often used for chronic pain), and that pain is a psychophysical pattern that cannot be divided into biological, psychological or social factors alone.

The physiotherapist needs to know how biopsychosocial factors interact in patients with chronic pain in order to explain the persistence of the disease and to use it as a basis for planning intervention programs.

There is a need to combine physiotherapy with psychological treatment to address all components, including the experience of chronic pain. It has been proposed to collect biopsy social data by using a combination of clinical assessment, psychological assessment and clinical assessment.

The clinical evaluation is carried out after data collection at the patient's entrance, with a focus on the physical and mental health of the patient and his or her mental state.