Chronic nonspecific low back pain (ie, low back pain of at least 12 weeks’ duration and without a specific cause) is one of the most common health conditions worldwide. Chronic low back pain is highly associated with disability, emotional changes, and work absenteeism. Given that chronic low back pain is very prevalent,4 the costs associated with this condition are very high.5 Approximately 60% of patients with chronic low back pain did not consider themselves recovered in a period of 1 year from the onset of symptoms, with moderate levels of pain and disability persisting over time. Therefore, many of these patients become frequent users of health care services in order to find treatments to minimize the severity of their symptoms.