Low back pain (LBP) induces significant burden on individuals and healthcare systems, with societal costs. 1 There are two types of LBP: (a) mechanical pain (associated with disc, joint, ligament, and muscle problems or injuries) and (b) non-mechanical or referred pain (associated with tumor, infection, disorders of other internal organs, and neuropathic pain). 2 LBP is the most prevalent rheumatic and musculoskeletal disease (RMD) 3 and patients often experience physical discomfort and functional limitations that lasts for at least 1 day, affecting their daily activities, social and working lives. 4 The symptoms may result in disability, with implications on quality of life. 4 It is estimated that 5%-10% of individuals live with LBP and about 10% to 40% of all patients with LBP develop chronic symptoms with disability. 5 According to the EpiReumaPt study, in Portugal, 26.4% (95% CI 23.3%-29.5%) of individuals are diagnosed with LBP. 6 Recent studies have shown the substantial role of psychosocial factors in the LBP disability process and outcomes, in primary care and after surgery. 7 LBP becomes persistent and 3 months after the initial consultation, a large proportion of patients, in primary healthcare settings, continue to have pain complaints and report disability. 8 Pain is a subjective experience 9 and because it is influenced by