“…When compared to sham or no intervention, LSE appears to be advantageous 22,65 ; however, when compared to other exercise interventions or to manual therapy (MT), no definitive advantage has been ascertained. 11,24,35,44,49,50,62,75 In light of the variable clinical success of LSE and in accordance with the aforementioned need to classify patients who have LBP into more homogeneous subgroups, Hicks et al 33 suggested a clinical prediction rule (CPR) to specifically identify patients with LBP who are likely to exhibit short-term improvement with LSE. Four variables were found to possess the greatest predictive power for treatment success: (1) age less than 40 years, (2) average straight leg raise (SLR) of 91° or greater, (3) the presence of aberrant lumbar movement, and (4) a positive prone instability test.…”