Fig. 1From: Efficacy of a multidimensional versus usual care physiotherapy on pain and electroencephalography (EEG) spectrum in chronic nonspecific low back pain: study protocol for a randomized controlled trialFlow chart of research design (CNSLBP, chronic non-specific low back pain; NRS, Numerical Rating Scale; PCS, Pain Catastrophizing Scale; SF-36, Medical outcomes 36 Health Service Survey; TSK, Tampa Scale for Kinesiophobia; ODI, Oswestry Disability Index; FABQ, Fear Avoidance Beliefs Questionnaire; ROM, range of motion)Back to article page