Table 3.

Eligibility criteria of the identified studies.

Properties	Eligibility criteria
Type of article	Original article (i.e. commentaries, letters to the editors, case reports, reviews, theses, and conference papers were excluded)
Language	English or French
Population	Adult patients (18–65 year-old) suffering from non-specific chronic† low-back pain (NSCLBP) without a history of back surgery or pregnancy
Intervention	No intervention (e.g. rehabilitation, medication) on participants
Comparison	NSCLBP population compared with an asymptomatic control group
Outcomes	Movement and/or muscular activity related measurements

^†A patient was defined chronic when pain duration was superior or equal to 3 months.