Table 1. Eligibility criteria.

Population	Acute (<4 weeks) WADII (0-II or I-II participants were included when the grade was not classified in study)
Intervention	Conservative treatment (inclusive of the range of intervention detailed as part of the search strategy in search stages 3–20, and excluding drug therapy)
Comparison	Standard/control intervention
Outcome	Clinical relevant outcomes base on the International Classification of Function, Disability and Health (ICF)
Study design	Randomised controlled trial