Altschuler 1999

Methods	Randomised cross‐over trial
Participants	Country: USA Sample size: 9 participants (9 in each group) Inclusion criteria: at least 6 months post‐stroke
Interventions	2 arms: 4 weeks of mirror therapy: participants were instructed to move the non‐paretic arm while looking in the mirror and moving the paretic arm as best they could; followed by 4 weeks of control therapy, using transparent plastic instead of a mirror vice versa
Outcomes	Outcomes were recorded at baseline, after 2, 4, 6 and 8 weeks self‐developed scale (‐3 to +3); assessing changes in patients' movement ability in terms of range of motion, speed and accuracy by video analysis
Notes	Data not included in the analysis
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Patients were randomly assigned (authors' statement)
Allocation concealment (selection bias)	Unclear risk	Not stated
ITT analysis	Unclear risk	Not stated
Blinding of outcome assessment (detection bias) primary outcome	Low risk	Assessors were blinded to group allocation