Kim 2011a.

Methods	RCT
Participants	Recruited from a rehabilitation hospital in Korea 28 participants: 15 intervention, 13 control Inclusion criteria: not stated Exclusion criteria: people with a MMSE‐K score of < 10; people presenting with severe cognitive impairment of aphasia and unable to understand instructions. People with poor sitting balance such that they could not sit on a chair with back and armrests. People with limited ROM of the neck due to orthopaedic problems, and people with loss of visual acuity such that they could not perceive content on a computer screen Mean (SD) age: intervention group 66.5 (11) years, control group 62 (15.8) years 39% men Stroke details: 39% right hemiparesis Timing post stroke: intervention group mean (SD) 18.2 (11.3) d, control group 24 (31.1) d
Interventions	VR intervention: IREX system (30 min 3 times/week) plus computer‐assisted cognitive rehabilitation (30 min twice/week) Control intervention: computer‐assisted rehabilitation (30 min 5 times/week) Sessions were 30 min, 5 times/week over 4 weeks (approximately 6 h of VR in total)
Outcomes	Outcomes recorded at baseline and post intervention Upper limb function outcomes: Motricity index Lower limb function outcomes: Motricity index Cognitive function: computerised neuropsychological test and Tower of London test Activity limitation outcome: Korean modified Barthel Index
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not reported
Allocation concealment (selection bias)	Unclear risk	Not reported
Blinding of outcome assessment (detection bias) All outcomes	High risk	Not blinded
Incomplete outcome data (attrition bias) All outcomes	Low risk	No withdrawals
Selective reporting (reporting bias)	Low risk	No other outcome data collected