Nara 2015.

Methods	RCT
Participants	Recruited in Korea 20 participants: 10 intervention group, 10 control group Inclusion criteria: history of stroke onset of > 6 months prior to the study; ability to walk without using a walking aid for a minimum of 15 m; MMSE score of > 24/30; able to comprehend and follow simple instructions Exclusion criteria: other neurological condition, orthopaedic disease or visual impairment Participant details not reported
Interventions	VR intervention: community‐based VR scene exposure combined with treadmill training. A VR video was displayed on a screen 3 m in front of the treadmill using a video projector. The VR video comprised images of community ambulation, such as walking on sidewalks, level walking, slope walking and walking over obstacles. 5 min of treadmill training was followed by 2 min rest to minimise fatigue Control intervention: muscle strengthening, balance training, indoor and outdoor gait training Both groups had conventional physical therapy for 60 min/d, 5 d/week for 4 weeks The VR and control intervention was an additional 30 min/d, 3 d/week for 4 weeks
Outcomes	Outcomes assessed post intervention Static balance ability (postural sway path length and speed at the center of pressure)
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not described
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not reported
Incomplete outcome data (attrition bias) All outcomes	High risk	Excluded participants with low participation rate
Selective reporting (reporting bias)	Unclear risk	Unclear