Power 2006.

Methods	Method of randomisation unclear CT scans analysed by a neuroradiologist who was blinded to patients' clinical presentation and videofluoroscopic swallowing status Baseline data not including dysphagia severity of baseline groups
Participants	1 centre in UK 16 participants
Interventions	Rx: actual electrical stimulation following threshold setting exercise to faucial pillars C: single episode of sham electrical stimulation following threshold setting exercise
Outcomes	Changes on videofluoroscopy 60 minutes post intervention
Notes	Exclusions: prior dysphagia, intercurrent illness, other neurological disease
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Method of randomisation unclear
Allocation concealment (selection bias)	Unclear risk	Unclear
Blinding (performance bias and detection bias) All outcomes	Unclear risk	Unclear
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Unclear
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Unclear
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Unclear
Selective reporting (reporting bias)	Low risk	All outcomes reported
Other bias	Low risk	None identified