Hatzitaki 2009.

Methods	Type of study: RCT
Participants	Number of participants randomised: 56 Losses: none reported Age: 70.9 (SD 5.7) years Sex: women Residential status of participants: community dwelling Health status as defined by authors: healthy Setting: Greece Inclusion: free from any neurological and/or musculoskeletal impairment, voluntarily participated in the study. They had no prior physical practice or experience in sports‐related activities. Exclusion:
Interventions	EXERCISE GROUP (COMPUTERISED BALANCE) (n = 20): A/P training visually guided WS task, warm‐up (5 min stretching), main phase (15 min, 3 sets of 5 WS trials separated by 1‐min intervals) and recovery phase, (5 min stretching). EXERCISE GROUP (COMPUTERISED BALANCE) (n = 20) M/L training visually guided WS task, warm‐up (5 min stretching), main phase (15 min, 3 sets of 5 WS trials separated by 1‐min intervals) and recovery phase, (5 min stretching). CONTROL GROUP (n = 16): usual activity Duration and intensity: 12 x 25 min sessions (3 sessions/week, 4 weeks) Supervisor: researcher Supervision:individual Setting: clinic
Outcomes	Force platform data (multiple variables) Compliance/adherence: not reported Adverse events: No adverse events reported.
Notes	Data from the 2 exercise groups were excluded the meta‐analysis as groups were trained in the outcome measures and data was not able to be combined.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Randomisation mentioned but insufficient information to permit judgement
Allocation concealment (selection bias)	Unclear risk	insufficient information to permit judgement
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Probably ‘As‐treated’ analysis done, no drop outs reported but groups unequal sizes
Selective reporting (reporting bias)	Unclear risk	Insufficient information to permit judgement
Other bias	Low risk	The study appears to be free of other sources of bias
Blinding (participant)	High risk	Not possible
Blinding (assessor)	Unclear risk	Not reported
Were the treatment and control group comparable at entry?	Low risk	No differences reported on baseline characteristics with a potential to influence the effect of the intervention
Was the surveillance active, and of clinically appropriate duration (i.e. at least 3 months post intervention)?	High risk	Only immediately post intervention data, no follow‐up data reported.