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. 2019 Nov 28;2019(11):CD012475. doi: 10.1002/14651858.CD012475.pub2

Hoang 2016.

Methods Single‐blinded block randomised controlled trial. Allocation by computer‐generated random number schedule
Participants n=50
Randomised: E = 28, C = 22
Analysed: E = 23, C = 21
No differences at baseline between groups on primary (CSRT & SST) & secondary (CSRT decision & movement time, postural sway, TUG, 10MWT, 6MWT, TMT, SDMT, 9‐HPT, MSFC & number of falls) measures
Interventions E: 30 minutes, twice per week for 12 weeks at home, of 2 interactive exergames requiring stepping in multiple directions to cues
C: no intervention, continued their normal physical activity
Outcomes Number of falls per group, mobility, dual task mobility, cognition, MS function, stepping reaction time
Notes E: Exercise, C: Control, CSRT: Choice Stepping Reaction Time, SST: Stroop Stepping Test, TUG: Timed Up and Go, 10MWT: 10 meter walk test, 6MWT: 6 minute walk test, TMT: trail making test, SDMT” symbol digit modalities test, 9‐HPT: 9 hole peg test, MSFC: multiple sclerosis functional composite
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Low risk “Computer generated random number schedule”
Allocation concealment (selection bias) Unclear risk Insufficient information available to permit a judgement of ‘low risk’ or ‘high risk’
Blinding of participants and personnel (performance bias) 
 All outcomes Unclear risk Insufficient information available to permit a judgement of ‘low risk’ or ‘high risk’
Blinding of outcome assessment (detection bias) 
 All outcomes Low risk “Reassessments were conducted by a physiotherapist who was blind to group allocation”…
Incomplete outcome data (attrition bias) 
 All outcomes Low risk Balanced across groups and reasons for missing data unlikely to be related to outcome
Selective reporting (reporting bias) High risk Trial registration number ACTRN12612001139864.Additional outcomes presented in the paper to those presented in the protocol including MSFC, TUG, TMT and SDMT
Other bias Low risk Sample size calculated and required number of participants recruited