Table 2.

Sample size and power calculations for the trial

Outcome Measure	Mean Change Expected	SD	Sample Size Required (per group)
Gait Velocity (m/sec)	0.1	0.15	36
Vestibular Rehabilitation Benefit	-7	10.1	33
Questionnaire (%) [25]
Static Posturography (% composite score)[31]	10	15	36
Dynamic Visual Acuity (LogMAR) [32]	0.1	.136	30