Test-Retest Reliability of Postural Control Assessment on Biodex BioSway™

Table 1

Sensory constraints of each test condition on Biodex BioSway™.

BioSway™	Test condition (C)	Availability of sensory inputs
Modified clinical test of sensory interaction and balance	C1: eyes open, firm surface	Vision, vestibular, and somatosensory all available
	C2: eyes closed, firm surface	Vision removed, vestibular and somatosensory available
	C3: eyes open, foam surface	Vision and vestibular available, somatosensory altered
	C4: eyes closed, foam surface	Vision removed, vestibular available, somatosensory altered
Head shake sensory interaction and balance test	C5: eyes closed, firm surface, headshake 120 degrees per second	Vision removed, vestibular altered, somatosensory available
	C6: eyes closed, foam surface, headshake 120 degrees per second	Vision removed, vestibular and somatosensory altered