Table 1. Virtual reality postural control protocol.

	Visual	Auditory	Somatosensory
Low sensory load	Static	No sound	Floor
High sensory load	Stars moving AP at 0.2 Hz, 0.032m [26]	white noise cycles, i.e., intensity increases from 0 to 3dB at 0.3Hz	Airex Balance Pad 20"L x 16.4"W x2.5"H.