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Table 1 Subject demographics and vestibular diagnoses

From: Biofeedback improves postural control recovery from multi-axis discrete perturbations

Subject Demographics Computerized Dynamic Posturography Classification Rotation Test Caloric Test
Subject ID Age Gender SOT Score SOT5 SOT6 MCT Score UVH or (pBVH) Probability of normal VOR VOR gain Time Constant(s) RVR Caloric Sum
1 55 M 49 Fall, Fall, Fall Fall, Fall, Fall N/A BVH† < .001 0.333 N/A −100 3
2 45 M 45 Fall, Fall, Fall Fall, Fall, Fall 128 (p < 1e-14) < .001 0.841 2.02 0 0
3 59 M N/A N/A N/A N/A BVH† < .001 0.04 N/A 0 0
4 51 F 56 Fall, 26, 45 Fall, Fall, 45 158 ** 0.118 0.956 14.02 −4 23
5 32 M 46 Fall, Fall, Fall Fall, Fall, Fall 151 BVH† < .001 0.514 N/A 0 0
6 45 M 49 Fall, Fall, Fall Fall, Fall, Fall 130 BVH† < .001 0.899 N/A −11 9
  1. Legend.
  2. SOT: Sensory Organization Test. Normal mean composite scores are 80 for 20–59 years olds (yo) & 77 for 60–69 yo. 5th percentile (abnormal) limits are 69 for 20–59 yo & 70 for 60–69 yo. SOT 5 & 6: Average of Sensory Organization Test scores in conditions 5 (eyes closed, sway referenced platform) & 6 (eyes open, both visual surroundings and platform sway referenced). MCT: Motor Control Test. Normal mean composite scores are 143 for 20–59 yo & 152 for 60–69 yo. 5th percentile (abnormal) limits are 161 for 20–59 yo & 171 for 60–69 yo. VOR: Vestibulo-Ocular Reflex, as tested by 50 deg/s peak sinusoidal vertical axis rotation, 0.05 Hz–1 Hz. Midrange gain (0.2 Hz–1 Hz) and time constant estimated with parametric fit to gain & phase data (based on Dimitri et al., 1996 [21]). N/A: not available. *UVH or (pBVH): Unilateral (UVH) or bilateral vestibular (BVH) hypofunction, based on Dimitri et al., 2002 [22]. If patient is scored as BVH, then the probability of this occurring by chance is given in parentheses. RVR: Reduced vestibular response to bilateral, bithermal caloric stimulation. Response was too low for accurate estimation of time constant; classified as BVH by low VOR gain and low bilateral ice water calorics. **Classified as abnormal by low scores on CDP SOT 5 & 6.