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Table 2 Objective parameters

From: Feasibility of a walking virtual reality system for rehabilitation: objective and subjective parameters

  On the floor (0 m) In sitting position (1.3 m) In standing position (1.7 m)
Number of markers (n) 68 15 7
 Accuracy (cm)    
  X coordinate   Y coordinate   Z coordinate   Total 0.83 ± 0.42 0.73 ± 0.41 0.87 ± 0.88 0.81 ± 0.61 0.57 ± 0.26 0.55 ± 0.27 0.58 ± 0.27 0.57 ± 0.27 0.51 ± 0.26 0.54 ± 0.27 0.57 ± 0.26 0.54 ± 0.26
 Jitter (cm)    
  X coordinate   Y coordinate   Z coordinate   Total 0.32 ± 0.53 0.24 ± 0.51 0.04 ± 0.09 0.21 ± 0.44 0.05 ± 0.08 0.05 ± 0.09 0.03 ± 0.04 0.05 ± 0.07 0.07 ± 0.13 0.06 ± 0.14 0.05 ± 0.06 0.06 ± 0.11
  1. Number of the markers detected in the center of the grid. Accuracy and jitter values estimated in the intersection points of the grid. Results are defined in terms of mean and standard deviation