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Table 1 Inter-item correlation results for all the signals subject by subject

From: Detection of anticipatory postural adjustments prior to gait initiation using inertial wearable sensors

Subject Acceleration Angular velocity CoP displacement
  ML AP UD ML AP UD ML AP
1 0.88 0.87 0.83 0.69 0.56 0.64 0.99 0.99
2 0.87 0.92 0.72 0.80 0.80 0.73 0.99 0.98
3 0.82 0.93 0.65 0.83 0.60 0.77 0.97 0.95
4 0.84 0.67 0.50 0.69 0.55 0.77 0.97 0.98
5 0.83 0.83 0.75 0.88 0.81 0.94 0.98 0.99
6 0.51 0.97 0.78 0.83 0.54 0.65 0.98 0.98
7 0.87 0.84 0.83 0.84 0.74 0.77 0.93 0.99
8 0.93 0.97 0.90 0.93 0.89 0.88 0.99 0.99
9 0.80 0.92 0.83 0.93 0.83 0.68 0.98 0.86
10 0.57 0.84 0.72 0.84 0.70 0.69 0.98 0.93
average 0.79 0.88 0.75 0.83 0.70 0.75 0.98 0.97
SD 0.14 0.09 0.11 0.08 0.13 0.10 0.02 0.04
  1. Inter-item correlation results for all signals from all the subjects (p < 0.05) in the worst case scenario. All signals were low-pass filtered at 3 Hz and evaluated over 5 s. A higher value means that the pattern of movement is very similar between trials; a lower value indicates that the movement is different between trials. Ideally, the value should be 1.