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Table 1 Main characteristics and walking parameters of the two groups

From: Recommended number of strides for automatic assessment of gait symmetry and regularity in above-knee amputees by means of accelerometry and autocorrelation analysis

  AMP CTRL P
Main characteristics
N 10 10 -
Age (years) 45.7 ± 3.1 27.7 ± 1.2 < 0.0001
Height (cm) 175.9 ± 1.7 179.8 ± 1.5 0.096
Body mass (Kg)1 75.8 ± 2.2 73.4 ± 3.1 0.48
Prosthesis use duration (months)2 127.2 ± 38.0 - -
Electronic leg use duration (months) 37.9 ± 10.5 - -
General walking parameters
Natural walking speed (km/h) 4.0 ± 0.2 4.8 ± 0.3 0.036
CadenceV (stride/min) 51.23 ± 0.88 56.59 ± 1.75 0.061
CadenceAP (stride/min) 51.23 ± 0.88 56.57 ± 1.75 0.062
Symmetry of step
Ad1V (unitless) 0.566 ± 0.036 0.939 ± 0.004 < 0.0001
Ad1AP (unitless) 0.359 ± 0.048 0.884 ± 0.007 < 0.0001
Regularity of stride
Ad2V (unitless) 0.819 ± 0.016 0.930 ± 0.004 < 0.0001
Ad2AP (unitless) 0.763 ± 0.019 0.884 ± 0.008 < 0.0001
  1. AMP - amputees; CTRL - control subjects. Subscript V - Vertical; AP - Antero-posterior. Of note, cadence from V and AP signals is virtually the same, as expected. Reported values are mean ± standard error (SE).
  2. 1with prosthesis in AMP
  3. 2from first fitting