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Table 3 Resulting gait kinematic variability of each walking bout

From: Biomechanics and energetics of walking in powered ankle exoskeletons using myoelectric control versus mechanically intrinsic control

Walking condition Step length Step width Step period Double support period
  (Normalized) (Normalized) (ms) (ms)
Unpowered 0.021 ± 0.002 0.018 ± 0.002 14.1 ± 1.2 7.5 ± 0.6
Timing-Based 0.023 ± 0.002 0.021 ± 0.002 17.6 ± 1.5 9.2 ± 0.7
Proportional Myoelectric 0.026 ± 0.004 0.021 ± 0.001 17.1 ± 2.2 11.2 ± 1.1
P-Value 0.231 0.970 0.615 0.210
  1. Variability has been defined as the average standard deviation across subjects. All values are reported as mean ±s.e.m. across subjects. All distance measurements have been normalized by leg length. P <0.05 represents a statistically significant difference between the proportional myoelectric controller and the timing-based controller