Table 1 Description of gait parameters
From: Data-driven characterization of walking after a spinal cord injury using inertial sensors
Gait parameter (Statistical features) | Description |
|---|---|
Stride duration (mean, cov, asym, d2r) | Time between two consecutive heel strikes of the same side |
Step duration (mean, cov, asym, d2r) | Time between the heel strike of one side until the following heel strike of the opposite side |
Swing phase (mean, cov, asym, d2r) | Relative time of the time between toe off and heel strike of the same side w.r.t. the stride duration |
Double support phase (mean, cov, asym, d2r) | Relative time of the time when both feet are on the ground w.r.t. the stride duration |
Stride length (mean, cov, d2r) | Distance in-between two heel strikes of the same side |
Stride width (mean, cov, asym, d2r) | Maximum lateral displacement during a stride |
Stride height (mean, cov, asym, d2r) | Maximum vertical displacement during a stride |
Cyclogram top view (ACC, SSD, area) | Top view of the ankle endpoint trajectory |
Cyclogram side view (ACC, SSD, area) | Side view of the ankle endpoint trajectory |
Smoothness | Modified spectral arc length of the angular velocity of the sagittal plane |
Change in speed, stride length, cadence | Slope divided by the intercept of the linear fit of the parameters over the 6 min |
Speed inconsistency | Absolute value of the change in speed |