skdh.gait_old.IntraStepCovarianceV

class skdh.gait_old.IntraStepCovarianceV

The autocovariance of vertical acceleration of 1 step with lag equal to the step duration. In other words, it is how similar the acceleration signal is from one step to the next for only 1 step. It differs from the StepRegularity in that step regularity uses the acceleration from the entire gait bout while intra-step covariance uses the acceleration only from individual steps. Values close to 1 indicate that the following step was very similar to the current step, while values close to 0 indicate that the following step was not very similar.

Methods

predict(fs, leg_length, gait, gait_aux)

Predict the gait event-level endpoint

References

[1]

C. Buckley et al., “Gait Asymmetry Post-Stroke: Determining Valid and Reliable Methods Using a Single Accelerometer Located on the Trunk,” Sensors, vol. 20, no. 1, Art. no. 1, Jan. 2020, doi: 10.3390/s20010037.