skdh.gait_old.IntraStrideCovarianceV

class skdh.gait_old.IntraStrideCovarianceV

The autocovariance of vertical acceleration of 1 stride with lag equal to the stride duration. In other words, it is how similar the vertical acceleration signal is from one stride to the next, for only 1 stride. It differs from the StrideRegularity in that stride regularity uses the acceleration from the entire gait bout while intra-stride covariance uses the acceleration only from individual steps. Values close to 1 indicate that the following stride was very similar to the current stride, while values close to 0 indicate that the following stride 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.