Figure 2 | Scientific Reports

Figure 2

From: Using smartphone accelerometry to assess the relationship between cognitive load and gait dynamics during outdoor walking

Figure 2

Example autocorrelation of vertical acceleration (trimmed to emphasize area around zero-lag). The signal is symmetrical around zero-lag as the time shift occurs in both directions. Correlations between a step and each subsequent/preceding step (p1, p2 etc.) are marked by crosses. Step regularity is the ratio of p1 and p0. Stride regularity is the ratio of p2 and p0.

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