Examining Human Unipedal Quiet Stance: Characterizing Control through Jerk

Figure 4

(a, b) The power spectral densities for a subject’s M-L and A-P jerk signals. (c, d) Corresponding autocorrelation functions plotted. The horizontal lines indicate 95% confidence bounds. In this case, the relatively rapid falloff of the autocorrelation functions to such small values is indicative of stationary signals. These qualities are generally representative of the jerk data. Power Spectral density of (a) M-L jerk and (b) A-P jerk. (c) Autocorrelation function for (c) M-L jerk and (d) A-P jerk

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