Fig 1.
Plots of raw-data resultant plots for participants with the EC condition.
(A) Amplitude spectrum of the plotted on a log scale.
is determined from the
of the system which corresponds to where the peak of the spectrum occurs. (B) Decomposition of postural sway into unit sways. A unit sway is defined as a unidirectional sway from one reversal point (i.e., angular velocity is zero) to another. The equilibrium occurs at when the angular acceleration is zero and this is identified on the plots with the *. (C) Plot of
against
for the entire trial. The straight line indicates the line of equilibrium, or the gravitational torque on the pendulum. The inset plot is of
against
for a unit sway. The thicker line indicates where the slope was computed to find
(D) Log-log of stabilogram-diffusion plot with fitted regression lines.
and
values, as well as the coefficient of determination,
, values are shown.
Fig 2.
Distribution of calculated (A) intrinsic stiffness,, and quasi-stiffness,
, as well as (B) short-term scaling exponent,
, values.
EO are shaded in grey, while EC are not shaded.
Fig 3.
Correlation plots and the Spearman correlation coefficients between (A) and
, (B)
and
and (C)
and
for the EO condition.
Plots (D), (E) and (F) are for the EC condition.
Fig 4.
Bland–Altman plots comparing quasi-stiffness values calculated by Kqs1 and Kqs2 in both EO and EC conditions.
The left panel shows the plot for the EO condition, and the right panel for the EC condition. The mean differences (solid lines) and 95% limits of agreement (dashed lines) are indicated.