516283.fig.002a
(a)
516283.fig.002b
(b)
Figure 2: The standing time on one leg versus age for the eyes open (a) and eyes closed (b) along with the respective cubic regression lines. All data is shown . Ages at the maximum values in cubic curves were 31.2 years for open eyes and 28.2 years for closed eyes, and ages at the minimum values were 88.1 years for open eyes and 77.3 years for closed eyes.