The Multivariate Largest Lyapunov Exponent as an Age-Related Metric of Quiet Standing Balance

Table 1

Average PSD values for COP in AP of all subjects under different eyes conditions. The bands of frequency area are defined as 0.1–0.5 Hz, 0.5–1 Hz, 1–1.5 Hz, and 1.5–2 Hz.

Eyes condition	0.1–0.5 Hz		0.5–1.0 Hz		1.0–1.5 Hz		1.5–2.0 Hz
	Young	Old	Young	Old	Young	Old	Young	Old
EO	760 ± 220	742 ± 280	130 ± 50	124 ± 47	43 ± 18	37 ± 19	36 ± 15	33 ± 14
EC	828 ± 350	793 ± 310	104 ± 32	88 ± 39	37 ± 22	28 ± 8	31 ± 17	29 ± 11

The significant difference between different eyes conditions ().