Table 1.

Mean values and standard deviations of the center of pressure parameters and gaze parameters according to conditions before and after the fatigue protocol.

		Unfatigued condition			Fatigued condition			p
		Eyes open	Saccadic eye movements	Eyes closed	Eyes open	Saccadic eye movements	Eyes closed	Fatigue	Condition	Interaction
Body sway parameters	AP displacement (cm)	305.32 ± 100.38	233.09 ± 82.65	347.89 ± 112.36	448.49 ± 169.80	311.89 ± 133.01	378.30 ± 100.44	0.001 (0.46)	0.001 (0.44)	0.036 (0.17)
	ML displacement (cm)	111.89 ± 24.12	111.42 ± 20.79	111.95 ± 17.63	131.85 ± 22.39	125.92 ± 32.10	127.25 ± 27.84	0.002 (0.41)	0.750	0.687
	AP RMS	0.38 ± 0.11	0.28 ± 0.09	0.43 ± 0.13	0.56 ± 0.21	0.39 ± 0.15	0.49 ± 0.13	0.001 (0.48)	0.001 (0.45)	0.047 (0.15)
	ML RMS	0.14 ± 0.03	0.15 ± 0.04	0.14 ± 0.02	0.16 ± 0.02	0.16 ± 0.04	0.17 ± 0.04	0.006 (0.33)	0.777	0.606
	Area (cm2)	1.04 ± 0.42	0.78 ± 0.33	1.09 ± 0.35	1.72 ± 0.84	1.27 ± 0.68	1.57 ± 0.60	0.001 (0.65)	0.005 (0.27)	0.509
	AP median frequency (Hz)	0.69 ± 0.18	1.27 ± 0.62	0.96 ± 0.43	0.67 ± 0.25	1.02 ± 0.55	1.11 ± 0.54	0.490	0.001 (0.36)	0.038 (0.15)
	ML median frequency (Hz)	2.19 ± 0.92	2.14 ± 1.04	2.40 ± 0.84	1.53 ± 0.47	2.25 ± 1.59	2.44 ± 1.19	0.278	0.042 (0.16)	0.043 (0.14)

P-values refers to main effects of fatigue and condition and interaction effects between fatigue and condition. Significant effect sizes are given in parentheses. AP, anterior-posterior; ML, medial-lateral; RMS, root mean square.