Table 1.

Test-retest reliability of three trials for six testing conditions: intraclass correlation coefficients and 95% confidence intervals calculated for normalized path length, root mean squared (RMS), and peak-to-peak parameters for both ACC and COP.

Condition	n	Intraclass correlation coefficient (95% confidence interval)
		Normalized path length		RMS		Peak-to-peak
		ACC	COP	ACC	COP	ACC	COP
1	81	0.72 (0.62–0.78)	0.42 (0.28–0.55)	0.16 (0.03–0.31)	0.14 (0.11–0.29)	0.47 (0.34–0.60)	0.44 (0.30–0.57)
2	81	0.72 (0.63–0.80)	0.77 (0.69–0.84)	0.46 (0.33–0.59)	0.46 (0.33–0.59)	0.54 (0.41–0.65)	0.54 (0.42–0.66)
3	80	0.63 (0.52–0.73)	0.63 (0.51–0.73)	0.57 (0.38–0.63)	0.45 (0.32–0.58)	0.58 (0.46–0.69)	0.56 (0.44–0.68)
4	78	0.67 (0.56–0.76)	0.61 (0.49–0.72)	0.68 (0.57–0.77)	0.68 (0.58–0.77)	0.72 (0.62–0.80)	0.75 (0.66–0.82)
5	64	0.80 (0.71–0.86)	0.76 (0.66–0.84)	0.55 (0.41–0.68)	0.68 (0.54–0.76)	0.71 (0.61–0.80)	0.62 (0.49–0.73)
6	69	0.77 (0.68–0.84)	0.81 (0.73–0.87)	0.66 (0.54–0.76)	0.64 (0.52–0.74)	0.79 (0.71–0.86)	0.75 (0.66–0.83)