Table 2.

F - test values and p values from one way repeated measures ANOVA and Bonferroni adjusted post-hoc pairwise analysis on step length, step width and step time for unperturbed walking and for selected perturbations

			No perturbations	Left	Right	Forward	Backward	CW	CCW
Step length	Within - subjects effect	F - test	2.518	10.597	47.874	6.667	2.724	4.331	0.551
		p - value	0.051	0.000*	0.000*	0.000*	0.038*	0.004*	0.736
					1-2 (0.003*)
				1-2 (0.034*)	2-3 (0.002*)	1-3 (0.055)		2-4 (0.004*)
	Pairwise comparison - Step-Step (p-value)		/	2-5 (0.068)	2-4 (0.003*)	3-5 (0.074)	/	2-5 (0.013*)	/
				2-6 (0.033*)	2-5 (0.003*)	3-6 (0.085)
					2-6 (0.004*)
Step width	Within - subjects effect	F - test	0.826	38.288	43.304	2.793	2.426	8.021	1.328
		p - value	0.541	0.000*	0.000*	0.035*	0.058	0.000*	0.279
				1-2 (0.017*)	1-2 (0.001*)
				1-4 (0.000*)	1-3 (0.046*)			1-3 (0.116)
				2-4 (0.000*)	2-4 (0.000*)			2-3 (0.045*)
	Pairwise comparison - Step-Step (p-value)		/	2-5 (0.020*)	2-5 (0.001*)	2-3 (0.195)	/	3-5 (0.040*)	/
				2-6 (0.018*)	2-6 (0.002*)			3-6 (0.136)
				4-5 (0.002*)	3-4 (0.001*)
				4-6 (0.003*)	3-6 (0.016*)
					4-6 (0.009*)
Step time	Within - subjects effect	F - test	1.778	5.046	21.077	11.346	12.662	1.373	0.734
		p - value	0.148	0.002*	0.000*	0.000*	0.000*	0.262	0.604
					1-2 (0.008*)	1-4 (0.063)	1-2 (0.068)
					1-3 (0.099)	2-3 (0.058)	2-3 (0.026*)
	Pairwise comparison -Step-Step (p-value)		/	2-6 (0.055)	2-3 (0.000*)	2-4 (0.041*)	2-4 (0.024*)	/	/
				4-6 (0.088)	2-4 (0.003*)	2-5 (0.062)	2-5 (0.063)
					2-5 (0.011*)	2-6 (0.062)	2-6 (0.009*)
					2-6 (0.001*)

*statistically significant difference p < 0.05