Table 4.

Relationship between Path Length and CoP SD².

Direction	Condition	Equation	R2	Slope different from zero	Difference between conditions
ML	EC foam	y = 2.3 x + 1.96	0.39	p < 0.01	EC foam vs. EO foam: p = 0.70 EC foam vs. EC solid: p = 0.63 EC foam vs. EO solid: p = 0.94
	EO foam	y = 2.93 x + 0.87	0.51	p < 0.001	EO foam vs. EC foam: p = 0.70 EO foam vs. EC solid: p = 0.51 EO foam vs. EO solid: p = 0.64
	EC solid	y = 3.89 x + 0.79	0.39	p < 0.01	EC solid vs. EC foam: p = 0.63 EC solid vs. EO foam: p = 0.51 EC solid vs. EO solid: p = 0.39
	EO solid	y = 1.99 x - 0.85	0.05	p = 0.33	EO solid vs EC foam: p = 0.94 EO solid vs. EO foam: p = 0.64 EO solid vs. EC solid: p = 0.39
AP	EC foam	y = 1.92 x + 1.6	0.57	p < 0.001	EC foam vs. EO foam: p = 0.82 EC foam vs. EC solid: p = 0.15 EC foam vs. EO solid: p = 0.13
	EO foam	y = 1.72 x + 0.94	0.51	p < 0.001	EO foam vs. EC foam: p = 0.82 EO foam vs. EC solid: p = 0.07 EO foam vs. EO solid: p = 0.08
	EC solid	y = 0.66 x + 0.91	0.14	p = 0.106	EC solid vs. EC foam: p = 0.15 EC solid vs. EO foam: p = 0.07 EC solid vs. EO solid: p = 0.85
	EO solid	y = 0.77 x + 0.81	0.20	p < 0.05	EO solid vs. EC foam: p = 0.13 EO solid vs. EO foam: p = 0.08 EO solid vs. EC solid: p = 0.85