Table 2.

Coefficient of variation (CV) of ground reaction force and spatiotemporal and joint angle variables by insole colour and speed conditions.

Variables	Speed	Red	Blue	White	ANOVA (P value)			Post hoc
					Colour	Speed	Interaction
Peak impact force (%)	S	2.91 (1.26)	2.92 (0.92)	2.80 (1.08)	0.895	0.420	0.134
	P	2.20 (0.89)	2.57 (0.78)	2.94 (1.46)
	F	3.25 (2.58)	2.49 (0.89)	2.48 (0.71)
Max loading rate (%)	S	14.26 (4.20)	11.74 (4.56)	14.13 (5.06)	0.033 ∗	0.393	0.817	Red > blue
	P	14.70 (5.82)	11.98 (5.16)	13.18 (3.89)
	F	13.27 (5.34)	11.83 (3.90)	11.99 (3.18)
Contact time (%)	S	3.26 (1.63)	3.04 (1.27)	3.02 (2.28)	0.697	0.061	0.460	—
	P	2.75 (0.85)	2.37 (1.24)	2.76 (0.82)
	F	2.81 (0.92)	2.97 (1.64)	2.41 (0.88)
Stride length (%)	S	1.64 (0.68)	1.36 (0.57)	1.44 (0.73)	0.780	0.861	0.254	—
	P	1.37 (0.37)	1.37 (0.59)	1.71 (0.84)
	F	1.58 (1.41)	1.48 (0.60)	1.19 (0.43)
Ankle dorsiflexion at touchdown (%)	S	7.89 (3.38)	10.47 (5.44)	9.32 (4.75)	0.208	0.652	0.959	—
	P	8.87 (3.14)	8.85 (5.12)	8.50 (4.55)
	F	8.94 (6.65)	7.38 (2.65)	10.00 (5.55)
Ankle inversion at touchdown (%)	S	55.00 (17.28)	109.19 (122.31)	64.67 (75.11)	0.570	0.108	0.446	—
	P	52.83 (23.10)	67.42 (60.17)	56.96 (32.80)
	F	68.62 (43.70)	105.76 (134.26)	135.91 (226.86)
Ankle sagittal RoM (%)	S	9.47 (3.36)	7.40 (2.77)	7.32 (3.50)	0.182	0.038 ∗	0.144	S > P, F
	P	7.01 (2.37)	6.82 (2.39)	6.83 (3.16)
	F	7.03 (1.66)	8.09 (3.41)	6.23 (2.64)
Ankle frontal RoM (%)	S	16.54 (4.84)	18.51 (6.82)	18.13 (7.76)	0.643	0.356	0.508	—
	P	17.64 (7.31)	17.84 (8.39)	17.42 (6.07)
	F	17.51 (5.29)	17.48 (12.03)	14.41 (4.11)

S, slow; P, preferred; F, fast. ^∗Indicating a significant effect, P < 0.05.