TABLE II.

Speed and Intersegmental Range of Motion

	Group			P Value
	Calcaneal Fracture	Subtalar Arthrodesis	Control	Calcaneal Vs. Control	Arthrodesis Vs. Control	Arthrodesis Vs. Calcaneal
Speed (m/s)
Normal	0.94	0.73	1.18	0.004	<0.0001	0.086
Slow			0.89	0.533	0.052
Hindfoot-tibia loading phase* (deg)
Flexion-extension	7.45 ± 2.95 (4.12-16.00)	8.47 ± 1.42 (5.91-9.99)	10.22 ± 2.92 (3.86-15.98)	0.009	0.155	0.374
Abduction-adduction	11.13 ± 4.25 (5.94-18.56)	8.56 ± 4.32 (5.62-17.04)	12.00 ± 2.95 (7.22-18.09)	0.468	0.017	0.198
Inversion-eversion	4.97 ± 1.86 (3.28-9.71)	3.94 ± 0.83 (2.99-5.54)	5.89 ± 1.78 (2.39-9.25)	0.150	<0.0001	0.100
Hindfoot-tibia push-off phase* (deg)
Flexion-extension	7.32 ± 2.78 (3.67-11.64)	7.98 ± 2.52 (4.55-12.44)	11.27 ± 3.31 (5.32-18.35)	0.001	0.016	0.587
Abduction-adduction	12.83 ± 4.06 (6.86-21.83)	15.81 ± 3.63 (11.39-23.06)	10.39 ± 2.92 (5.68-16.96)	0.042	<0.0001	0.106
Inversion-eversion	6.96 ± 3.58 (1.95-13.03)	4.01 ± 2.06 (2.09-8.65)	9.15 ± 3.04 (4.60-16.37)	0.057	<0.0001	0.048
Forefoot-tibia loading phase* (deg)
Flexion-extension	12.72 ± 2.33 (8.21-17.06)	11.91 ± 3.16 (8.52-17.87)	14.78 ± 2.31 (9.54-20.05)	0.014	0.009	0.505
Abduction-adduction	11.02 ± 4.09 (5.94-18.75)	8.68 ± 4.50 (4.39-17.31)	12.21 ± 3.81 (5.43-19.31)	0.384	0.038	0.235
Inversion-eversion	7.73 ± 2.82 (5.17-11.48)	6.07 ± 1.70 (3.47-8.31)	9.97 ± 2.78 (5.08-15.87)	0.017	0.001	0.082
Forefoot-tibia push-off phase* (deg)
Flexion-eversion	21.31 ± 7.45 (4.98-30.38)	18.52 ± 5.13 (12.42-29.48)	26.30 ± 5.64 (16.11-36.07)	0.028	0.002	0.365
Abduction-adduction	9.96 ± 4.19 (4.87-21.38)	13.56 ± 4.22 (7.04-20.79)	10.50 ± 3.88 (5.57-21.43)	0.695	0.068	0.072
Inversion-eversion	11.05 ± 4.64 (5.93-18.92)	8.08 ± 1.66 (5.89-11.69)	15.58 ± 3.40 (10.60-24.20)	0.006	<0.0001	0.051

^*Values are presented as the mean and the standard deviation with the range in parentheses.