Table 2.

Velocities of controls and boys with DMD at baseline and change over 1 year in velocities in boys with DMD for each timed function test.

		Age group (years)
Functional tests		5 – 6.9	7 – 8.9	9 – 10.9	11 – 12.9
10 meter walk/run	Control	2.96 ± 0.28	3.38 ± 0.20	3.46 ± 0.49	3.71 ± 0.44
	DMD BL	2.16 ± 0.35*	1.98 ± 0.48*	1.72 ± 0.52*	1.46 ± 0.37*
	DMD 1 year Change	0.07 ± 0.32	−0.33 ± 0.32†	−0.31 ± 0.28†	−0.32 ± 0.44†
4 Stairs	Control	0.67 ± 0.09	0.76 ± 0.10	0.76 ± 0.15	0.84 ± 0.21
	DMD BL	0.42 ± 0.15*	0.31 ± 0.12*	0.29 ± 0.15*	0.22 ± 0.08*
	DMD 1 year Change	0.02 ± 0.09	−0.05 ± 0.06†	−0.06 ± 0.08†	−0.06 ± 0.08
STS	Control	0.53 ± 0.10	0.70 ± 0.14	0.61 ± 0.10	0.66 ± 0.21
	DMD BL	0.32 ± 0.09*	0.24 ± 0.12*	0.19 ± 0.13*	0.10 ± 0.08*
	DMD 1 year Change	−0.01 ± 0.06	−0.07 ± 0.06†	−0.05 ± 0.04†	−0.05 ± 0.06

BL = Baseline;

^*: significant differences between controls and boys with DMD at baseline;

^†: significant differences over 1 year change in boys with DMD, p <0.05.