Table 3 Gait parameters at preferred speed by LUCAS Functional Ability Index (LUCAS FAI)

 1. Velocity [cm/s]

133.9 ± 18.6

112.2 ± 20.9

97.1 ± 20.9

< 0.001

< 0.001

< 0.001

< 0.001

 2. Stride length [cm]

139.0 ± 16.0

121.7 ± 17.2

109.2 ± 18.8

< 0.001

< 0.001

< 0.001

< 0.001

 3. Walk ratio^a [cm/(steps/min)]

0.60 ± 0.08

0.55 ± 0.08

0.52 ± 0.09

< 0.001

< 0.001

< 0.001

< 0.001

 4. Single support time [ms]

394 ± 27

397 ± 33

400 ± 37

0.368

0.364

0.125

0.438

 5. Double support time [ms]

255 ± 46

305 ± 66

342 ± 71

< 0.001

< 0.001

< 0.001

< 0.001

 6. Step width^b [cm]

9.4 ± 2.7

9.7 ± 3.2

10.8 ± 3.9

< 0.001

0.360

< 0.001

0.002

 7. Step width^b CV^c [%]

24.9 ± 16.4

25.9 ± 14.3

24.3 ± 15.7

0.485

0.598

0.739

0.228

 8. Stride length CV^c [%]

2.9 ± 1.5

4.0 ± 1.9

4.8 ± 2.9

< 0.001

< 0.001

< 0.001

< 0.001