
tadalafil

placebo
  


start

end

start

end

P_{t}

P_{gt}


10 m, comfortable speed (time in seconds)

16.2 ± 13.0

16.3 ± 14.1

15.6 ± 8.2

13.2 ± 5.9

0.36

0.34

10 m, maximal speed (time in seconds)

9.8 ± 4.4

9.2 ± 4.5

7.9 ± 1.9

8.6 ± 2.8

0.76

0.06

2 minute walking test (distance in m)

106.9 ± 34.9

119.6 ± 46.3

92.5 ± 30.4

111.8 ± 32.6

0.01*

0.49

Walking questionnaire scores

27.5 ± 6.9

25.3 ± 10.6

27.6 ± 6.0

28.1 ± 5.7

0.44

0.22

 Results from the walking tests. The patients performed the 10 meter walking test three times at a comfortable speed, and again three times at maximal speed. The mean of the three tests is given ± SD. For the two minute walking test the patients had to walk for 2 minutes, and the distance in meters is given. For these three walking tests, a higher value indicates better performance, but for the questionnaire improvement is indicated by a lower value. The start and end times were when treatment started at t = 0 and ended at t = 12 weeks.
 P_{t} = Pvalue for differences over time; P_{gt} = Pvalue for interaction Group*Time