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Table 5 Walking tests.

From: Effect of tadalafil on blood flow, pain, and function in chronic cold Complex Regional Pain Syndrome: a randomized controlled trial

  tadalafil placebo   
  start end start end Pt Pgt
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
  1. 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.
  2. Pt = P-value for differences over time; Pgt = P-value for interaction Group*Time