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

Table 5 Walking tests.

	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 = P-value for differences over time; P_gt = P-value for interaction Group*Time

ISSN: 1471-2474