Table 2.

Results summary of ultrasound findings before (baseline) and after running (follow-up)

	Baseline follow	Up p	Baseline follow
Knee joints with suprapatellar effusion (%)	105 (50.0)	100 (47.6)	0.696
Mean amount of suprapatellar effusion (mm with SD)	15.5 ± 17.0	13.9 ± 15.9	0.151
Knee joint baseline-to-follow-up comparison (%)
unchanged joint finding at follow-up		140 (66.7)
deteriorated joint finding at follow-up		32 (15.2)
improved joint finding at follow-up		38 (18.1)
Prevalence of patellar tendon hypervascularity (%)	1 (0.5)	21 (10.0)	< 0.001
Talocrural joints with effusion (%)	38 (18.1)	33 (15.7)	0.603
Mean amount of talocrural effusion (mm with SD)	5.2 ± 11.8	4.7 ± 11.6	0.565
Talocrural joint baseline-to-follow-up comparison (%)
unchanged joint finding at follow-up		173 (82.3)
deteriorated joint finding at follow-up		15 (7.2)
improved joint finding at follow-up		22 (10.5)