Table 1.

Group demographics (Mean and SE) including preferred treadmill walking speed and participant reported symptoms at baseline and the change with the 20MTW. vNRS: verbal numerical rating scale pain measure

Normal speed	Age	BMI (kg/m2)	Treadmill Speed (m/s)	Baseline vNRS	Change in pain (vNRS)	KOOS Pain	KOOS ADL
Pain Flare (n = 8; 3F)	62.1 (1.9)	25.89 (1.47)	0.92 (0.13)	2.63 (1.00)	1.50 (0.27)a	59.1 (7.09)	68.1 (8.5)
No Flare (n = 11;10F)	62.6 (1.9)	25.69 (1.01)	0.90 (0.07)	1.36 (0.53)	−0.05 (0.11)a	70.7 (4.19)	79.3 (3.0)
Controls (n = 17;14F)	64.5 (1.5)	24.3 (0.9)	1.08 (0.06)	–	–	–	–

^aindicates a significant difference between OA groups