Table 2.

WOMAC, VAS, 20-MWT and 5-CST Score Changes

Groups	Times				Effect over time P value
	Baseline	4 weeks	8 weeks	12 weeks	Group effect	Time effect	Group/time interaction
WOMAC index, mean ± SD
WOMAC total
HE group	32.92±19.19	31.86±18.90	30.06±17.83	28.19±17.84	0.188	<0.001	0.023
SKD group	32.25±15.65	29.42±14.31	22.28±14.08	19.83±14.74
WOMAC pain
HE group	6.61±3.98	6.03±3.97	5.28±4.19	5.14±3.84	0.148	<0.001	0.03
SKD group	6.31±3.26	5.31±2.94	3.89±2.91	3.17±2.67
WOMAC stiffness
HE group	2.69±1.86	2.64±1.79	2.47±1.52	2.22±1.53	0.583	<0.001	0.572
SKD group	2.64±1.46	2.47±1.30	2.17±1.32	2.03±1.28
WOMAC function
HE group	23.61±13.85	23.19±13.89	22.31±12.66	20.83±13.09	0.188	<0.001	0.019
SKD group	23.31±11.72	21.64±10.65	16.22±10.52	14.64±11.59
VAS index, mean ± SD
HE group	24.78±23.10	19.50±13.60	20.14±15.16	18.08±17.13	0.215	<0.001	0.201
SKD group	23.69±22.68	18.47±17.66	15.25±15.41	12.14±14.40
20-MWT, mean ± SD, seconds
HE group	19.32±6.09			17.58±3.32	0.232	<0.001	0.977
SKD group	18.22±4.35			16.47±2.63
5-CST, mean ± SD, seconds
HE group	16.7±6.23			14.98±4.67	0.54	2.439	0.616
SKD group	15.76±5.4			14.45±5.11