Table 2.

Correlation between the Western Ontario and McMaster Universities index and muscle atrophy/fatty degeneration

	Muscle group	Pain	p value*	Stiffness	p value*	Function	p value*	Total	p value*
Atrophy	Gluteus maximus	0.16	0.299	0.31	0.041	0.23	0.130	0.25	0.104
	Gluteus medius and minimus	0.01	0.937	0.08	0.628	0.20	0.196	0.17	0.261
	Iliopsoas	0.26	0.090	0.25	0.109	0.32	0.032	0.34	0.025
	Hip adductors	0.21	0.174	0.27	0.079	0.31	0.043	0.32	0.037
	Quadriceps	0.25	0.096	0.35	0.022	0.31	0.039	0.34	0.026
	Hamstrings	0.16	0.311	0.23	0.133	0.30	0.046	0.30	0.048
Fatty degeneration	Gluteus maximus	0.17	0.257	0.33	0.030	0.36	0.019	0.36	0.019
	Gluteus medius and minimus	0.01	0.941	0.08	0.589	0.26	0.087	0.23	0.141
	Iliopsoas	0.29	0.061	0.34	0.021	0.41	0.003	0.41	0.003
	Hip adductors	0.28	0.188	0.34	0.025	0.43	0.006	0.44	0.006
	Quadriceps	0.18	0.252	0.26	0.094	0.29	0.054	0.30	0.050
	Hamstrings	0.26	0.087	0.40	0.007	0.39	0.009	0.41	0.006

*The correlation coefficient and p value were calculated using the Spearman rank correlation coefficient test