Table 2. Comparison of MFIQ, Clarkʼs test and Eccentric step test scores between groups.

Parameters	IPFPS (n=14)	CG (n=42)
MFIQ score
0	3 (21.4)	35 (83.3)
5	4 (28.6)	4 (9.5)
10	2 (14.3)	0
15	2 (14.3) 2 (4.8)
25	2 (14.3)	0
35	0	1 (2.4)
50	1 (7.1)	0
Rt. Side Clark’s test (+)	14 (100)	11 (26.2)
Rt. Side Clark’s test (−)	0	31 (73.8)
Lt. Side Clark’s test (+)	5 (35.7)	9 (21.4)
Lt. Side Clark’s test (−)	9 (64.3)	33 (78.6)
Rt. Side Eccentric step test (+)	4 (28.6)	0
Rt. Side Eccentric step test (−)	10 (71.4)	42 (100)
Lt. Side Eccentric step test (+)	3 (21.4)	0
Lt. Side Eccentric step test (−)	11 (78.6)	42 (100)

Values are n (%). IPFPS, Intrinsic Patellofemoral Pain Syndrome; CG, control group; MFIQ, Modified Functional Index Questionnaire