Clinical, Histological, and Immunohistochemical Findings in Inclusion Body Myositis

Table 2

Evaluation of muscle strength (MRC: Medical Research Council, 1981) in 18 patients with sIBM.

Case	NF	NE	RD	LD	RB	LB	RT	LT	RWF	LWF	RWE	LWE	RHFF	LHFF	RHFE	LHFE	ABD	RTF	LTF	RTE	LTE	RLF	LLF	RLE	LLE	RFF	LFF	RFE	LFE	RFFF	LFFF	RFFE	LFFE
1	4	4	4	4	4	4	4	4	3	3	3	3	3	3	5	5	5	3	3	3	3	3	3	3	3	5	5	5	5	5	5	5	5
2	5	5	5	5	4	4	5	5	3	3	5	5	3	3	5	5	3	3	3	5	5	5	5	4	4	4	4	5	5	5	5	5	5
3	5	5	4	4	4	4	4	4	3	3	4	4	3	3	4	4	5	4	4	4	4	4	4	4	4	3	3	4	4	5	5	5	5
4	5	5	5	5	5	5	5	5	4	4	5	5	4	4	5	5	5	5	4	5	5	5	5	4	4	5	5	5	5	5	5	5	5
5	4	4	5	5	4	4	3	3	4	4	5	5	3	3	5	5	5	3	3	3	3	3	3	3	3	5	4	5	4	5	4	5	4
6	5	5	5	5	4	4	5	5	4	4	5	5	4	4	5	5	5	5	5	5	5	4	4	4	4	5	5	5	5	5	5	5	5
7	5	5	5	5	5	5	5	5	4	4	5	5	4	4	5	5	5	4	4	4	4	4	3	4	3	5	5	5	5	5	5	5	5
8	3	3	4	4	4	4	4	4	3	3	4	4	3	3	4	4	4	2	2	2	2	3	3	2	2	4	4	4	4	4	4	4	4
9	5	5	5	5	4	4	4	4	4	4	5	5	4	4	5	5	5	4	4	5	5	5	5	4	4	5	5	5	5	5	5	5	5
10	5	5	4	4	2	3	3	3	4	4	3	3	3	3	3	3	4	2	2	2	2	4	4	3	3	4	4	4	4	4	4	4	4
11	5	5	4	4	5	4	4	4	4	4	5	5	5	4	4	4	5	5	5	5	5	4	4	4	4	4	4	5	5	4	4	5	5
12	4	4	4	4	4	4	4	4	3	3	5	5	3	3	5	5	5	4	4	4	4	5	5	3	3	4	0	5	5	4	0	5	4
13	4	5	4	4	4	4	4	4	5	5	5	5	4	4	4	4	4	3	3	4	4	4	4	4	4	5	5	4	4	5	5	5	5
14	4	4	4	4	4	4	5	5	4	4	5	5	4	4	5	5	5	4	4	3	4	4	4	3	4	5	5	5	5	5	5	5	5
15	4	4	4	5	4	4	5	5	4	4	5	5	4	4	5	5	5	4	3	4	3	5	5	4	4	5	4	5	5	5	5	5	5
16	4	4	5	5	4	4	3	3	3	2	4	4	3	2	4	4	4	4	4	4	4	3	3	3	2	3	2	4	4	4	4	4	4
17	5	5	5	5	4	4	4	4	4	4	5	5	4	4	5	5	5	4	4	5	5	5	5	4	4	5	5	5	5	5	5	5	5
18	5	5	4	4	4	4	4	4	4	3	5	4	4	3	5	4	4	4	4	4	4	4	4	2	2	3	3	4	4	4	4	4	4

NF = neck flexors. NE = neck extensors. RD = right deltoid. LD = left deltoid. RB = right biceps. LB = left biceps. RT = right triceps. LT = left triceps. RWF = right wrist flexors. LWF = left wrist flexors. RWE = right wrist extensors. LWE = left wrist extensors. RHFF = right hand fingers flexors. LHFF = left hand fingers flexors. RHFE = right hand fingers extensors. LHFE = left hand fingers extensors. ABD = abdominal muscles. RTF = right thigh flexors. LTF = left thigh flexors. RTE = right thigh extensors. LTE = left thigh extensors. RLF = right leg flexors. LLF = left leg flexors. RLE = right leg extensors. LLE = left leg extensors. RFF = right foot flexors. LFF = left foot flexors. RFE = right foot extensors. LFE = left foot extensors. RFFF = right foot fingers flexors. LFFF = left foot fingers flexors. RFFE = right foot fingers extensors. LFFE = left foot fingers extensors. Muscle strength degrees: 5 = normal. 4 = against gravity/light resistance. 3 = only against gravity. 2 = joint movement without overcoming the gravity. 1 = muscle contraction without joint movement. 0 = no muscle contraction.