Table 2.

Clinical features of the present MFM patient cohort.

Patient no.	Gender	Age of onset (year)	Duration (year)	Weakness pattern	Joint contractures	CK (U/L)	Cardiac evaluation
1	M	37	5	Lower proximal	–	747	PI/right heart + LA enlargement
2	M	33	8	Upper + lower proximal + distal	–	935.7	PI/LA enlargement
3	M	33	3	Lower distal	–	1366	Frequent APB + CRBBB + LAFB/LA enlargement
4	F	45	8	Upper + lower proximal + distal	–	383.4	NA
5	M	42	1	Lower distal	–	227.7	CRBBB
6	M	30	6	Lower proximal	–	1568.2	CRBBB/LA enlargement
7	M	48	19	Upper + lower proximal + distal	–	75.3	PI
8	M	13	20	Upper + lower proximal + distal	–	1016.5	Normal
9	F	5	20	Lower distal	Achilles tendon/rigid spine	374.2	Obstructive hypertrophic cardiomyopathy
10	F	9	10	Lower proximal + distal; scapular winging	Achilles tendon/talipes cavus/scoliosis	1269.7	Mild mitral + tricuspid + pulmonary valve regurgitation
11	M	37	10	Upper distal	MCP/PIP/elbow/scoliosis	691.3	NA
12	F	35	6	Lower proximal	–	259.2	Normal
13	F	6	2	Lower proximal + distal	–	450.8	Mild mitral + tricuspid regurgitation
14	M	42	10	Upper + lower distal	–	302.1	LAFB/LA enlargement
15	M	15	5	Upper + lower proximal + distal	Achilles tendon/scoliosis	340.5	Atrial septal defect-closed
16	F	1	27	Lower proximal + distal	Talipes cavus/scoliosis	375.1	Mild mitral + tricuspid + pulmonary valve regurgitation
17	F	1	26	Lower proximal + distal	Talipes cavus/scoliosis	296	Normal
18	M	18	5	Lower proximal	–	993.2	Mild mitral + tricuspid regurgitation

CRBBB, complete right bundle branch block; LA, left atrium; LAFB, left anterior fascicular block; NA, not available; PI, pacemaker implant.