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Table 1 Quantitative analyses of motor unit potentials in the muscles studied

From: Limb girdle muscular dystrophy type 2G with myopathic-neurogenic motor unit potentials and a novel muscle image pattern

Muscle N = 20 MUP per muscle

Amplitude (μV) Mean (min-max)

Duration (ms) Mean (min-max)

Polyphase (%)

Right deltoideus

4322 (1221–10000)

6,1 (3,6-10,4)

45

Right triceps

5243 (679–8611)

10,1 (3,6-17,4)

30

Right biceps brachialis

1608 (774–3953)

6,3 (2,8-12,2)

35

Right first dorsal interosseous

5265 (1399–10000)

7,1 (1,8-13,6)

25

Left vastus lateralis

1329 (454–4233)

5,9 (3,4-9,0)

20

Right tibialis anterior

1619 (292–3047)

6,2 (3,4-9,0)

30

Left tibialis anterior

1279 (413–2472)

4,8 (2,2-10,6)

40

Right gastrocnemius medialis

NP

NP

NP

  1. MUP- motor unit potentials; NP- Not performed.