Table 4 Comparison of fasciculation grades for each muscle group between ALS and non-ALS patients

Proximal flexors in upper limbs

176

2 (1–4)

108

0 (0–0)

181.93

78.24

−10.978

< 0.001

Proximal extensors in upper limbs

176

2 (1–4)

108

0 (0–0)

181.26

79.33

−10.855

< 0.001

Distal flexors in upper limbs

176

2 (1–4)

108

0 (0–1)

178.60

83.68

−9.816

< 0.001

Distal extensors in upper limbs

176

2 (0–3)

108

0 (0–0.75)

170.49

96.89

−7.827

< 0.001

Proximal flexors in lower limbs

176

2 (1–4)

108

0 (0–0)

180.58

80.44

−10.513

< 0.001

Proximal extensors in lower limbs

176

2 (1–3)

108

0 (0–0)

177.66

85.21

−9.723

< 0.001

Distal flexors in lower limbs

176

2 (1–2)

108

0 (0–1)

172.50

93.62

−8.274

< 0.001

Distal extensors in lower limbs

176

1 (0–2)

108

0 (0–1)

167.47

101.81

−6.992

< 0.001

Suprahyoid muscles

88

0 (0–1)

54

0 (0–0)

81.01

56.00

−4.885

< 0.001

Paravertebral muscles

176

1 (0–2)

108

0 (0–0)

175.51

88.70

−9.890

< 0.001