Table 3 Comparison of EAS-EMG parameters between MSA and PD groups

Number of cases

26

22

-

15

10

-

Average duration time (ms)

12.15 ± 1.74

8.59 ± 1.74

0.000

11.80 ± 1.57

9.77 ± 1.37

0.003

Average amplitude (μV)

607.52 ± 156.47

577.07 ± 145.22

0.491

641.97 ± 122.59

528.85 ± 178.16

0.072

Polyphase Wave Ratio (%)

48.04 ± 13.80

34.09 ± 16.00

0.002

51.78 ± 19.02

29.51 ± 12.16

0.002

Satellite potential occurrence rate (%)

92.3(24/26)

27.3(6/22)

0.000

93.3 (14/15)

30 (3/10)

0.001