No. MUP duration(ms) Light contraction amplitude (uV) Percentage of polyphasic MUP (%) Strong contraction amplitude (uV)
EAS-EMG 34 13.00±4.01 534.59±187.22 40.07±24.36 1.00 (0.80-1.35)
US-EMG 31 12.79±3.21 249.00(210.00-340.00) 23.02±19.29 0.6 (0.50-1.15)
statistics   Z=1.926 Z=5.281 4.484 Z=6.896
P value   0.054 0.000 0.000 0.000
Table 4: Comparison of indexes obtained in EAS-EMG and US-EMG of MSA group.