No. MUP duration (ms) Light contraction amplitude (uv) Percentage of polyphasic MUP (%) Strong contraction amplitude (mv)
MSA 34 13.00±4.01 534.59±187.22 40.07±24.36 1.21±0.71
Non-MSA 48 10.40±1.90 497.93±193.59 27.98±13.57 1.18±0.56
t   3.515 0.856 2.511 0.130
P value   0.001* 0.395 0.016* 0.897
Table 1: EAS-EMG results between MSA and non-MSA groups. * P<0.05 Data was standard normal distribution. T test was used for analysis.