Suction cup reference and ground electrodes were investigated for alternative of commonly used disc type surface electrode in electrodiagnostic study. Quantitative elctromyograplhy (Q-EMG) to evaluate difference of motor unit action potentials (MUAP) using disc type suction cup electrodes for referencd and ground electrode alternatively was done.
There was no statistically significant difference of parameters (duration, amplitude, area, and rise time) of MUQP between the groups.(P<0.05). We conclude that the suction cup electrodes are not resulting in change of MUAP parameters. And electrophysiologic study can be performed more comfortably and rapidly by using the suction cup electrodes.
Additionally, normal values of duration, amplitude, area, and rise time of MUAP in first dorsal interosseus that analysed using the suction cup electrodes were 5.78±0.99 msec, 439.08±100.91 ㎶, 508.46±116.24 mV. msec and 1.12±0.31 msec, respectively and using disc type surface electrodes were 5.83±0.96 msec, 445.29±99.47 ㎶, 517.32 + 125.15 mV. msec and 1.09±0.37 msec, respectively.
