2018 Volume Annual56 Issue Abstract Pages S98
[Object] We evaluated the low frequency noise generated by two types of dispersive electrodes.[Method] Eight healthy subjects were enrolled in this study. The dispersive electrodes were set to the femur using two types of electrodes: conductivity type and capacitive type. The recording electrodes were placed on the inner vastus medialis (VM) and the rectus femoris muscle (RF). The low frequency noises (1-200 Hz) were compared between two types of dispersive electrodes.[Result] With respect to noises in VM, the mean volumes with capacitive type and conductivity type were 53.9± 3.16 dB and 48.0±1.03 dB, respectively. The mean RF noises with capacitive and conductivity type were 63.2± 1.73 dB, 56.5±1.51 dB, respectively. The noises of the capacitive type were significantly larger than the conductivity type.[Discussion] Our results indicate that the capacitive type of dispersive electrodes more affect IOM recordings than the conductivity type.
