Correction to: Biomed Eng OnLine (2018) 17:27 https://doi.org/10.1186/s12938-018-0460-1
After the publication of the original article work , it was highlighted that the circuit information and the A/D converter used for acquiring sEMG signal were not correctly reported in “Methods” section. The circuit included a 10 Hz high-pass filter instead of 10 Hz notch filter as stated in the original article. The A/D converter was ADS7818, instead of ADS1198 as stated in the original paper. The authors apologize to the readers for the inconvenience.