| HD-sEMG | High-Density Surface Electromyography |
| RMS | Root Mean Square |
| MUAP | Motor Unit Action Potential |
| SD | Single Differential |
| EAO | External Abdominal Oblique |
| SDP | Superficial Descending Pectoral |
| ARV | Average Rectified Value |
| μV | microvolts |
| Hz | Hertz |
| ms | milliseconds |
| MNF | Mean Frequency |
| MDF | Median Frequency |