| AHRS | Attitude Heading Reference System |
| DCM | Direction Cosine Matrix |
| DEF | Default method |
| FC | Final Contact |
| IC | Initial Contact |
| IMU | Inertial Measurement Unit |
| LoA | Limits of Agreement |
| MAPE | Mean Absolute Percentage Error |
| MARG | Magnetic Angular Rate Gravity |
| OMC | Optical Motion Capture |
| RMSE | Root Mean Square Error |
| ROM | Range of Motion |
| TAF | Tuned and Filtered method |
| ZUPT | Zero Velocity Update |