| ADL | Activities of Daily Living | 
| BLE | Bluetooth Low Energy | 
| COTS | Commercial Off The Shelf | 
| HS | Heel Strike | 
| HAR | Human Activity Recognition | 
| HMM | Hidden Markov Model | 
| IC | Initial Contact | 
| IMU | Inertial Measurement Unit | 
| LMR | Locomotion Mode Recognition | 
| MARG | Magnetic Angular and Rate Gyroscope | 
| ML | Machine Learning | 
| LOOXV | Leave One Out Cross-Validation | 
| LSTM | Long Short-Term Memory | 
| RA | Ramp Ascent | 
| RD | Ramp Descent | 
| RNN | Recurrent Neural Network | 
| PK | Peak Swing | 
| S | Stop | 
| SA | Stair Ascent | 
| SD | Stair Descent | 
| SVM | Support Vector Machine | 
| TO | Toe Off | 
| W | Walking |