| BWM | Body worn monitor |
| CV | Coefficient of variation |
| HOA | Healthy older adults |
| LRA | Long range autocorrelation |
| MDS-UPDRS | Movement Disorder Society-Unified Parkinson’s Disease Rating Scale |
| PD | Parkinson’s disease |
| SampEnt | Sample entropy |
| TP1 | Time-point 1 (36 months after initial diagnosis for people with Parkinson’s) |
| TP2 | Time-point 2 = TP1 + 18 months |
| TP3 | Time-point 2 = TP2 + 18 months |