Table 1 Recommended configurations for autonomous FOG identification from accelerometry with corresponding performance metrics
System | # Sensors | Threshold | Window | ICC number of FOG | ICC percent time frozen | Sensitivity | Specificity |
|---|---|---|---|---|---|---|---|
'reference' | 7 | 3 | 7.5 s | 0.75 | 0.80 | 84.3 | 78.4 |
shank (L or R) | 1 | 3 | 7.5 s | 0.75 | 0.73 | 86.2 | 66.7 |
back (lumbar) | 1 | 3 | 10 s | 0.63 | 0.49 | 86.8 | 82.4 |