TABLE 5.
Gait and Posture classification performance across sensor configurations (setups).
| Lying | Sitting | Standing | Walking | Stairs | Overall | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Setup | Sens | Spec | PPV | Sens | Spec | PPV | Sens | Spec | PPV | Sens | Spec | PPV | Sens | Spec | PPV | Acc | Accbal |
| All | 93 ± 15.3 | 99 ± 0.6 | 86 ± 14.5 | 87 ± 11.7 | 96 ± 3.3 | 86 ± 10.6 | 87 ± 7.1 | 92 ± 5.2 | 84 ± 11.8 | 84 ± 12.7 | 95 ± 3.5 | 82 ± 16.3 | 75 ± 5.3 | 98 ± 2.5 | 85 ± 4.4 | 85 ± 7.7 | 86 ± 10.2 |
| No chest | 96 ± 7.5 | 99 ± 0.7 | 86 ± 13.1 | 84 ± 11.5 | 94 ± 3.2 | 82 ± 12.8 | 85 ± 7.4 | 91 ± 6 | 84 ± 11.6 | 85 ± 12.1 | 95 ± 3.8 | 82 ± 16.7 | 73 ± 5.1 | 98 ± 2.2 | 83 ± 4.5 | 84 ± 8.4 | 85 ± 9.5 |
| Non-aff. | 92 ± 15.1 | 99 ± 0.8 | 85 ± 10 | 79 ± 10.6 | 92 ± 2.7 | 76 ± 12.6 | 81 ± 5.9 | 90 ± 5 | 81 ± 10.3 | 84 ± 14.2 | 95 ± 3.5 | 81 ± 16 | 69 ± 4.7 | 98 ± 3.2 | 79 ± 4.5 | 81 ± 7.1 | 82 ± 9.3 |
| Aff. | 86 ± 26.8 | 98 ± 1.9 | 77 ± 20.2 | 78 ± 11.4 | 91 ± 5.5 | 73 ± 15.7 | 81 ± 8.6 | 90 ± 5.2 | 82 ± 10.9 | 83 ± 10.5 | 95 ± 4 | 81 ± 16.7 | 67 ± 5.7 | 98 ± 1.3 | 75 ± 3.9 | 79 ± 7.5 | 79 ± 9.4 |
| Wrists | 69 ± 24.9 | 94 ± 5 | 49 ± 23.3 | 64 ± 10.3 | 87 ± 6.3 | 63 ± 19.9 | 66 ± 11.8 | 86 ± 5.1 | 71 ± 9.9 | 71 ± 14.8 | 91 ± 4.9 | 69 ± 19.7 | 61 ± 6.2 | 98 ± 1.9 | 68 ± 4 | 66 ± 9.3 | 67 ± 8 |
Mean and standard deviations of performance measures in %. Acc, accuracy; Accbal, balanced accuracy; Sens, sensitivity; Spec, specificity; PPV, positive predictive value.