Table 3.
Classification results for assessment of balance, cognitive function and falls risk using either thigh or torso mounted sensors during the FTSS
| Torso sensor BBS model | Torso sensor MMSE model | Torso sensor Falls model | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Condition | All | M | F | Mean | All | M | F | Mean | All data | M | F | Mean |
| Acc (%) | 76.76 | 86.36 | 77.55 | 81.96 | 66.90 | 72.73 | 70.41 | 71.57 | 66.20 | 77.27 | 60.20 | 68.74 |
| Sens (%) | 46.34 | 25.00 | 36.36 | 30.68 | 29.79 | 61.11 | 31.03 | 46.07 | 60.29 | 71.43 | 59.57 | 65.50 |
| Spec (%) | 89.11 | 100.00 | 98.46 | 99.23 | 85.26 | 80.77 | 86.96 | 83.86 | 71.62 | 82.61 | 60.78 | 71.70 |
| PPV (%) | 63.33 | 100.00 | 92.31 | 96.15 | 50.00 | 68.75 | 50.00 | 59.38 | 66.13 | 78.95 | 58.33 | 68.64 |
| NPV (%) | 80.36 | 85.71 | 75.29 | 80.50 | 71.05 | 75.00 | 75.00 | 75.00 | 66.25 | 76.00 | 62.00 | 69.00 |
Note. Results are evaluated using Accuracy (Acc), Sensitivity (Sens), and Specificity (Spec) as well as Positive and Negative Predictive value (PPV and NPV, respectively). M and F refer to male and female models, respectively, while, Mean refers to the performance averaged across male and female models.
Abbreviations: BBS, Berg balance scale; FTSS, five times sit-to-stand test; MMSE, Mini-Mental State Examination.