Research Article
Applicability of Smartphone for Dynamic Postural Stability Evaluation
Table 1
Comparison of dynamic balance parameters obtained by Sigma Balance Platform and smartphone among women and men.
| Plane | Men (n=48) | Women (n=37) | d | Mean | SD | Min | Max | Mean | SD | Min | Max |
| Angular path measured by smartphone [rad] |
| Frontal | 264.09 | 95.48 | 108.60 | 539.13 | 230.60 | 98.39 | 59.91 | 454.12 | 33.49 | Sagittal | 273.45 | 122.35 | 53.07 | 552.49 | 207.89 | 98.62 | 63.13 | 450.16 | 65.56 |
| GCP path measured by Sigma Balance Platform [mm] |
| Frontal | 24.52 | 8.79 | 9.95 | 49.76 | 21.33 | 9.15 | 5.47 | 43.03 | 3.19 | Sagittal | 24.46 | 10.89 | 4.15 | 47.20 | 18.91 | 8.69 | 6.08 | 40.17 | 5.55 |
| Body sway variability measured by smartphone |
| Frontal | 3.62 | 1.13 | 1.64 | 6.46 | 3.36 | 1.60 | 0.65 | 7.00 | 0.27 | Sagittal | 4.35 | 1.82 | 0.52 | 7.89 | 3.39 | 1.89 | 1.04 | 7.89 | 0.96 |
| Body sway variability measured by Sigma Balance Platform |
| Frontal | 0.31 | 0.09 | 0.14 | 0.54 | 0.28 | 0.13 | 0.07 | 0.58 | 0.02 | Sagittal | 0.36 | 0.14 | 0.04 | 0.64 | 0.28 | 0.15 | 0.08 | 0.64 | 0.08 |
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GCP: geometric center of platform, p<0.05. |