Table 1 Result of Foot Pressure
Subjects | Mask | Contact area (cm2) | Maximum force (N) | ||||
|---|---|---|---|---|---|---|---|
| Â | Â | A | B | C | A | B | C |
Young | Total | 142.877±6.584 | 131.852±10.934 | 142.342±5.754 | 711.105±59.923 | 740.921±95.996 | 701.841±60.198 |
|  | M1 | 68.663±1.716 | 63.023±5.373 | 68.629±0.584 | 621.023±89.605 | 606.018±168.64 | 601.982±86.053 |
|  | M2 | 33.443±5.540 | 29.811±4.185 | 33.331±5.175 | 133.911±8.162 | 113.943±21.044 | 140.778±14.482 |
|  | M3 | 40.770±0.000 | 39.019±2.200 | 40.383±0.753 | 468.385±42.442 | 500.382±46.850 | 471.992±27.290 |
Elderly | Total | 139.403±2.996 | 128.966±5.757 | 138.099±4.256 | 592.178±95.362 | 605.047±81.495 | 596.161±100.23 |
|  | M1 | 68.119±3.213 | 64.589±5.796 | 68.221±3.705 | 526.524±75.498 | 545.776±74.082 | 546.801±90.669 |
|  | M2 | 30.514±2.751 | 24.877±5.708 | 29.140±4.599 | 110.238±25.983 | 78.007±31.900 | 96.843±29.870 |
|  | M3 | 40.770±0.000 | 39.503±1.290 | 40.736±0.060 | 386.392±94.017 | 428.618±84.020 | 397.017±94.609 |
Subjects | Mask | Peak pressure (kPa) | Maximum mean pressure (kPa) | ||||
| Â | Â | A | B | C | A | B | C |
Young | Total | 270.869±70.830 | 264.823±50.235 | 247.067±50.477 | 86.504±3.965 | 99.139±8.358 | 88.268±7.415 |
|  | M1 | 258.458±83.422 | 243.390±75.894 | 235.239±59.953 | 94.519±9.360 | 101.522±19.698 | 93.791±10.480 |
|  | M2 | 84.522±14.058 | 87.059±19.501 | 88.965±22.004 | 46.799±7.466 | 48.141±11.532 | 47.585±8.937 |
|  | M3 | 184.082±25.588 | 213.283±16.517 | 190.809±25.685 | 115.573±11.070 | 130.126±11.114 | 119.693±10.816 |
Elderly | Total | 189.973±27.832 | 213.509±21.026 | 213.564±45.475 | 76.358±3.203 | 85.410±3.122 | 77.770±7.078 |
|  | M1 | 188.168±27.811 | 212.000±20.270 | 213.564±45.475 | 81.126±5.774 | 87.280±3.075 | 82.372±8.326 |
|  | M2 | 66.064±6.977 | 67.977±18.067 | 57.432±9.937 | 39.860±6.977 | 38.683±7.441 | 36.246±6.136 |
|  | M3 | 134.086±33.163 | 165.232±33.123 | 140.901±30.023 | 94.773±23.062 | 110.738±22.902 | 97.650±23.442 |