| Keep Phase (KP) | Pressure Phase (PP) | ||
| For All Data (30) | 3.7 ± 3.3 | For All Data (30) | 6.7 ± 2.8 |
| Cheek (2) | 6.5 ± 0.0 | Cervix (1) | 7.0 ± 0.0 |
| Cervix (6) | 3.0 ± 1.7 | Breast (25) | 7.4 ± 2.0 |
| Shoulder (3) | 3.0 ± 1.7 | Waist (2) | 3.5 ± 0.0 |
| Breastbone and Rib (3) | 5.0 ± 1.7 | Without (2) | 0.0 ± 0.0 |
| Breast (7) | 8.1 ± 0.7 |
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| Without (9) | 0.0 ± 0.0 |
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