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The crossover point is defined as the negative pressure at which the sponge crossed over from decreasing the pressure of the ball to increasing the pressure of the ball
| Circumferential % | Crossover point (-mmHg) | The greatest decrease in pressure (mm water change) | The greatest increase in pressure (mm water change) |
| 100 | 137.6433486 | -4.204 | 13.493 |
| 90 | 141.2019491 | -9.578 | 15.704 |
| 66 | 315.2897303 | -12.798 | 5.415 |
| 50 | 156.2557498 | -5.616 | 3.804 |
| 25 | 288.5757807 | -0.842 | 0.471 |
