| Previous user dynamic | Actual user posture | Jaz | User dynamic |
| Static | Erect | Jaz < 0.01 | Static |
| Static | Erect | 0.01 < Jaz < 0.02 | Dynamic |
| Static | Bowed | Jaz < 0.02 | Static |
| Static | Bowed | Jaz > 0.02 | Dynamic |
| - | Lied down | - | Static |
| Dynamic | - | Jaz < 0.008 | Static |
| Dynamic | - | Jaz > 0.008 | Dynamic |