| Functioning regime | Level of load | Criteria | |
| RI:М, %* | N-M:RI* | ||
| Homeostasis | Norm | 50 ± 5 | 0.8 - 1.2 |
| Stress | Admissible | 45 - 35 | 1.2 - 2.0 |
| Resistance | Maximum admissible | 35 - 25 | 2.0 - 3.0 |
| Adaptation exhaustion | Critical | 25 - 15 | 3.0 - 5.0 |
| Repression | Inadmissible | <10 - 15 | >5.0 |