| Knee performance equation output/response | Target influence |
| Anterior MCL strain | Mid-flexion stability [34] [35] |
| Posterior MCL strain | Mid-flexion stability [34] [35] |
| Anterior LCL strain | Mid-flexion stability [34] [35] |
| Posterior LCL strain | Mid-flexion stability [34] [35] |
| Quadriceps angle | Anterior knee pain [5] |
| Quadriceps force | Anterior knee pain [6] |
| Patellofemoral contact force | Anterior knee pain [7] |
| Tibial implant force | Implant longevity [36] |
| Tibiofemoral joint contact force | Joint balance [37] |