Figure 1 : Qualitative analysis of single leg loading (QASLS).
| QASLS | Task : Single leg squat | Score | |
| Left | Right | ||
| Arm strategy | Excessive arm movement to balance | -- | -- |
| Trunk alignment | Leaning in any direction | -- | -- |
| Pelvic plane | Loss of horizontal plane | -- | -- |
| Excessive tilt or rotation | -- | -- | |
| Thigh motion | WB thigh moves into hip adduction | -- | -- |
| NWB thigh not held in neutral | -- | -- | |
| Knee position | Patella pointing towards 2nd toe (noticeable valgus) | -- | -- |
| Patella pointing past inside of foot (significant valgus) | -- | -- | |
| Steady stance | Touches down with NWB foot | -- | -- |
| Stance leg wobbles noticeably | -- | -- | |