Table 3 Sensitivity of wheelchair model to set parameter changes
From: Manual wheelchair downhill stability: an analysis of factors affecting tip probability
| Â | Parameter variation | Percentage change in correct simulations |
|---|---|---|
Torso inertia | 50–150% of original | 4.5% |
Thigh inertia | 50–150% of original | 7.6% |
Wheel unloading characteristics | 50–150% of original | 21.2% |
Wheel loading characteristics | 50–150% of original | 6.1% |
Rear wheel friction | 50–150% of original | 10.6% |
Caster wheel friction | 50–150% of original | 1.5% |
Position offset between user and base of backrest | ±1.5 cm from original | 6.1% |
Position offset between user and top of backrest | ±1.5 cm from original | 10.6% |