What are the six determinants of gait?
1. Pelvic rotation: lengthens limb as it prepares to accept weight.
2. Pelvic tilt: Pelvis on the side of the swinging leg is lowered to lower COG at midstance.
3. Knee flexion in stance: lowers COG and absorbs shock of impact at heel strike.
4. Foot mechanisms: Ankle PF at heel strike smooths curve of falling pelvis.
5. Knee mechanisms: after midstance, knee extends as ankle PFs and foot supinates.
6. Lateral displacement of pelvis: toward the stance limb to make COG over base of support.
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