Hip Drive - Observed in the Plantargrade Foot
Gravity Drive - Observed in Rothbarts Foot orThe Preclinical Clubfoot Deformity
Gravity Drive Mechanics (Abnormal Pronation)
Gravity Drive - Left Foot (Rothbarts Foot)
Left foot is pronating at Midstance due to the pull of gravity on the structurally unstable foot.
Inventor and Designer of Postural Control Insoles
Hip Drive Mechanics (Normal Pronation)
Hip Drive - Right Foot
Right foot is supinating at Midstance due to the clockwise rotation of the hip.
Normal Foot Motion - More Correctly referred to as Hip Drive. This motion is observed in the Plantargrade Foot.
Discussion Above Animation
Zitzlesperger S 1960.The mechanics of the foot based on the concept of the skeleton as a statically indetermined space framework. Clinical Orthopedics, 16:47-63
Rothbart BA 1973. Part I. Biomechanical analysis of a normal gait pattern. Journal Canadian Podiatry Association, (3):3-7.
Rothbart BA 1973. Part II. Biomechanical analysis of a normal gait pattern. Journal Canadian Podiatry Association, (4):1-12.
Abnormal Foot Motion - More Correctly referred to as Gravity Drive. This motion is observed in the Rothbarts Foot and PreClinical Clubfoot Deformity