
Normal Foot Motion. Foot is driven by hip drive (normal pronation: internal hip rotation, pronates the ipsilateral foot; external hip rotation, supinates the ipsilateral foot.
- From Heel Strike to Flat Foot, the foot (subtalar joint) is pronating (due to internal hip rotation). This unlocks the forefoot and allows it to adapt to uneven ground surfaces.
- From Flat Foot to Heel Off, the foot (subtalar joint) is supinating (due to external hip rotation). This locks the forefoot and allows it to function as a rigid lever at Toe (Push) Off (Zitzlesperger, 1960).
Reference
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.
Prof/Dr Brian A Rothbart
Chronic Pain Elimination Specialist
Discovered the Rothbarts Foot Structure and the PreClinical Clubfoot Deformity
Developer of Rothbart Proprioceptive Therapy
Inventor and Designer of Rothbart Proprioceptive Insoles
Founder of International Academy of Rothbart Proprioceptive Therapy
Author of Forever Free From Chronic Pain