Longitudinal arch is an engineering myth – not possible.
http://www.linkedin.com/groups/Arches-foot-are-not-suitable-3834015.S.5945736744384151557
Preoccupation with height of arch – (navicular drift/drop)
Changes in arch height in different foot types
Arch supports may have worked
Engineering analogy
Tripod model – weight is primarily borne by metatarsal heads 1 & 5 and the calcaneus .
A collapse of the anterior metatarsal arch has been considered as being related to pathology.
Anterior metatarsal arch in which metatarsal heads 2 to 4 are thought to be elevated has been clearly shown not to exist, especially with the use of modern plantar pressure measuring
Related Topics:
Arches | Windlass Mechanism | Overpronation and Muscle Strength | Autosupport Mechanisms in the Foot | Overpronation and Muscle Strength | Foot strengthening exercises | Foot Core
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