What stops abnormal subtalar joint pronation

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What stops abnormal subtalar joint pronation:
If the subtalar joint is pronating excessively, something must be stopping it. The purpose of this observation is to determine which structure it is – this may have implications for the type of pathology that develops in a foot that pronates excessively.

Structures can stop excessive subtalar joint pronation are:
• bone – the subtalar joint reached its end range of motion (maximum pronation test) – sinus tarsi syndrome is more common
• muscle – the posterior tibial muscle contracts (observed as a prominent tendon around the medial malleolus region) – posterior tibial tendon pathology is more common
• fascia – the plantar fascia become tight (felt in the under the arch area as a tight band) – plantar fasciitis and functional hallux limitus is more common

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