Biomechanics of Ankle Flashcards
Sections of Hindfoot
Calcaneus, Talus
Section of the Midfoot
Navicular, cuboid and three cuneiforms
Forefoot
Metatarsals and phalanges
Pronation
Dorsiflexion, abduction, Eversion
Supination
Plantar flexion, adduction, inversion
Stability Ankle of Joint relies
Shape of the tibia, fibula and talus
Ligaments
Legs muscles
Effective propioception
Talocrural Joint Stability (most stable)
Dorsiflexion
wider anterior part of talus is positioned b/w sital tibia and fibula
talus securely tibiofibular ligaments and interosseous membrane.
Talocrural Less Stable Plantarflexed
In plantarflexion, narrower position posterior part of the trochlea is position b/w tibia and fiubla. talis is loose on mortise
Active Insufficiency
when multi joint muscle reaches a length can longer apply effective force
Passive Insufficency
Mulitjoint muscle cant lengthen to a drgree tor reach full range of motion