Week 4 Task Sheet - The foot and ankle Flashcards
How does the Achilles Tendon form?
Gastroc and Soleus combine to form triceps surae
Form the tendocalcaneous - winds 90 degrees to insert onto the calcaneous
What makes up the medial longitudinal arch?
Calcaneous Talus Navicular Cuneforms Medial 3 metatarsals
What makes up the lateral longitudinal arch?
Calcaneous
Cuboid
4th & 5th metatarsals
What makes up the transverse arch?
Metatarsals
Cuboid
Cuneforms
What is the role of the arches of the foot? (5)
- Protection of blood vessels and lymph from the pressure of bones when standing
- Support body weight
- Absorb forces when walking and running
- Adapt to uneven surfaces
- Provide spring and lift
What is the plantar fascia? What is its function?
Thickening of the fascia on the base of the foot
- Stabilises the longitudinal and transverse arches
- Prevents the calcaneous from everting during walking
- Provides traction during walking
What is the windlass mechanism?
Plantar fascia acts as a cable between calcaneous and metatarsophalengal joints
- During propulsive gait, plantar fascia winds around the head of the metatarsals - shortens the distance between the metatarsal heads and the calcaneous –> elevates medial archs and prevents the foot from collapsing
What are the risk factors for plantar fasciitis? (9)
- Excessive foot pronation
- High arches
- Weak plantar flexor muscles (intrinsic muscles of the foot)
- Running – forces the plantar fascia to stretch and contract – can result In microtears
- Prorogued standing or walking – put excessive strain on the plantar fascia
- Sedentary life style – can cause shortening and stiffness of the plantar fascia
- Tight Achilles tendon – reduces dorsiflexion – reduces stretch on plantar fascia
- Obesity
- Increased age – reduced flexibility
What is a grade I muscle tear?
DOMS - limited number of fibres torn with no decrease in strength or aROM or pROM
What is a grade II muscle tear?
Nearly 1/2 of fibres torn - acute and significant pain with swelling and a minor decrease in muscle strength
What is a grade III muscle tear?
Complete rupture of the muscle - tendon is separated from muscle belly or muscle belly into two parts - severe pain and swelling, complete loss of function