ANKLE ROM BY ANTHONY LETT
In this post we will be looking at the foot and ankle region with a focus on range of movement.
Part A: Anatomy First, take five minutes to watch this excellent video about the anatomy and kinesiology of the ankle joint: https://www.youtube.com/watch?v=4hCS1O2LP_c.
Flexion Extension
Pronation Sole faces in
Supination Sole faces out
Although it is not often made clear (for example in the image below) planter and dorsi flexion are the only movements that occur at the ankle or talocrural joint. Inversion and eversion occur at the intertarsal joints, and the talus moves very little. The most important intertarsal joints for inversion and eversion are the subtalar, the talocalcaneonavicular, and the calcaneocuboid.
Anatomy and function The foot and ankle is an exceedingly complex region. Twenty-eight individual muscles, acting across 32 joints or joint complexes, control the movement and posture of the ankle and foot. There are 4 layers of intrinsic muscles that originate and insert within the plantar aspect (underneath) of the foot. There are 3 compartments of extrinsic muscles, all which encase multiple muscles within. Because all extrinsic muscles cross multiple joints, they possess multiple actions.
The plantar fascia is located just superficial to the first layer of muscles.