Ankle motion refers to the range and quality of movement at the ankle joint, primarily involving dorsiflexion and plantarflexion, with contributions from inversion and eversion. It is crucial for normal gait, balance, and weight-bearing activities, making its assessment vital in diagnosing injuries, neuromuscular disorders, or degenerative conditions. Limited ankle motion, such as reduced dorsiflexion, is commonly associated with altered biomechanics that can lead to ankle sprains or contribute to chronic conditions like Achilles tendinopathy.