dorsiflexie

Dorsiflexie refers to the movement of the ankle joint where the top of the foot moves upward towards the shin. This motion decreases the angle between the dorsal (top) surface of the foot and the anterior (front) side of the lower leg. It is the opposite of plantarflexion, which is the movement of pointing the toes downwards.

Several muscles are responsible for performing dorsiflexion, primarily the tibialis anterior. Other muscles contributing to this action include the extensor digitorum longus, extensor hallucis longus, and peroneus tertius. These muscles are innervated by the deep peroneal nerve.

Dorsiflexie is essential for many daily activities, such as walking, running, and lifting the foot to clear obstacles. It allows the toes to be lifted off the ground during the swing phase of gait, preventing tripping. Limitations in dorsiflexion can affect gait mechanics and may contribute to injuries.

Assessment of dorsiflexion range of motion is a common part of physical examinations, particularly in the context of musculoskeletal assessments and sports medicine. The normal range of motion for dorsiflexion is typically around 20 degrees. Conditions that can limit dorsiflexion include tight calf muscles, neurological impairments, or joint restrictions.