Plantar flexion
Plantar Flexion
Plantar flexion (/ˈplæntər ˈflɛkʃən/) is a movement in which the top of your foot points away from your leg. You use plantar flexion whenever you stand on the tip of your toes or point your toes.
Etymology
The term "plantar flexion" is derived from the Latin planta, meaning "sole of the foot", and flexio, meaning "a bending".
Anatomy Involved
Plantar flexion involves the Achilles tendon, gastrocnemius muscle, soleus muscle, and the plantar fascia. The primary muscles involved are the gastrocnemius and soleus muscles, which are located in the calf. These muscles contract to pull the heel up, allowing the foot to point downwards. The Achilles tendon, the strongest and largest tendon in the body, connects these muscles to the heel.
Related Terms
- Dorsiflexion: The opposite movement of plantar flexion, where the toes are brought closer to the shin, decreasing the angle between the dorsum (top part) of the foot and the leg.
- Ankle: The joint where plantar flexion occurs.
- Flexion: A position that is made possible by the joint angle decreasing.
- Extension: The opposite of flexion, a straightening movement that increases the angle between body parts.
Clinical Relevance
Plantar flexion is a common movement in many activities and is essential for activities such as walking, running, and jumping. Injuries or conditions that limit or impair the ability to perform plantar flexion can significantly impact mobility. Conditions such as Plantar Fasciitis, Achilles Tendonitis, and Calf Strain can cause pain during plantar flexion.
External links
- Medical encyclopedia article on Plantar flexion
- Wikipedia's article - Plantar flexion
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