What is the term for the movement that decreases the angle between the sole of the foot and the back of the leg?

The movement that decreases the angle between the sole of the foot and the back of the leg is referred to as plantar flexion. This action occurs when you point your toes away from your body or stand on your tiptoes, bringing the foot downward relative to the leg. It is primarily executed by the gastrocnemius and soleus muscles located in the calf.

In contrast, dorsiflexion is the opposite movement that involves raising the toes and foot toward the shin, increasing the angle between the foot and the leg. Protraction describes a movement where a body part moves forward, such as the shoulder blades moving away from the spine, and rotation involves moving a structure around its axis, such as turning your head or twisting your torso. These terms indicate different types of movements and are therefore not relevant in this context. Understanding the definitions of these terms is essential when discussing movements related to the musculoskeletal system.