Which plane of movement includes activities like running and walking?

The sagittal plane is the correct answer because it divides the body into left and right halves and encompasses movements that occur forward and backward. Activities such as running and walking primarily involve flexion and extension at the joints, particularly in the legs, which occur in this plane. When you run, for instance, your arms and legs move forward and backward in a coordinated manner, perfectly illustrating movement along the sagittal plane.

In contrast, the frontal plane involves movements that go from side to side, such as lateral raises or side shuffles, and the transverse plane consists of rotational movements, such as twisting the torso. The vertical plane is not a standard term used to describe human movements in anatomical contexts. Thus, understanding the role of the sagittal plane in linear movements provides clarity on why it is the correct choice regarding activities like running and walking.