How is locomotion brought about in humans

Locomotion is the term used to describe the movement of an organism from one place to another. So you could have asked your question by saying "How do humans move?"

Human locomotion is brought about by the movement of their limbs.

Walking is using your legs in a coordinated manner to achieve human locomotion.

Human Locomotion is brought about humans when they walk, bending their elbows, bending their forearms, when they raise their hands. And so forth.