The muscles of the body produce movement. The term musculoskeletal system is often used to refer to the body's bones, joints, and muscles. Good body mechanics use the musculoskeletal system efficiently. Common terms used when speaking of body mechanics are defined in the table shown below. It causes water to drain to its lowest level.
Energy is required to overcome the force of gravity.
The center of gravity for a standing person is the center of the pelvis and about halfway between the umbilicus and the pubic bone. The line of gravity in a standing person is the straight line from the head to the feet that passes through the center of gravity of the body. Maintaining Good Posture Posture refers to the position of the body or the way in which it is held. Posture requires energy to overcome gravity. Without this energy, the body would become entirely limp and fall to the floor.