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. Having good posture means positioning the body so that there is good body alignment and good balance. In this position, the musculoskeletal system can be used in the best way possible. In addition, good posture makes it possible for other systems of the body to work snore efficiently. For example, slouching when standing of sitting makes it difficult for the lungs to work at their best.