Nearly half of the body weight is of muscle. Movements are performed by means of muscles, leverage is obtained by their attachment to bones. Displaced bones cause muscles and nerves to become stretched or relaxed. Traumatism is a diseased condition of the system due to an injury or a wound. Luxated joints, more especially those of the vertebral column, cause traumatism, a diseased condition.
Poisons affect nerves, cause their relaxation or contraction.
Loss of tension produces atony, enervation, a diminution of muscular power. Innervation is increased by nerve contraction. Contracted nerves by their action on muscles draw vertebrae out of alignment. The importance of bone pressure, nerve impingement, nerve tension, the all important fact that the position of the osseous frame, the neuroskeleton of the human budy, has all to do with the amount of nerve tension, normal or abnormal, known as nerve strain, the amount of heat, is never mentioned, in fact, is never thought of by the teachers of medical or chiropractic schools. It is, therefore, manifest that the would-be teachers of chiropractic know but little of the principles of chiropractic, do not know of it as a science, or of its philosophy.