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The Neuromuscular Therapist also operates under a system of laws known as Pfluger’s Laws, which illustrate acute to chronic pain patterns and how pain is distributed throughout the body.

1.   The Law of Unilaterality
“If a mild irritation is applied to one or more sensory nerves, the movement will take place usually on one side only and that side which is irritated.”

2.   The Law of Symmetry
“If the stimulation is sufficiently increased the motor reaction is manifested not only to the irritated side but also in similar muscles on the opposite side of the body.” Assuming that I continue without treatment and to ease the pain, drink substantial amounts of alcohol and take a very hot shower, the next day not only would the initial injury site be in pain, but so would the equal and opposite side.

3.   The Law of Intensity
“Reflex movements are usually more intense on the side of irritation and at times the movements of the opposite side equal them in intensity but they are usually less pronounced.” The following day, if I continue to resist proper treatment of my condition, the pain would now have traveled back and intensified at the original injury site with a lesser pain still present on the opposite shoulder.

4.   The Law of Radiation
“If the excitation continues to increase it is propagated upwards and reactions take place through centrifugal nerves coming from the cord segments higher up.” The pain will radiate upward from the site of the original injury toward the brain and then, failing alleviation, will radiate outward, creating a general contraction of all the muscles in the body.   

5.   The Law of Generalization
“If the irritation becomes very intense it is propagated in the medulla oblongata, which becomes
the focus from which the stimuli radiate to all parts of the cord causing a general contraction of all the muscles of the body.”

OTHER LAWS
*Wolffís Law -
Observes that calcium is laid down along lines of stress resulting in bony spurs, joint immobility and calcified ligaments... Muscle hypertrophy occurs in overworked muscles; disuse atrophy occurs in those not worked adequately. Chronic skin changes (dryness, scaling, cracking, thickening, pimples, etc.) occur when trophic substances (carried via vascular channels or by axoplasmic flow) do not provide adequate nutrition.
*Sherrington’s Law - Muscles on one side of a joint will relax upon contraction of the antagonist
muscle or muscles. (Every posterior spinal nerve root supplies a particular area of the skin, with a certain overlap of adjacent dermatomes.)
*Hilton’s Law - The nerve root that supplies a joint, supplies all the muscles that attach to that joint, and the overlying skin. Hilton further states that "every fascia of the body has a muscle attached to it, and that every fascia throughout the body must be considered as a muscle."
*Davis’ Law (Over Stretching) - When muscle ends are brought closer together, the pull of tonus is increased, which shortens the muscle, which may even cause hypertrophy; and if muscle ends are separated beyond normal, tonus is lessened or lost, thus muscle becomes “weak.” Emphasizes that if muscles are lax for extended periods of time, gamma gain and reciprocal
inhibition will take up the slack.
*The Law of Facilitation (Reoccurring Injuries) - When an impulse has passed once through a certain set of neurons to the exclusion of others, it will tend to take the same course on future occasions, and each time it traverses this path the resistance will be smaller; the passage of these neural impulses become even easier for all succeeding impulses.
*Arndt Schultz Law - Weak stimuli activate physiological processes; very strong stimuli inhibit them.
*Hilton's Law - The nerve root supplying a joint supplies the muscles attaching to that joint, as well as the overlying fascia and skin.

Newton’s 3 Laws

First Law (The principle of inertia) -
A body at rest remains at rest and a body in motion remains in motion at a constant velocity as long as outside forces are not involved. Thus he made it no longer necessary to suppose that heavenly bodies moved because angels or spirits constantly impelled them. They moved because nothing existed in outer space to stop them after the initial impulse.
Second Law (Motion defined in terms of mass and acceleration) - This was the first clear distinction between the mass of a body and its weight. Newton showed that mass represented the body's resistance to acceleration; in other words, mass is the amount of inertia a body has. Weight, Newton showed, represents the amount of gravitational force between a body and another body (usually the earth).
Third Law (Action and reaction) - This famous law states that for every action there is an opposite and equal reaction. That law makes news today, since it governs the behavior of rockets. Newton considered the behavior of moving bodies both in vacuum and in media that offered resistance. In connection with the latter situation, he foreshadowed modern aeronautics.

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