Applied Kinesiology (AK) is a system that evaluates structural, chemical and mental aspects of health using manual muscle testing combined with other standard methods of diagnosis. AK is a non-invasive system of evaluating body function that is unique in the healing arts which has become a dynamic movement in health care in its relatively short existence.

The combined terms “applied” and “kinesiology” describe the basis of this system, which is the use of manual muscle testing to evaluate body function through the dynamics of the musculoskeletal system. Treatments may involve specific joint manipulation or mobilization, various myofascial therapies, cranial techniques, meridian and acupuncture skills, clinical nutrition, dietary management, counseling skills, evaluating environmental irritants and various reflex procedures.

The triad of health lists the three basic causes of health problems.  They are structural, chemical, and mental, with structure as the base of the triad. Literally, all health problems, whether functional or pathological, are involved with one part or all parts of the triad. This is not new to chiropractic, as its founder, D.D. Palmer states in his text, The Science, Art, and Philosophy of Chiropractic, “The determining causes of disease are traumatism, poison and autosuggestion.” AK enables the doctor to evaluate the triad’s functional balance and direct therapy toward the imbalanced side or sides.
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The physician who is aware of the triad of health, and evaluates every patient for all three sides, increases his ability to find the basic underlying cause of a patient's health problem. AK skills are developed and approved by the International College of Applied Kinesiology Board of Standards.
These skills are refined from many disciplines including Chiropractic, Osteopathy, Medicine, Dentistry, Acupuncture, Biochemistry, Psychology, Homeopathy, and Naturopathy etc.  Members of these professions share knowledge through the publications and conferences of the International College of Applied Kinesiology (ICAK) and its chapters.