Here is more than 5 reasons:
Applied Kinesilogy a Fraud
Here are some findings that point to Applied Kinesiology being fraudulent:
- Three practitioners testing eleven subjects made significantly different assessments; their diagnoses of nutritional deficiencies did
not correspond to the nutrient levels obtain by blood serum analysis;
and that the responses to nutrient substances did not significantly
differ from responses to placebos .
- Another study found no effect from administering the nutrients "expected" to strengthen a muscle diagnosed as "weak" by AK
- Researchers who conducted an elaborate double-blind trial concluded that "muscle response appeared to be a random phenomenon ."
- Another study showed that suggestion can influence the outcome of muscle-testing. During part of this experiment, college students were
told that chewing M&M candies would give them instant energy that
would probably make them test stronger. Five out of nine did so .
- Four AK practitioners tested seven patients were extremely sensitive to wasp venom. Altogether, 140 muscle tests were done to see
how the patients responded to preparations of venom or salt water in a
bottle. If the test were valid, the venom bottles should result in
"strong" reactions and the salt-water bottles should produce "weak"
test reactions. However, the practitioners were unable to identify
which bottles contained which .
- Several chiropractors were tested at a medical office while under unblinded and blinded conditions. During the volunteers could resist
downward pressure when a drop of glucose was placed on their tongue
but could resist when fructose was administered. The the arm tests
were repeated using substances in coded test tubes so that the
volunteer, the chiropractors, and the onlookers could not tell which
solution being applied to the volunteer's tongue. When the code was
revealed, There was no connection between ability to resist and
whether the volunteer was given the "good" or the "bad" sugar .
 Kenny JJ, Clemens R, Forsythe KD. Applied kinesiology unreliable for assessing nutrient status. Journal of the American Dietetic Association 88:698-704, 1988.
 Triano JJ. Muscle strength testing as a diagnostic screen for supplemental nutrition therapy: a blind study. Journal of Manipulative and Physiological Therapeutics 5:179-182, 1982
 Haas M and others. Muscle testing response to provocative vertebral challenge and spinal manipulation: a randomized controlled trial of construct validity. Journal of Manipulative and Physiological Therapeutics 17:141-148, 1994.
 Applied kinesiology - Double-blind pilot study. Journal of Prosthetic Dentistry 45:321-323, 1981.
 Ludtke R and others. Test-retest-reliability and validity of the kinesiology muscle test. Complementary Therapy in Medicine 9:141-145, 2001.
 Hyman R. The mischief-making of ideomotor action. by ideomotor action. The Scientific Review of Alternative Medicine, Fall-Winter issue, 1999. Republished on Quackwatch, Aug 26, 2003.