Module Analyzing ATD Ange Axial TriRadius ATD Angle

Module Analyzing ATD Ange

Axial Tri-Radius & ATD Angle This is the most widely used method in Dermatoglyphics. The axial tri-radius is usually present in the proximal part of the palm in alignment to the fourth meta-carpel bone. The atd angle is formed by the lines drawn from the digital tri-radius ”a” to the axial tri-radius “t” and from this tri-radius to the digital tri-radius d. The more distal the position of t, the larger is the atd angle. Some palms especially those with the pattern on hypothenar region, may have more than one axial tri-radius. They are depicted as t’ , t” t’” etc. The axial triradius seperates the hypothenar area from thenar area. The atd angle is an indicator of the degree of distal displacement of axial tri-radius. The angle increases as the radius is more distally located. The atd angle is even more sensitive to environmental factors than a-b ridge count. Wider atd angles have been reported in cases of Down Syndrome. Greater atd angle have been reported in cases of Dyslexia. Increase in atd angle has been associated with arrested growth or an environmental insult during the gestation period. ATD angle reflects degree & speed of co-ordination between the nervous muscular system, reflecting one’s efficiency.

ATD Angle findings History Since early 70's Soviet Union had been applying Dermatoglyphics and ATD angle in selecting athletes. Dermatoglyphics and ATD angle have been secret weapon & tool in selecting contestants for Olympics In the countries like China, Australia, Japan, Malaysia &Taiwan etc. , Dermatoglyphics analysis & ATD measurement is must before selecting any student in any sports team. If the findings of the Dermatoglyphics & ATD angle are not favourable then the student is not taken in the sports team but if the findings are supporting then the coach and other authorities of the sports team focus and concentrate on the training on such students. Lower the ATD, more the athlete material you are. < 35 degree: Born Athlete i. e. For Sports, 35 -40 Degree – Smart People, 41 -45 Degree – Normal Range, 46 -50 Degree – Step by step learner, >50 Degree – Mentally Retarded. This is one of the key reasons that China has won the maximum no. of Gold medals in Olympics since beginning.

How to calculate ATD Angle ? The atd angle is a dermatoglyphic trait formed by drawing lines between the triradii below the first and last digits and the most proximal triradius on the hypothenar region of the palm.

Step 1 – Identify – A – T – D as marked in Green Circle’s Step 2 – Mark Lines on – A – T - D Step 3 – Place D to find – ATD Angle

Thank You and All the Best !