Terminology

Language / Nomenclature

Within 3DMT symbols have been developed, which indicate in a simple way how the vertebral column as a whole, or a part thereof, moves or stands in space.
Through observations, one has come to the conclusion that there are four different combinations are in the 3 dimensions.

Flexion

vs

extension

-->

sagittal plane

left rotation

vs

right rotation

-->

vertical axis

left lateral flexion

vs

right lateral flexion

-->

frontal plane

Combinations

flexion

left rotation

right lateral flexion

A

flexion

right rotation

left lateral flexion

C

extension

left rotation

left lateral flexion

D

extension

right rotation

right lateral flexion

B

Is it remarkable that in extension, lateral flexion and rotation are always aligned. In flexion however, they are in opposite directions. So, if there is a movement or posture and two dimensions are known, then the 3rd will be known. For example, if there is a lateral flexion to the left combined with a left rotation, then it is known that this part of the vertebral column is in an extension (typology D). In a flexion which is combined with a rotation to the right, there is a lateral flexion to the left (typology C).

In order to facilitate communication, there are given the letters A, B, C, and D. A and C are the combinations of flexion-oriented and B and D are the extension targeted combinations

In the graphic representations of the typologies displays only the rotational component and the lateral flexion. The block adjacent to the spinal column represents the rotation component; on the right side means a right-rotation, a left-rotation on the left-hand side. With these two parameters, it is clear, therefore, whether there is a flexion or of an extension as the 3rd dimension.

Alex Tiemes
Phone: +31 6 42241663
E-mail: aijinmo3dmt@gmail.com
Address: Breemarsweg 219
7553 HJ Hengelo, the Netherlands