Monday, February 11, 2013
DaVinci, Biotensegrity, and Shifting Paradigms in Cerebral Palsy
I have used the adjacent DaVinci sketch before, simply because it is both elegant and simplistic at the same time. It serves the relevant anatomical understanding, and also builds a link to the more "generic" diagrams I will insert later in the post.
There are essentially two (2) elements that embody how the human organism is engineered: Compression and Tension (Biotensegrity).
Compression: Those elements that are engineered to either absorb compressive forces or to distribute compressive forces.
Tension: Those elements that exact longitudinal forces within the organism.
To this point, the message is relatively clear and is likely to already be well understood and integrated. It isn't until we introduce the "third dimension" of explanation that the broader understanding takes root.
The generic images (even "en vivo" images) only depict a 2-dimensional reality. Therefore, the third dimension is necessary in order to accurately assess and extrapolate. The third dimension can be considered as:
Radial Symmetry: Radial symmetry is used to define the circumferencial quality of the structure. This added dimension is important because it ultimately defines the overall competence of the tensional and compressional components...therefore having a direct influence on the resulting movement and control.
The image below is a cross sectional view of the neck at approximately C5-C6 (mid lower neck). The cross-sectional views are always the most challenging due to the simple fact that they are casually dismissed...however they represent the precise third dimension that is necessary for a fully understanding of complexities.
Therefore, if we extrapolate this understanding to larger "landscapes" (chest, abdomen, and pelvis), the relevance of volumetric characteristics becomes even more prominent. The CP individual manifests this under-appreciated dimension to the extreme...they typically manifest significantly deficient volume in the chest, abdomen, and pelvis. This directly alters the tension / compression equilibrium and ultimately (given that development of the trunk DRIVES the development of the periphery) cascades to the limbs.
Im summary, an intrinsic understanding of the biotensegral relationship (compression and tension) as well as the added third dimension will ultimately provide for a more informative perspective. It only requires the conceptual intergation in order to effectively extrapolate into the physical reality.