Monday, March 23, 2009

Getting Deep! Spinal Elements!

People spend a lot of money to get the "candy" for their ride. Spend $$$ for carbon fiber, but on the same note are slow to get their body on the bike correctly?

Your body and how it is made is not basic.

Knowing where the forces go is very important!
You don't want to experiment with these parts! You might find it cost a lot more to replace or worst!

"No amount of experimentation can ever prove me right; a single experiment can prove me wrong." -AE

Biomechanics of the spinal elements are important to understand when you set up a bike.

Anatomical models for improving segmentation is helpful. A simultaneous segmentation of the ensemble that uses not only prior knowledge of individual shapes but also additional information about spatial relations between the objects is often beneficial.

The global spine shape is expressed as a consecution of local "Vertebra Coordinate Systems" or (VCS).

Each week, we will provide you with some important insight. This will provide you with more wisdom or capacity and deep intuitive understanding. It might save your back and even improve your game?

The loads on the spine can be described as either linear (force) or as rotational (movement) or as a combination of both. The 3 primary components of a force are compression, tension and shear. With respect to the vertebral coordinate system there are 3 independent movements.

Moments (M) or torque are couples of equal & opposite force (F) that act at a distance (D), defined simply as F x D = M. With respect to the VCS 3 are independent moments. A positive moment about X, for example, produces flexion. On the other side of the coin, is the displacement of the spine and it is also very complex, 3-dimensional, and varies with the level & posture of the spine in space!

In a linear form, linear motion is a translation of the vertebral body and there independent directions of translation each along an axis of the VCS. Rotation motions can occur about each axis of the VCS and in combinations.

Within the dense cortical shell of the vertebral body is the cancellous bone of the trabecular system. The trabecular system can be considered as a structural frame supporting the outer cortical shell of the vertebral body.

Currently, most approaches on the bike are focused on the modeling of the outer surfaces of the body? Tools like Dartfish can be very helpful especially after you get a deep understanding of the structural frame.

If you don't get it right! Ouch!

No comments: