Compression is one of the many forces acting on the body (and all biological materials), compression is basically the act of pressing together. Of particular note in lifting activities is the compression of the intervertebral discs of the spine and especially the asymmetrical pressure applied when the trunk is angled, such as during forward bending, where the pressure on the anterior (front) part of the disc is significantly increased. However, the human spine has a remarkable ability to manage compressive forces in general and all lifting activities generate these forces to some degree. Compression of a structure shortens and widens the structure, which is known as deformation, which changes its dimensions. This change is called strain.
This page created 10 Sep 2011 19:39
Last updated 02 Mar 2016 20:25