This is the first in a series of articles that will address cross-examining defense biomechanical experts and the field of biomechanics generally.

By way of background, biomechanics is the science of movement of a living body, including how muscles, bones, tendons and ligaments work together to produce movement. Biomechanics is sometimes confused with kinetics. Kinetics is a branch of classical mechanics that is focused on the movements of various bodies and the forces that can act on both bodies in motion and bodies at rest. Biomechanics and kinetics are not the same thing; rather, biomechanics is actually a subcategory of kinetics.