UNITY OF THE BODY
All tests on Ergos are constructed on the principle of the Unity of the body.
On the job a worker does not lift for the sake of lifting or bend for the sake of bending.
A worker bends in order to do a certain job task, for instance move an object. In order to be able to do this task the worker must not only bend but also and simultaneously rotate the trunk, use the legs, move the arms in different directions and use his hands and fingers.
All Ergos tests are based on the UNITY of the BODY, thus simulating the reality of physical work