Ergo/IBV does not calculate the overall risk level because the risks associated with the various types of tasks are located in different body areas; therefore, it would not make much sense to gather such risks.

In fact, the modules on Manual Materials Handling calculate the risk of musculoskeletal disorders to the thoracolumbar area of the back, whereas the specific modules to evaluate repetitive movements (Repetitive Tasks and EN 1005-5 [OCRA]) estimate the risk to the upper limbs.