Low Back Injury Risk Assessment Tools - Fundamentals and Assessment Tools for Occupational Ergonomics - page 691

FIGURE 35.3 Three phases of modeling: (a) video capture, (b) stick figure representation for the 3DSSPP and
NIOSH models, and (c) laboratory LMM simulations. (Sawing at ground level.)
spent in these postures that these activities move into the priority rankings. This illustrates that the time-
weighted probabilistic representation of the biomechanical stresses gives an important insight into some
of the activities performed by these workers that would have gone unnoticed with more traditional task
analysis procedures.
35.7 Additional Low Back Risk Assessment Tool Needs
The main focus of these previous assessment tools has been on quantifying risk in traditional MMH
tasks, that is, moving materials from one location to another. Another occupational activity that is