New approach to ergonomic assessment: ISO/TR 12295:2014

El tiempo estimado de lectura es de 2 minutos

The ISO/TR 12295:2014 provides a new method for the evaluation of ergonomic risks associated with:

  • Manual lifting
  • Pushing and pulling loads
  • Repetitive movements
  • Awkward postures

In particular, it guides the user and provides additional information on the selection and use of appropriate standards, by means of two levels of employment for experts and non-experts.

By means of a request from WHO to the International Ergonomics Association, this standard develops tools that in a simple way intended to reduce the problem of musculoskeletal disorders related to work (hereafter MSD).

Historically, risk factors for manual lifting, pushing and pulling loads and repetitive movements have been covered in a single concept, overexertion, neglecting other aspects.

The assessment of ergonomic risk factors is performed by using different screening tools with little scientific rigour, or by means of the probability-severity matrix, which provides a subjective result supporting the criterion obtained by the safety or ergonomic technician.

The measurement of effort by means of heart rate has more scientific basis than the above methods, but this approach is not enough either since sometimes with exertion there is an increased physical effort that does not necessarily include an increase in heart rate.

Therefore, it was necessary to have a system that would allow us to determine the biomechanical response of the body during work activities, taking into account how the work is organized, what is required by each task and it’s time to be carried out.

ISO TR 12295:2014 aims to analyse working conditions independently at each work post. It involves analysing each of the ergonomic risk factors, taking into account the organization of the work, how long its performed and the presence or absence of recovery periods or rotations, and if there are rotations, what other tasks are performed.

The standard is a guide, divided into three parts, which will assist in the implementation of previous standards. It proposes three differentiated stages of implementation in order to help the user decide on the standards to use when evaluating a job post:

  • Hazard identification method using a pass key
  • Rapid assessment
  • Specific or analytical evaluation, with specific criteria for evaluating multitasking tasks or varied tasks.

The final conclusion on ISO TR 12295:2014 is that its application enjoys sufficient scientific agreement in providing the necessary rigour to ergonomic evaluation. This is achieved, in turn, due to the use of simple and usable tools.

And since learning to walk is done by walking, the best thing to do is see how to apply ISO TR 12295:2014, but this will be handled in a future post.



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