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Updated: May 8, 2026

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

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Novel ergonomic postural assessment method (NERPA) using product-process computer aided engineering for ergonomic

Alberto Sanchez-Lite1, Manuel Garcia, Rosario Domingo

  • 1Departamento de Ciencias de los Materiales e Ingeniería Metalúrgica, Universidad de Valladolid, Valladolid, Spain.

Plos One
|August 27, 2013
PubMed
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A new postural assessment method (NERPA) aids product design by identifying ergonomic risks. This method, using digital human models, proved effective in improving manual assembly operations.

Area of Science:

  • Ergonomics
  • Occupational Health
  • Industrial Design

Background:

  • Musculoskeletal disorders (MSDs) are a significant concern in the industrial sector, often stemming from poor ergonomic design.
  • Proactive assessment methods during the design phase are crucial for detecting and mitigating ergonomic risks.
  • Effective assessment methods can enhance process design and identify ergonomic improvements throughout the product lifecycle.

Purpose of the Study:

  • To introduce a novel postural assessment method (NERPA) suitable for product-process design.
  • To leverage digital human models and 3D CAD tools for ergonomic risk assessment.
  • To improve workstation design and gain a competitive advantage in assembly processes.

Main Methods:

  • Development of the novel ergonomic postural assessment (NERPA) method.

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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
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Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Published on: December 11, 2013

  • Utilization of digital human modeling integrated with 3D CAD software.
  • Application in virtual environment simulations for assembly sequence analysis.

    • Main Results:

    • The NERPA method was applied to the design of six production lines.
    • A total of 240 manual assembly operations were analyzed, with 21 identified for improvement.
    • Statistically significant differences were observed between NERPA and the Rapid Upper Limb Assessment (RULA) method.

    Conclusions:

    • The developed NERPA method demonstrated its utility in practical industrial applications.
    • The study confirmed the effectiveness of NERPA in identifying and improving ergonomic issues in manual assembly.
    • NERPA offers a valuable alternative to existing methods like RULA for ergonomic assessment in product design.