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[Stress-strain approach--a principle for ergonomic studies].

W Laurig1

  • 1Institut für Arbeitsphysiologie, Universität Dortmund.

Zeitschrift Fur Die Gesamte Hygiene Und Ihre Grenzgebiete
|June 1, 1990
PubMed
Summary

This study introduces the load-strain approach in occupational medicine and ergonomics, differentiating between work "load" and "strain." It provides a framework for assessing working conditions and making practical judgments.

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Area of Science:

  • Occupational Medicine
  • Ergonomics
  • Occupational Hygiene

Background:

  • The terms "load" and "strain" lack clear distinction in occupational hygiene and WAO terminology.
  • Occupational medicine and ergonomics have developed the "load-strain approach" since the 1970s.

Purpose of the Study:

  • To outline the historical development and explain the "load-strain approach."
  • To demonstrate the approach's significance for planning and executing ergonomic investigations.
  • To recommend differentiating between the description, assessment, and judgment of working conditions.

Main Methods:

  • Historical review of "load" and "strain" terminology.
  • Derivation and presentation of the "load-strain approach" in simple and extended forms.
  • Discussion of criteria and models for operationalizing strain and making pragmatic judgments.

Main Results:

  • The "load-strain approach" offers a structured method for analyzing work conditions.
  • Differentiation between description, assessment, and judgment is crucial for ergonomic investigations.
  • Models for operationalizing strain and balancing scientific proof with practical decisions are presented.

Conclusions:

  • The "load-strain approach" is significant for ergonomic investigations and assessing working conditions.
  • A pragmatic judgment concept is proposed to reconcile scientific rigor with practical applicability.
  • Clear differentiation of load and strain enhances occupational health assessments.

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