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Ergonomics evaluation of user-hand tool interaction.

Heer Vyas1,2, Anjali Nag2, Pranab Nag2

  • 1NIFT Campus, Ministry of Textiles, Government of India, Dharamsala, Mangatuparamaba, Kannur, India.

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Redesigning hand tools to improve worker comfort and safety is crucial. Addressing issues like tool weight, handle design, and sharp edges can significantly reduce musculoskeletal discomfort and anxiety.

Keywords:
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Area of Science:

  • Ergonomics
  • Human-Computer Interaction
  • Occupational Health

Background:

  • Evaluating user hand tool interaction is vital for identifying areas needing redesign.
  • Understanding user perception of hand tool features informs ergonomic improvements.

Purpose of the Study:

  • To examine user perceptions of hand tool features.
  • To identify features influencing human-system interaction for reduced risk and enhanced comfort.

Main Methods:

  • Workers from six occupational groups were surveyed.
  • Ergonomic checkpoints and general health questionnaires were administered.
  • Assessed musculoskeletal discomfort, stress symptoms, and general health complaints.

Main Results:

  • Tool weight, handle design, and sharp edges were identified as risk factors.
  • These factors are associated with upper extremity pain, anxiety, and injury.
  • Handle redesign and protection against sharp edges are key for improving comfort.

Conclusions:

  • Provides an approach to examine tool characteristics for redesign.
  • Aims to increase user comfort and safety in hand tool usage.