At the Warehousing Workstation of Iran Tire Company

Repetitive manual material handling (MMH) activities often contribute to the development of musculoskeletal disorders in occupational settings. This study investigates the ergonomic and biomechanical risks associated with tire lifting and loading tasks performed by warehouse workers at Iran Tire Company. To identify the most critical posture, a simplified video-based motion analysis was conducted, followed by simulations using multiple biomechanical modeling platforms. The highest-risk posture produced L4-L5 compression forces of about $4800-5000 ~\mathrm{N}$ for the 14 kg tire and $3000-3200 ~\mathrm{N}$ for the 7 kg tire, exceeding the 3400 N safety threshold in most cases. This posture was then evaluated using both biomechanical and ergonomic assessment tools. Based on the results, two interventions were introduced: (1) an engineering control involving a height-adjustable pallet jack to minimize trunk flexion, and (2) an administrative strategy to reduce task frequency, which reduced compression forces to about 2500 2700 N for the 14 kg tire and $1500-1600 ~\mathrm{N}$ for the 7 kg tire. Postintervention evaluations revealed a substantial reduction in lumbar spine loading and ergonomic risk scores, highlighting the effectiveness of low-cost ergonomic solutions in enhancing worker safety and reducing the risk of MSDs in manufacturing environments.

• Publication year

  2025

• Venue

  Iranian Conference on Biomedical Engineering

• Publication date

  2025-11-19

• Fields of study

  Not labeled

• Identifiers
  DOI 10.1109/ICBME68496.2025.11392427
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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