An ergonomic assessment tool for evaluating the effect of back exoskeletons on injury risk

Details

• Alternative Title:
  Appl Ergon
• Personal Author:
  Zelik, Karl E. ; Nurse, Cameron A. ; Schall, Mark C. ; Sesek, Richard F. ; Marino, Matthew C. ; Gallagher, Sean
• Description:
  Low back disorders (LBDs) are a leading injury in the workplace. Back exoskeletons (exos) are wearable assist devices that complement traditional ergonomic controls and reduce LBD risks by alleviating musculoskeletal overexertion. However, there are currently no ergonomic assessment tools to evaluate risk for workers wearing back exos. Exo-LiFFT, an extension of the Lifting Fatigue Failure Tool, is introduced as a means to unify the etiology of LBDs with the biomechanical function of exos. We present multiple examples demonstrating how Exo-LiFFT can assess or predict the effect of exos on LBD risk without costly, time-consuming electromyography studies. For instance, using simulated and real-world material handling data we show an exo providing a 30 Nm lumbar moment is projected to reduce cumulative back damage by ∼70% and LBD risk by ∼20%. Exo-LiFFT provides a practical, efficient ergonomic assessment tool to assist safety professionals exploring back exos as part of a comprehensive occupational health program.
• Subjects:
  Biomechanical Phenomena Electromyography Ergonomics Exoskeleton Device Humans Lifting Occupational Diseases
• Source:
  Appl Ergon. 99:103619
• Pubmed ID:
  34740072
• Pubmed Central ID:
  PMC9827614
• Document Type:
  Journal Article
• Funding:
  R01 EB028105/EB/NIBIB NIH HHSUnited States/ ; T42 OH008436/OH/NIOSH CDC HHSUnited States/ ; T42OH008436/ACL/ACL HHSUnited States/
• Volume:
  99
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:dd901cfbb7f946fa103d39a852c2dd95afa5a51e2e078f7c195a87911fc92d78
• Download URL:
  https://stacks.cdc.gov/view/cdc/123517/cdc_123517_DS1.pdf
• File Type:
  [PDF - 606.93 KB ]