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Quantifying the biomechanical effects of back-support exoskeletons on work movements using statistical parametric
Julia Riemer1, Sascha Wischniewski2, Thomas Jaitner1
1Institute for Sport and Sport Science, TU Dortmund University, 44227 Dortmund, Germany.
Back-support exoskeletons (BSEs) alter muscle activity and movement patterns during industrial tasks. These biomechanical changes may indicate strain, potentially limiting their workplace use and informing future designs.
Area of Science:
- Biomechanics
- Ergonomics
- Occupational Health
Background:
- Back-support exoskeletons (BSEs) are developed for physically demanding industrial settings.
- The impact of BSEs on body mechanics and musculoskeletal disorder (MSD) prevention requires further investigation.
Purpose of the Study:
- To analyze biomechanical motion sequences during various work movements.
- To comprehensively assess the influence of BSEs on muscle activity and kinematics.
Main Methods:
- Utilized statistical parametric mapping (SPM) methodology.
- Quantified the effects of BSEs on muscle activity (MA) and kinematic movement patterns.
- Standardized assessment across lifting, carrying, walking, and static bending tasks.
Main Results:
- Decreased MA in the musculus (M.) biceps femoris and reduced hip flexion during lifting.
- Reduced MA in M. biceps femoris during carrying and walking, with increased knee and ankle flexion.
- Observed kinematic changes may indicate strain in other body regions due to BSE pressure.
Conclusions:
- The biomechanical effects of BSEs may lead to non-use in the workplace.
- Findings should inform the development of improved BSE designs.
- Consideration of unintended strain is crucial for future exoskeleton development.
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