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Factors affecting posture for machine sewing tasks: the need for changes in sewing machine design
G Li1, C M Haslegrave, E N Corlett
1Department of Manufacturing Engineering and Operations Management, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
Applied Ergonomics
|February 1, 1995
Summary
Sewing machinists
Area of Science:
- Ergonomics
- Occupational Health
- Industrial Design
Background:
- Sewing machinists frequently experience musculoskeletal issues.
- Poor working postures and repetitive arm movements contribute to these problems.
- Workstation design significantly impacts adopted postures.
Purpose of the Study:
- To investigate the potential for improving industrial sewing machine design.
- To assess the impact of table inclination and view of the needle on machinist posture.
Main Methods:
- A study was conducted to evaluate the effects of altering two key design parameters: table inclination and the view of the needle.
- Measurements of trunk posture and head/neck flexion were taken.
Main Results:
- Significant improvements in trunk posture and head/neck flexion were observed after altering design parameters.
- Trunk posture improvements correlated with adjustments to arm working positions.
- Head posture enhancements were linked to improved visual conditions of the task/needle.
Conclusions:
- Industrial sewing machine design modifications can significantly reduce musculoskeletal strain.
- Optimizing table inclination and visual access to the needle are key factors in improving worker ergonomics.