Factors affecting posture for machine sewing tasks: the need for changes in sewing machine design
Related Experiment Video
Updated: Aug 12, 2026

Application of Design Aspects in Uniaxial Loading Machine Development
Published on: September 19, 2018
G Li1, C M Haslegrave, E N Corlett
1Department of Manufacturing Engineering and Operations Management, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
Abstract:
Sewing machinists suffer from musculoskeletal problems, which have been attributed to poor working postures as well as to the repetitive hand and arm movements. Their posture is constrained by both the visual and the manual aspects of the task, and the design of the sewing machine and table have a considerable influence on the posture adopted. The potential for improvement of industrial sewing machines was investigated in a study of the effects of two design parameters (table inclination and view of the needle). It was shown that both trunk posture and head/neck flexion could be improved significantly by altering these design parameters. Trunk posture was found to be strongly related to the manual aspects of the task, and could be improved by altering the working positions for the arm. Head posture was most influenced by the view of the task/needle and could be improved by improving the visual condition for the task.
Related Concept Videos
Machines
A free-body diagram of the...
Machines: Problem Solving I
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...
Machines: Problem Solving II
Upward Impending Motion
To better comprehend how a screw jack functions, consider the completely unraveled thread as a block in contact with the...
Self-Locking Screw
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
Transmission Shafts: Problem Solving
Next, use bending moment diagrams for the shaft to...

