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[Study on the method of estimating upper limb reachable workspace based on shoulder joint dynamic positioning]
1Research Center for Sport Ability Assessment and Enhancement, Northeast Normal University, Changchun 130024, China.
Summary
A new method accurately estimates the shoulder joint center of rotation for upper limb reachable envelope analysis. This aids ergonomic design and may reduce work-related musculoskeletal disorders.
Area of Science:
- Biomechanics
- Human Movement Analysis
Context:
- Ergonomic design and task optimization require accurate upper limb motion analysis.
- Estimating the shoulder joint center of rotation is crucial for understanding reachable workspace.
Purpose:
- To propose a functional method for locating the shoulder joint center of rotation.
- To enable rapid estimation of the upper limb reachable domain envelope.
Summary:
- A dynamic shoulder joint center of rotation was estimated using 3D motion capture during gait.
- This dynamic center showed significantly higher localization accuracy compared to static methods.
- The dynamic center's trajectory correlated strongly with upper limb joint angles.
Impact:
- Enables rapid and accurate estimation of the upper limb reachable domain envelope.
- Supports improved ergonomic design and task optimization.
- May help reduce the risk of work-related musculoskeletal disorders.
