Describe how moving parts and tools into the primary reach zone reduces upper-limb and whole-body ergonomic load.
The same repair bench, redesigned so the worker no longer reaches and twists for every cycle. Before: the layout makes the worker reach and twist during every repair. After: frequent parts and the test unit sit inside the primary work zone. Frequent parts moved from rear reach to front reach, reducing upper-arm elevation and shoulder load that RULA would flag. The test unit moved from side to front, reducing trunk and neck twist that REBA would consider. The layout changed the job for every cycle, which is stronger than reminding Chen to be careful. Layout is posture control. Ergonomic workstation…
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