NCIDQ IDFX Practice Exam

What can significantly reduce leg fatigue in a workstation?

1. Proper keyboard height

2. Waterfall front edge design

3. Ergonomic chair design

4. Flexible work hours

The correct answer is: Waterfall front edge design

A waterfall front edge design can significantly reduce leg fatigue by providing a more comfortable and supportive seating experience. This design features a gently rounded front edge that minimizes pressure on the thighs and improves circulation. When seated, traditional straight-edged workstation surfaces may cause discomfort and pinching of the legs, leading to fatigue over time. In contrast, the waterfall design encourages better posture, allowing for more natural positioning of the legs, which helps alleviate strain and encourages blood flow during extended periods of sitting. While proper keyboard height, ergonomic chair design, and flexible work hours all contribute to overall comfort and reducing fatigue, they primarily address upper body posture, support, and work-life balance rather than directly impacting lower body fatigue as effectively as a waterfall front edge can. The emphasis of the question is on factors that directly affect leg fatigue, with the waterfall design specifically addressing this issue in a way that enhances seat comfort and promotes better leg positioning.