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Cornell University Ergonomics Web

Ergonomic Intervention & Follow-up Study
of the
City of Ithaca
Department of Planning and Development

 
Introduction Workstations Results Discussion
 

Workstation 11 (previously 15b)

Workstation design Changes:
Installed articulating keyboard and mouse tray
Decreased monitor height
Decreased desk height
Injury

Discomfort eliminated in:
Lower back
neck

Potential:
Wrist
Shoulders

Posture
RULA Score
Before changes: 3
After changes: 2
1 or 2: Acceptable
3 or 4: Investigate further
4 or 5: Investigate further & change soon
7: Investigate & change immediately

Observations
Wrists in neutral position
Neck in neutral position
Legs supported by floor
Slight reaching for phone use

Comments

Although this employee switched workstations during the study, the workstations were similar and the recommendations for the first workstation were applied to the current workstation. Mouse use is the main task of this employee, and the articulating keyboard and mouse tray produced an immediate improvement in wrist posture, especially during mouse use. Discomfort in the neck and back was also eliminated by decreasing the height of the desk and monitor. The employee's legs are supported with the feet firmly on the floor. The overall changes in the arrangement of the workstation allow the employee to lean back in the chair and fully support their back and neck.

The employee is very satisfied with the changes in the workstation and should attempt to make similar changes to her workstation at home, which was identified as the cause of some current discomfort.

Data

For Comfort Scales (mouse, chair, keyboard, phone, screen)
5: Very Uncomfortable
4: Uncomfortable
3: Slightly Uncomfortable
2: Comfortable
1: Very Comfortable
*For RULA:
1 or 2: Acceptable
3 or 4: Investigate further
4 or 5: Investigate further & change soon
7: Investigate & change immediately
Before/After

Before

After

Next: Workstation 12