Ergonomic Assessment - Sample Report
Ergonomic Assessment for Jane Doe
A worksite evaluation was conducted for Jane Doe of Company X on February 20, 2013. The purpose of this assessment was to identify risk factors for cumulative musculoskeletal trauma injury. OSHA seated office worker checklists and other ergonomic data was used for this analysis.
Jane spends 10 hours per day or more sitting in front of a computer. This puts her into the Intensive Use category. She is a frequent mouse user with little data entry other than writing documents. She spends little to no time on the phone.
Jane experiences pain both during and after sitting in the neck, shoulders, arms, and tailbone. She has been diagnosed with Degenerative Disk Disease.
Jane’s chair was made by Global in 2003. It has the following adjustments: chair height, arm height, seat depth, back angle, and chair pitch. It has an adjustable lumbar support. The seat and arms are lightly padded. The arms do not swivel. The seat is not contoured. A footrest was not being used.
Desk & Computer
The desk height is 28.5”. The mouse and keyboard are located on the desktop. Jane uses only a desktop computer. The monitor is positioned at the proper distance but is a few inches too high.
Positive Ergonomic Factors
- The chair is highly adjustable.
- Jane is up and down a lot over the day (motion is always good).
- Jane’s sitting posture is good.
- Even on the lowest setting, the adjustable lumbar is too aggressive. This causes Jane to not make contact with the upper half of the chair back.
- The foam in the chair has lost much its support due to 10 years of use. Expected lifetime of standard support foam is about 5 to 10 years. This causes pressure points on the arms and pelvis.
- The arms on the chair do not pivot inward and are too far apart. This causes Jane to reach out to the keyboard without arm support. This is often the cause of neck and shoulder pain.
- A flat seat causes pressure points on the pelvis. A contoured seat distributes body weight better. This is often the cause of tailbone pain.
- Given the large number of hours that Jane spends each day in her chair (10+), the age of the chair (10 years), the poor fit in the lumbar and the arms, and the fact that she experiences chronic pain from sitting, it is my opinion that her chair can not be modified to meet her needs.
- I recommend a footrest for anyone who sits all day. A footrest gives the user something to push against. This helps the user sit back and stay in full contact with the back of the chair which prevents the neck and shoulder pain caused by leaning forward.
I recommend a highly adjustable ergonomic office chair with the following features:
- A contoured memory foam seat with a coccyx cutout. This type of seat relieves pressure on the lower back and the nerve cluster at the tailbone. Memory foam reduces pressure points and lasts longer than standard support foam.
- A high back with an adjustable back angle and lumbar support that can be adjusted to the exact depth and height needed to support the user’s back. It is essential that core muscles are not engaged while sitting to avoid lower back pain.
- Highly adjustable arms with memory foam that facilitate a custom fit to the user. Adjustments needed are up/down, in/out, and swivel. The chair arms should allow the user to do their work without engaging their arm muscles. This helps relieve upper back, neck, and shoulder pain and prevents Carpal Tunnel Syndrome.
- A heavy duty mechanism that allows the chair to be adjusted to the angle that is most comfortable to the user and a seat depth adjustment for an exact fit to the users upper leg. These items help reduce undesirable pressure points.
Your video can be viewed at link (see a sample video below). It is not searchable (you must have the URL to view the video).