Begin With The Work Surface
Without chair-mounted armrests, the relationship between the user and the desk becomes a central part of the assessment. Armless office chairs with adjustable seat depth should be tested with work equipment in its usual position. Observe where the forearms rest, how the hands reach the keyboard and whether the desk edge creates uncomfortable contact. Do not assume that removing arms automatically establishes an appropriate working position. The work surface still needs to suit the person and task. Record any changes being considered and test them with the same seated routine before deciding that the arrangement works.
Use Depth Adjustment To Assess Thigh Support
The seat-depth control changes the front-to-back seating dimension, so assess it against the user's legs and backrest contact. Ask the person to find a position that supports the thighs without uncomfortable pressure behind the knees. Then have them resume an ordinary task and check that they continue to use the backrest. When comparing office chairs, examine the usable adjustment range and the clarity of the control. These details are not established simply by knowing that depth adjustment is present. A short trial across several positions can show whether the available travel is useful to that employee.
