Evaluate Contact In The Relevant Positions
Ask the user to try the headrest during the posture changes relevant to their work. Its stated purpose concerns support for the head and upper neck when reclining or changing position, so an assessment should include those situations where the chair permits them. Observe where contact occurs and ask the user to describe the experience. Avoid assuming that a headrest must remain in contact throughout every task. The assessment should establish whether its position is appropriate for the intended user and activity, without promising a particular comfort or health outcome from its presence.
Establish Which Components Can Be Adjusted
An included headrest may be integrated or attached, but its adjustment capabilities need separate confirmation. Request details about any available movement and the limits of that movement. Back height, seat depth and seat height adjustment also vary across the selection. Set up those components before judging the headrest's position, since the overall seating arrangement affects where the user's head sits relative to it. If several people will share the chair, repeat the process with each person and record any settings or limitations that need attention during a change of user.

