19.4 Working in a seated position: office work

Essential equipment

  • Adjustable chair with a five‐castor base

Procedure

ActionRationale

  1. 1.
    Adjust the chair so your lower back is properly supported. The chair should be adjustable so that the height, back position and tilt can all be changed easily.
    A correctly adjusted chair will reduce the strain on your body (HSE [36], E).
  2. 2.
    Adjust the chair height so that:
     
    • your buttocks are at the back of the chair and your lumbar spine is supported
    To ensure a neutral spine is maintained (HSE [36], E).
    • your feet are placed flat on the floor or resting on a footrest if required
    To ensure the lower limb joints are in a mid‐range position (HSE [36], E).
    • your elbows are by the sides of your body so your arms form L‐shapes at the elbow joints with your wrists, and so your forearms are parallel to the floor and in neutral midline positions
    To help reduce repetitive strain injuries (HSE [36], E).
    • the screen is positioned directly in front of you, approximately an arm's length away, with the top of the screen at eye level.
    To reduce uncomfortable neck positions (HSE [36], E).
  3. 3.
    Position and use the mouse as close to your body as possible. A mouse mat with a wrist pad may help to keep the wrist in a neutral position and avoid awkward bending.
    To reduce unnecessary stresses and strains on the joints.