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healthy posture and spine

Selecting a Chair

Consider your work tasks, and your body size and shape, when choosing a chair. A single size or type of chair is not appropriate for all tasks, and cannot suit all body shapes and sizes.When you sit to perform a task, your spine is most comfortable when it's in "neutral posture", a slightly reclined sitting position.The following adjustment options can help you maintain "neutral posture".

healthy posture and spine

Selecting a Chair

Consider your work tasks, and your body size and shape, when choosing a chair. A single size or type of chair is not appropriate for all tasks, and cannot suit all body shapes and sizes.When you sit to perform a task, your spine is most comfortable when it's in "neutral posture", a slightly reclined sitting position.The following adjustment options can help you maintain "neutral posture".

Seat

  • Height: Seat height should adjust to fit the height of the user and/or the work surface.
  • Tilt: The seat should adjust at a variety of angles to allow for changing positions and postures for different tasks. A rocking mechanism can provide continuous active repositioning while working.
  • Depth: The seat should support your hips and legs, and provide a 1-2" space between the front edge of the seat and the back of your knees. Sliding seat options can help you set the proper depth position.

Backrest

    chair back angle modified small
  • Height: The backrest should adjust up and down to fit the curves of your spine. Adjustable lumbar support is often necessary to accommodate flat, average or deep low back curves.
  • Contour: The backrest of the chair should support your upper and lower back, while allowing free arm movement. If you recline, you may need a backrest that extends up to your shoulders or neck.
  • Angle: The backrest should adjust independently from the seat tilt to provide optimal support for a variety of work positions, such as reclining or leaning forward.

Armsrest

  • Armrest: Armrests can provide additional upper extremity and back support when taking breaks or pauses between writing or keying tasks.
  • Height: If you have armrests, they should be adjustable. Your forearms should be able to rest on the armrests with your shoulders relaxed.
  • Width: Inward and outward adjustment provides additional personal fit. This is especially important with large and small stature individuals.
  • Pivot: Pivoting armrests provide both width and angle adjustment of the armrests.