“The human spine is dynamic and requires dynamic support during seated periods. The four regions of the spine have unique attributes and requirements; a good work chair should address those unique requirements.” 

– Supporting the Spine When Seated, The Science and Research Behind the Mirra 2 Chair

Keeping the Spine Aligned

A good work chair addresses the unique requirements of the four regions of the spine: the neck, trunk, lower back, and tailbone, also called the cervical, thoracic, lumbar, and sacrum regions, respectively.  

Neck: The cervical spine, or neck, is the uppermost part of the spine, comprising the seven vertebrae that connect the skull to the shoulders. The neck is strong and flexible, responsible for supporting the weight of the head and allowing an incredible range of movements. Poor posture over long hours at a work desk can cause pain and stiffness in the neck, sometimes called “tech neck.” To avoid this unfortunate affliction, it is vital to choose an office chair with neck support or one that promotes healthy sitting posture. 

Trunk: Connected to the rib cage and consisting of the 12 vertebrae in the middle of the spine, the thoracic region, or trunk, is mostly rigid. When properly positioned, it curves outward, forming the kyphotic curve of the spine.  

Lower Back: The most famous culprit of back pain, the lumbar region, or lower back, consists of only five vertebrae. But they are the largest in the entire spinal column, and for good reason: The lower back supports the weight of the body and is highly flexible. Together with the cervical spine, the lumbar spine curves inward, forming the lordotic curve, an essential part of the spine’s S-shape that requires adaptable support. Office chairs with lumbar support often curve inward at the base of the seat back, contouring the shape of the lordotic curve. 

Tailbone: The sacrum, or tailbone, is the five fused vertebrae nestled in the pelvis. When seated, the pelvis tends to angle backward, flattening or even reversing the lordotic curve, which can cause lower back pain. The best office chair for back pain keeps the pelvis stable and tilted forward in a natural position, maintaining the concave lordotic curve. 

Most work chairs, don’t offer comprehensive spinal support that targets each region of the spine, often specifically neglecting support for the sacrum. Also, many foam and fabric chairs have a backrest that mimics the general contours of the human spine, but they don’t respond to a person’s unique shape or allow flexibility in movement. Many mass-market office chairs are one-size-fits-all, despite the vast diversity in shape and size of the human population. 

The Best Office Chairs for Back Pain, Backed by Science 

Herman Miller offers ergonomic office chairs that provide holistic support for the four regions of the spine and have the flexibility to keep people moving throughout the day. 

In Conclusion 

With the anatomy lesson learned, the body’s full range of motion considered, and the options laid out, which chair is the best? Is the Aeron Chair the best office chair for back pain? Or is it the Embody? The truth is: The right office chair for one person won’t necessarily be the right office chair for another. As we’ve learned through research and tests, humans have an incredibly diverse range of anatomies and movements, and no single chair can support them all.

The best chair for you will cater to your specific work style and needs. Take our Office Chairs Quiz to answer some questions about your sitting habits and receive personalized recommendations for the best office chair for you.

Shop all Ergonomic Office Chairs

Sources: