Best Ergonomic Chair The best ergonomic chair will adjust fit your body, regardless of your height or weight. It will eliminate the four major sources of discomfort in the workplace: back pain, which are neck pain, eye strain, and abdominal/leg pain. Back Pain Back pain results from a number of causes. One of these is the improper placement of your feet. If you tilt back in an old 70′s or 80′s style chair, you will notice your feet lifting off the ground.