Q. I get a lot of back pain when I sit at my computer. Do I need a new chair?
A. Poor sitting posture can cause back pain. Be sure to sit with your spine in good upright alignment. Improve your sitting posture by using a comfortable chair designed to support optimal posture. Avoid slouching by keeping your low back firmly against the back of the chair. Slouching your spine can strain your neck forward, putting extra pressure on the nerves and arteries leading to your arms. Your shoulders should be relaxed, and your elbows, hips, and knees should be bent at right angles (90 degrees). Avoid putting pressure on the back of your knees. Your feet should be kept flat on the floor or supported by a footrest. If your chair does not give you the support you need to keep in good body alignment, you may need a new chair. Otherwise, try placing a rolled towel or pillow against the small of your back, or consider purchasing one of the many commercial lumbar cushions that are available to help improve your sitting posture.