For chairs not thus equipped, pads can be used to help maintain that all-important lumbar curve. Without lumbar support, many sitters will develop sciatica, a condition that causes pain to radiate from the lower back down the legs. Furthermore, computer workers should not have to bend their neck forward to see the monitor. Tilting the chin downward to the chest results in an extension of the cervical curve, running counter to the natural shape. The worst thing you can do is sit for hours on end.
Motion is key to life.
He suggests that office employees incorporate a few simple stretches during breaks, exercises to be performed right at the workstation. Neck extensions, shoulder squeezes, and spinal twists can loosen up tight back muscles and generally relieve tension. Physical exercise is essential to good back health. Strong backs are far less susceptible to pain and injury. Walking, swimming, or bicycling in your leisure time can pay dividends at work.