A Comparison of the Effects of Two Sitting Postures on Back and Referred PainWILLIAMS, MAYNARD M., Ms, BSc, Dip Tchg*; HAWLEY, JOHN A., MA, PGCE, BSc (Hons)†; McKENZIE, ROBIN A., Dip MT, FNZSP (Hon)‡; van WIJMEN, PAULA M., Dip MT, MNZSP‡Spine: October 1991 - Volume 16 - Issue 10 - p 1185–1191 ARTICLE: PDF Only Abstract Author Information This study compared the effects of sitting with portable supports in either a kyphotic or lordotic posture on low-back and referred pain. Two hundred ten patients with low-back and/or referred pain were randomly assigned to either a kyphotic posture or lordotic posture group. The kyphotic and lordotic postures were facilitated by the use of a flat foam cushion or lumbar roll, respectively. Pain location, back pain, and leg pain intensity were assessed over a 24–48-hour period under both standardized clinical settings and general sitting environments. When sitting with a lordotic posture, back and leg pain were significantly reduced and referred pain shifted towards the low back. This study demonstrates that in general sitting environments a lumbar roll results in: 1) reductions in back and leg pain; and 2) centralization of pain. These findings do not apply to patients with stenosis or spondylolisthesis, whose symptoms may be aggravated by use of a lumbar roll. *School of Physiotherapy, Faculty of Health Studies, Auckland Institute of Technology, Auckland, New Zealand †MRC/UCT Bioenergetics of Exercise Research Unit, Department of Physiology, Sports Science Center, University of Cape Town Medical School, Cape Town, South Africa © Lippincott-Raven Publishers.