The effect of sitting posture on the loads at cervico-thoracic and lumbosacral joints

Technology and Health Care : Official Journal of the European Society for Engineering and Medicine
Yuri KwonGwang-Moon Eom

Abstract

The sitting in an awkward posture for a prolonged time may lead to spinal or musculoskeletal disease. It is important to investigate the joint loads at spine while sitting. The purpose of this study was to investigate the joint moment and antero-posterior (AP) reaction force at cervico-thoracic and lumbosacral joint for various sitting postures. Twenty healthy males participated in this study. Six sitting postures were defined from three spinal curvatures (slump, flat, and lordosis) and two arm postures (arms-on-chest and arms-forward). Kinematic and kinetic data were measured in six sitting postures from which joint moment and AP reaction force were calculated by inverse dynamics. In the cervico-thoracic joint, joint moment and AP reaction force were greater in slump than the flat and lordosis postures (p< 0.001) and also in arms-forward posture compared to arms-on-chest posture. In the lumbosacral joint, joint moment and AP reaction force were greater in slump than flat and lordotic posture (p< 0.001) but there was no difference between different arm postures. The joint loads (moment and AP reaction force) at the cervico-thoriacic joint were closely related to the head flexion angle (r> 0.86) while those at the lumbosacral jo...Continue Reading

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Citations

Jul 2, 2020·International Journal of Environmental Research and Public Health·Kyoung-Sim JungTae-Sung In
Apr 15, 2020·International Journal of Environmental Research and Public Health·Pilar Sainz de BarandaFernando Santonja-Medina
Jun 3, 2021·International Journal of Environmental Research and Public Health·Yi-Liang KuoYi-Ju Tsai
Jul 27, 2021·Pain Research & Management : the Journal of the Canadian Pain Society = Journal De La Société Canadienne Pour Le Traitement De La Douleur·Tae-Sung InHwi-Young Cho
Aug 28, 2021·International Journal of Environmental Research and Public Health·Tae-Sung InHwi-Young Cho

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