caa a22 4500 445834927 CHVBK 20180317145327.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s00586-010-1574-8 doi (NATIONALLICENCE)springer-10.1007/s00586-010-1574-8 Idiopathic scoliosis: relations between the Cobb angle and the dynamical strategies when sitting on a seesaw [Elektronische Daten] [Anne-Violette Bruyneel, Pascale Chavet, Eric Ebermeyer, Serge Mesure] The aim of this study was to determine the influence of the severity of the spinal curve on the postural regulation when self-imposed disturbances occur in a seated position in anteroposterior (AP) and mediolateral (ML) orientations. Twelve female adolescents with a right thoracic scoliosis (Cobb=30.4°±9.7) were included in this study. The ground reaction forces (GRF) were studied while the subjects were maintaining their sitting on a seesaw (ML or AP destabilisation). Five conditions were tested: eyes open; with additional loads placed onto the subject's right or left shoulder; or onto the subject's right or left pelvis. We tested the correlation between the Cobb angle and the postural parameters (index of performance and GRF variability) for each condition. When the destabilisation was AP, the Cobb angle was significantly correlated with GRF variability and anterior and concavity index of performance. Two conditions showed higher correlations: stabilisation with the concavity pelvis load (GRF variability) and the open eyes (index of performance). In contrast, whatever the condition tested was, no link was found when the destabilisations were applied in ML direction. The destabilisation in a seated position highlights the influence of the curve severity on the postural organisation. In seated position, the postural control strategies specific to the scoliotic patients were always correlated by severity of curve, especially when the destabilisation is applied in AP directions. This study showed that the unstable seating position can be considered as a pertinent paradigm to help finding a postural clinical index for adolescent idiopathic scoliosis. Springer-Verlag, 2010 Idiopathic scoliosis nationallicence Cobb angle nationallicence Postural control nationallicence Sitting balance nationallicence Bruyneel Anne-Violette Institut des Sciences du Mouvement, UMR 6233 CNRS-Université de la Méditerranée, 163 avenue de Luminy, CP 910, 13288, Marseille Cedex 09, France aut Chavet Pascale Institut des Sciences du Mouvement, UMR 6233 CNRS-Université de la Méditerranée, 163 avenue de Luminy, CP 910, 13288, Marseille Cedex 09, France aut Ebermeyer Eric CHU Bellevue, Université Jean Monnet, Saint Etienne, France aut Mesure Serge Institut des Sciences du Mouvement, UMR 6233 CNRS-Université de la Méditerranée, 163 avenue de Luminy, CP 910, 13288, Marseille Cedex 09, France aut European Spine Journal Springer-Verlag 20/2(2011-02-01), 247-253 0940-6719 20:2<247 2011 20 586 https://doi.org/10.1007/s00586-010-1574-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-010-1574-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bruyneel Anne-Violette Institut des Sciences du Mouvement, UMR 6233 CNRS-Université de la Méditerranée, 163 avenue de Luminy, CP 910, 13288, Marseille Cedex 09, France aut NATIONALLICENCE 700 1- Chavet Pascale Institut des Sciences du Mouvement, UMR 6233 CNRS-Université de la Méditerranée, 163 avenue de Luminy, CP 910, 13288, Marseille Cedex 09, France aut NATIONALLICENCE 700 1- Ebermeyer Eric CHU Bellevue, Université Jean Monnet, Saint Etienne, France aut NATIONALLICENCE 700 1- Mesure Serge Institut des Sciences du Mouvement, UMR 6233 CNRS-Université de la Méditerranée, 163 avenue de Luminy, CP 910, 13288, Marseille Cedex 09, France aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20/2(2011-02-01), 247-253 0940-6719 20:2<247 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer