<article xmlns:xlink="http://www.w3.org/1999/xlink" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher">episciences.org</journal-id><journal-id journal-id-type="issn" specific-use="electronic">3076-1158</journal-id><journal-title-group><journal-title>Multidisciplinary Biomechanics Journal</journal-title><abbrev-journal-title>MBJ</abbrev-journal-title></journal-title-group><issn specific-use="electronic">3076-1158</issn><publisher><publisher-name>Société de Biomécanique</publisher-name><publisher-loc>                                            Paris, France                                        <email>support@episciences.org</email>                    <uri>https://www.episciences.org</uri>                    <uri>https://mbj.episciences.org</uri>                </publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.46298/mbj.17921</article-id><article-id pub-id-type="hal">hal-05567417</article-id><article-id pub-id-type="publisher-id">http://mbj.episciences.org/17932</article-id><article-catgories><series-text content-type="text">Methodological approaches for motion analysis</series-text></article-catgories><title-group><article-title xml:lang="en">Inverse kinematics of the closed-loop shoulder: Quadratic Programming is faster than Interior-Point methods with equivalent accuracy</article-title></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">0000-0002-9335-630X</contrib-id><name><surname>Puchaud</surname><given-names>Pierre</given-names></name><institution-wrap><institution><institution_id type="ror">https://ror.org/03pfm1t26</institution_id><institution_name>Augmenting human comfort in the factory using cobots</institution_name></institution></institution-wrap></contrib><contrib contrib-type="author"><name><surname>Millan</surname><given-names>Mégane</given-names></name><institution-wrap><institution><institution_id type="ror">https://ror.org/04c96ng72</institution_id><institution_name>Models of visual object recognition and scene understanding</institution_name></institution></institution-wrap></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">0000-0002-1187-1392</contrib-id><name><surname>Joseph</surname><given-names>Lucas</given-names></name><institution-wrap><institution><institution_id type="ror">https://ror.org/03pfm1t26</institution_id><institution_name>Augmenting human comfort in the factory using cobots</institution_name></institution></institution-wrap></contrib></contrib-group><pub-date pub-type="epub"><day>01</day><month>06</month><year>2026</year></pub-date><volume>International Shoulder Group (ISG) Congress 2026</volume><uri specific-use="for-review">http://mbj.episciences.org/17932/pdf</uri><self-uri>http://mbj.episciences.org/17932</self-uri><kwd-group kwd-group-type="author" xml:lang="en"><kwd>quadratic progamming</kwd><kwd>inverse kinematics</kwd><kwd>close-loop</kwd><kwd>constraints</kwd><kwd>optimization</kwd><kwd>[PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]</kwd></kwd-group><permissions><copyright-year>2026</copyright-year><copyright-holder>The Author(s)</copyright-holder><license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0"/></permissions><counts><page-count count="3"/></counts></article-meta></front><body/></article>