{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T00:44:25Z","timestamp":1760921065379,"version":"build-2065373602"},"reference-count":39,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2012,10,31]],"date-time":"2012-10-31T00:00:00Z","timestamp":1351641600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2013,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Our aim was to evaluate the effects of the use of oral contraceptives (OC) on the hip and knee kinematics of healthy women during anterior stair descent.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Forty volunteers aged from 18 to 26 years were divided into two groups: 1\u2014Group of women who had used OC for at least 3\u00a0months prior to evaluation (<jats:italic>n<\/jats:italic> = 20) and 2\u2014Group of women who did not use OC (<jats:italic>n<\/jats:italic> = 20). The knee flexion\/extension and abduction\/adduction, hip flexion\/extension, abduction\/adduction and medial\/lateral rotation excursions (degrees) were calculated for the dominant (supporting) limb during anterior stair descent. <jats:italic>T<\/jats:italic> tests for independent samples were used to compare the kinematic differences between the groups (\u03b1 = 0.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>No significant difference was verified between the groups regarding the maximum excursion of knee flexion (n.s.) and abduction (n.s.) or hip flexion (n.s.), adduction (n.s.) and medial rotation (n.s.). When considering the knee flexion at 50\u00b0, no significant difference was verified between the groups regarding the excursion of knee abduction (n.s.) or hip flexion (n.s.) adduction (n.s.) and medial\/lateral rotation (n.s.).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>These results suggest that the use of OC does not influence the hip and knee kinematics during anterior stair descent. Therefore, the role of this medication as a protective factor against anterior cruciate ligament injuries remains questionable.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of evidence<\/jats:title><jats:p>III.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-012-2248-3","type":"journal-article","created":{"date-parts":[[2012,10,29]],"date-time":"2012-10-29T21:55:04Z","timestamp":1351547704000},"page":"2823-2830","source":"Crossref","is-referenced-by-count":5,"title":["Effects of the use of oral contraceptives on hip and knee kinematics in healthy women during anterior stair descent"],"prefix":"10.1002","volume":"21","author":[{"given":"Daniel Ferreira Moreira","family":"Lobato","sequence":"first","affiliation":[{"name":"Department of Physical Therapy S\u00e3o Carlos Federal University S\u00e3o Carlos SP Brazil"},{"name":"Departamento de Fisioterapia Universidade Federal de S\u00e3o Carlos Rodovia Washington Luis, km 235 CEP: 13565\u2010905 S\u00e3o Carlos SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rodrigo de Marche","family":"Baldon","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy S\u00e3o Carlos Federal University S\u00e3o Carlos SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paloma Yan Lam","family":"Wun","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy S\u00e3o Carlos Federal University S\u00e3o Carlos SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paulo Roberto Pereira","family":"Santiago","sequence":"additional","affiliation":[{"name":"School of Physical Education and Sport University of S\u00e3o Paulo Ribeir\u00e3o Preto SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F\u00e1bio Viadanna","family":"Serr\u00e3o","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy S\u00e3o Carlos Federal University S\u00e3o Carlos SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2012,10,31]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"Abdel\u2010AzizYL KaharaHM(1971)Direct linear transformation from comparator coordinates into object\u2010space coordinates.Symposium on close\u2010range photogrammetry. 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