{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T02:22:14Z","timestamp":1791166934461,"version":"4.1.0"},"reference-count":33,"publisher":"National Athletic Trainers' Association","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2009,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> Chronic ankle instability (CAI) has been previously and separately associated with deficits in dynamic stability and proximal joint neuromuscular alterations, but how the 2 factors relate is unclear.<jats:italic>Context:<\/jats:italic><\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> To examine the contributions of lower extremity kinematics during an assessment of dynamic stability in participants with CAI.<jats:italic>Objective:<\/jats:italic><\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> Repeated-measures case-control design.<jats:italic>Design:<\/jats:italic><\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> Research laboratory.<jats:italic>Setting:<\/jats:italic><\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> Thirty-eight volunteers were categorized into groups of those with unilateral CAI (10 men, 9 women; age \u200a=\u200a 20.3 \u00b1 2.9 years, height \u200a=\u200a 1.77 \u00b1 0.1 m, mass \u200a=\u200a 76.19 \u00b1 13.19 kg) and those without (10 men, 9 women; age \u200a=\u200a 23.1 \u00b1 3.9 years, height \u200a=\u200a 1.72 \u00b1 0.1 m, mass \u200a=\u200a 72.67 \u00b1 16.0 kg).<jats:italic>Patients or Other Participants:<\/jats:italic><\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> Participants performed 10 jump landings on each limb with a rest period between test limbs.<jats:italic>Intervention(s):<\/jats:italic><\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> Ankle plantar flexion, knee flexion, and hip flexion were captured with an electromagnetic tracking device at the point of ground impact. Ground reaction force data were used to calculate time to stabilization in the anteroposterior and mediolateral planes.<jats:italic>Main Outcome Measure(s):<\/jats:italic><\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> For the anteroposterior plane, we found a group-by-side interaction (<jats:italic>P<\/jats:italic> \u200a=\u200a .003), with the injured side of the CAI group demonstrating reduced dynamic stability. For knee flexion, a group main effect (<jats:italic>P<\/jats:italic> \u200a=\u200a .008) showed that the CAI group landed with less knee flexion than the control group.<jats:italic>Results:<\/jats:italic><\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title\/>\n          <jats:p> Diminished dynamic stability and decreased knee flexion angle at initial contact were apparent in the CAI group and may play a role in contributing to CAI. This altered kinematic pattern may influence preventive and therapeutic interventions for those with CAI.<jats:italic>Conclusions:<\/jats:italic><\/jats:p>\n        <\/jats:sec>","DOI":"10.4085\/1062-6050-44.4.350","type":"journal-article","created":{"date-parts":[[2009,12,30]],"date-time":"2009-12-30T15:36:38Z","timestamp":1262187398000},"page":"350-355","source":"Crossref","is-referenced-by-count":124,"title":["Alterations in Knee Kinematics and Dynamic Stability Associated With Chronic Ankle Instability"],"prefix":"10.4085","volume":"44","author":[{"given":"Phillip A.","family":"Gribble","sequence":"first","affiliation":[{"name":"The University of Toledo, Toledo, OH"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard H.","family":"Robinson","sequence":"additional","affiliation":[{"name":"The University of Toledo, Toledo, OH"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2557","reference":[{"issue":"1","key":"i1062-6050-44-4-350-Garrick1","series-title":"Clin Sports Med","first-page":"29","article-title":"The epidemiology of foot and ankle injuries in sports.","volume":"7","author":"Garrick, J. 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Functional instability of the ankle: differences in patterns of ankle and knee movement prior to and post landing in a single leg jump.Int J Sports Med2002. 231:64\u201368."},{"issue":"6","key":"i1062-6050-44-4-350-Caulfield2","series-title":"Clin Biomech (Bristol, Avon)","first-page":"617","article-title":"Changes in ground reaction force during jump landing in subjects with functional instability of the ankle joint.","volume":"19","author":"Caulfield, B.","year":"2004","unstructured":"Caulfield, B. and M.Garrett. Changes in ground reaction force during jump landing in subjects with functional instability of the ankle joint.Clin Biomech (Bristol, Avon)2004. 196:617\u2013621."},{"issue":"2","key":"i1062-6050-44-4-350-Wikstrom1","series-title":"Med Sci Sports Exerc","first-page":"169","article-title":"Detection of dynamic stability deficits in subjects with functional ankle instability.","volume":"37","author":"Wikstrom, E. A.","year":"2005","unstructured":"Wikstrom, E. A., M. D.Tillman, and P. A.Borsa. Detection of dynamic stability deficits in subjects with functional ankle instability.Med Sci Sports Exerc2005. 372:169\u2013175."},{"issue":"2","key":"i1062-6050-44-4-350-Brown1","series-title":"J Sport Rehabil","first-page":"122","article-title":"Assessing functional ankle instability with joint position sense, time to stabilization, and electromyography.","volume":"13","author":"Brown, C.","year":"2004","unstructured":"Brown, C., S.Ross, R.Mynark, and K. M.Guskiewicz. Assessing functional ankle instability with joint position sense, time to stabilization, and electromyography.J Sport Rehabil2004. 132:122\u2013134."},{"issue":"6","key":"i1062-6050-44-4-350-Ross1","series-title":"Clin J Sport Med","first-page":"332","article-title":"Examination of static and dynamic postural stability in individuals with functionally stable and unstable ankles.","volume":"14","author":"Ross, S. E.","year":"2004","unstructured":"Ross, S. E. and K. M.Guskiewicz. 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Fatigue effects dynamic stabilization time in subjects with functionally unstable ankles [abstract].J Athl Train2001. 36suppl:S32."},{"issue":"1","key":"i1062-6050-44-4-350-Ross3","series-title":"J Athl Train","first-page":"44","article-title":"Assessment tools for identifying functional limitations associated with functional ankle instability.","volume":"43","author":"Ross, S. E.","year":"2008","unstructured":"Ross, S. E., K. M.Guskiewicz, M. T.Gross, and B.Yu. Assessment tools for identifying functional limitations associated with functional ankle instability.J Athl Train2008. 431:44\u201350."},{"issue":"3","key":"i1062-6050-44-4-350-Wikstrom2","series-title":"Med Sci Sports Exerc","first-page":"397","article-title":"Dynamic postural stability deficits in subjects with self-reported ankle instability.","volume":"39","author":"Wikstrom, E. A.","year":"2007","unstructured":"Wikstrom, E. A., M. D.Tillman, T. L.Chmielewski, J. J.Cauraugh, and P. A.Borsa. 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Bilateral deficits in postural control following lateral ankle sprain.Foot Ankle Int2004. 2511:833\u2013839."},{"issue":"11","key":"i1062-6050-44-4-350-McNittGray1","series-title":"J Biomech","first-page":"1471","article-title":"Mechanical demand and multijoint control during landing depend on orientation of the body segments relative to the reaction force.","volume":"34","author":"McNitt-Gray, J. L.","year":"2001","unstructured":"McNitt-Gray, J. L., D. M.Hester, W.Mathiyakom, and B. A.Munkasy. Mechanical demand and multijoint control during landing depend on orientation of the body segments relative to the reaction force.J Biomech2001. 3411:1471\u20131482."},{"issue":"5","key":"i1062-6050-44-4-350-Madigan1","series-title":"J Electromyogr Kinesiol","first-page":"491","article-title":"Changes in landing biomechanics during a fatiguing landing activity.","volume":"13","author":"Madigan, M. L.","year":"2003","unstructured":"Madigan, M. L. and P. E.Pidcoe. Changes in landing biomechanics during a fatiguing landing activity.J Electromyogr Kinesiol2003. 135:491\u2013498."}],"container-title":["Journal of Athletic Training"],"original-title":[],"link":[{"URL":"https:\/\/nata.kglmeridian.com\/view\/journals\/attr\/44\/4\/article-p350.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/meridian.allenpress.com\/jat\/article-pdf\/44\/4\/350\/1454892\/1062-6050-44_4_350.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/nata.kglmeridian.com\/downloadpdf\/journals\/attr\/44\/4\/article-p350.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/nata.kglmeridian.com\/downloadpdf\/journals\/attr\/44\/4\/article-p350.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,12]],"date-time":"2025-06-12T00:37:22Z","timestamp":1749688642000},"score":1,"resource":{"primary":{"URL":"https:\/\/nata.kglmeridian.com\/view\/journals\/attr\/44\/4\/article-p350.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,7]]},"references-count":33,"journal-issue":{"issue":"4"},"URL":"https:\/\/doi.org\/10.4085\/1062-6050-44.4.350","relation":{},"ISSN":["1062-6050"],"issn-type":[{"value":"1062-6050","type":"print"}],"subject":[],"published":{"date-parts":[[2009,7]]}}}