{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T04:48:39Z","timestamp":1791866919951,"version":"4.3.4"},"reference-count":43,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T00:00:00Z","timestamp":1791763200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T00:00:00Z","timestamp":1791763200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Foot and Ankle Research"],"published-print":{"date-parts":[[2026,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>This study aimed to compare ankle kinematics and muscle activation between individuals with and without chronic ankle instability (CAI), both prior to and following landing on an inversion trapdoor during walking, with a particular focus on the feedforward pre\u2010activation of lateral ankle muscles and the consequent ankle kinematics post\u2010perturbation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Forty participants were enrolled, including 20 with CAI and 20 age\u2010 and sex\u2010matched non\u2010CAI controls. They walked at their own pace on a custom\u2010designed walking platform equipped with a trapdoor programmed to trigger a 24\u00b0 inversion perturbation, simulating lateral ankle sprain conditions, across three unanticipated trials. Their lower limb muscle electromyography and ankle kinematics were synchronously collected 200\u00a0ms pre\u2010 and 200\u00a0ms post\u2010perturbation. Continuous between\u2010group data were compared by independent sample t\u2010tests.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      CAI individuals showed higher pre\u2010activation in the peroneus longus (\u2212200.0 to \u2212196.4\u00a0ms, mean\n                      <jats:sub>diff<\/jats:sub>\n                      : \u221211.38%,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.049; \u221254.6 to \u221211.0\u00a0ms, mean\n                      <jats:sub>diff<\/jats:sub>\n                      : \u221210.60%,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.011) and the lateral gastrocnemius (\u2212200.0 to \u2212175.4\u00a0ms, mean\n                      <jats:sub>diff<\/jats:sub>\n                      : \u22127.62%,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.029) prior to perturbation, and lower activation in the peroneus longus at 72.1 to 98.0\u00a0ms (mean\n                      <jats:sub>diff<\/jats:sub>\n                      : 17.46%,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.029) post\u2010perturbation. They also showed greater ankle inversion in four clusters post\u2010perturbation (0 to 111.0\u00a0ms, mean\u00a0\n                      <jats:sub>diff<\/jats:sub>\n                      : \u22124.85\u00b0,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001; 117.0 to 128.0\u00a0ms, mean\n                      <jats:sub>diff<\/jats:sub>\n                      : \u22121.83\u00b0,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.020; 142.0 to 145.0\u00a0ms, mean\n                      <jats:sub>diff<\/jats:sub>\n                      : \u22121.30\u00b0,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.047; 154.0 to 165.0\u00a0ms, mean\n                      <jats:sub>diff<\/jats:sub>\n                      : \u22121.05\u00b0,\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.019).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>CAI individuals exhibit higher feedforward pre\u2010activation in lateral ankle muscles, which may be insufficient against excessive ankle inversion after landing on a trapdoor during walking.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jfa2.70232","type":"journal-article","created":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T04:29:49Z","timestamp":1791865789000},"source":"Crossref","is-referenced-by-count":0,"title":["Feedforward Pre\u2010Activation of Lateral Ankle Muscles Is Insufficient Against Excessive Ankle Inversion During Perturbation in Individuals With Chronic Ankle Instability"],"prefix":"10.1002","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-8468-0970","authenticated-orcid":false,"given":"Wenqi","family":"Ran","sequence":"first","affiliation":[{"name":"College of Sports and Health Shandong Sport University  Jinan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4103-9193","authenticated-orcid":false,"given":"Qipeng","family":"Song","sequence":"additional","affiliation":[{"name":"College of Sports and Health Shandong Sport University  Jinan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-9556-5416","authenticated-orcid":false,"given":"Wei","family":"Yin","sequence":"additional","affiliation":[{"name":"China National Basketball Academy Shandong Sport University  Jinan China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,12]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.23977\/socmhm.2023.040207"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546516628870"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1249\/mss.0b013e3181de7a8a"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.4085\/1062\u20106050\u201050.2.06"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1177\/036354659702500110"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1080\/14763141.2024.2319134"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1249\/mss.0b013e3182a6a93b"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1123\/jsr.2015\u20100061"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.humov.2019.01.013"},{"key":"e_1_2_12_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/jor.20235"},{"key":"e_1_2_12_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167\u2010016\u20104015\u20103"},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mbm.2026.100206"},{"issue":"4","key":"e_1_2_12_14_1","first-page":"364","article-title":"Functional Anatomy, Pathomechanics, and Pathophysiology of Lateral Ankle Instability","volume":"37","author":"Hertel J.","year":"2002","journal-title":"Journal of Athletic Training"},{"key":"e_1_2_12_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/sms.14342"},{"key":"e_1_2_12_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ptsp.2021.02.006"},{"key":"e_1_2_12_17_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.2013.0303"},{"key":"e_1_2_12_18_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102013\u2010092626"},{"key":"e_1_2_12_19_1","doi-asserted-by":"publisher","DOI":"10.1177\/1071100715576517"},{"key":"e_1_2_12_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.humov.2019.03.015"},{"key":"e_1_2_12_21_1","doi-asserted-by":"publisher","DOI":"10.1123\/jsr.2018\u20100061"},{"key":"e_1_2_12_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/jor.1100080310"},{"key":"e_1_2_12_23_1","doi-asserted-by":"publisher","DOI":"10.1111\/sms.13445"},{"key":"e_1_2_12_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0021\u20109290(01)00222\u20106"},{"key":"e_1_2_12_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jsams.2019.11.003"},{"key":"e_1_2_12_26_1","doi-asserted-by":"publisher","DOI":"10.1186\/s40798\u2010024\u201000710\u2010y"},{"key":"e_1_2_12_27_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.pain.2010.10.020"},{"key":"e_1_2_12_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jelekin.2020.102438"},{"key":"e_1_2_12_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2016.11.037"},{"key":"e_1_2_12_30_1","doi-asserted-by":"publisher","DOI":"10.1111\/sms.12181"},{"issue":"1","key":"e_1_2_12_31_1","first-page":"80","article-title":"The Sensorimotor System, Part II: The Role of Proprioception in Motor Control and Functional Joint Stability","volume":"37","author":"Riemann B. L.","year":"2002","journal-title":"Journal of Athletic Training"},{"key":"e_1_2_12_32_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13047\u2010021\u201000476\u20106"},{"key":"e_1_2_12_33_1","doi-asserted-by":"publisher","DOI":"10.1007\/s001670000124"},{"issue":"4","key":"e_1_2_12_34_1","first-page":"381","article-title":"Factors Contributing to Chronic Ankle Instability: Kinesthesia and Joint Position Sense","volume":"37","author":"Konradsen L.","year":"2002","journal-title":"Journal of Athletic Training"},{"key":"e_1_2_12_35_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiomech.2005.09.004"},{"key":"e_1_2_12_36_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546508328102"},{"key":"e_1_2_12_37_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2024.01.018"},{"key":"e_1_2_12_38_1","doi-asserted-by":"publisher","DOI":"10.1152\/jn.01226.2006"},{"key":"e_1_2_12_39_1","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.2002.036244"},{"key":"e_1_2_12_40_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00221\u2010022\u201006406\u20107"},{"key":"e_1_2_12_41_1","doi-asserted-by":"publisher","DOI":"10.1123\/jsr.2021\u20100139"},{"key":"e_1_2_12_42_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0165\u20100270(02)00089\u20104"},{"key":"e_1_2_12_43_1","doi-asserted-by":"publisher","DOI":"10.4085\/1062\u20106050\u201049.3.71"},{"key":"e_1_2_12_44_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13643\u2010024\u201002455\u2010x"}],"container-title":["Journal of Foot and Ankle Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jfa2.70232","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/jfa2.70232","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jfa2.70232","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T04:29:51Z","timestamp":1791865791000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jfa2.70232"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,10,12]]},"references-count":43,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2026,12]]}},"alternative-id":["10.1002\/jfa2.70232"],"URL":"https:\/\/doi.org\/10.1002\/jfa2.70232","archive":["Portico"],"relation":{},"ISSN":["1757-1146","1757-1146"],"issn-type":[{"value":"1757-1146","type":"print"},{"value":"1757-1146","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,10,12]]},"article-number":"e70232"}}