{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T06:13:41Z","timestamp":1779257621960,"version":"3.51.4"},"reference-count":33,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T00:00:00Z","timestamp":1779235200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100007839","name":"Zhongnan University of Economics and Law","doi-asserted-by":"publisher","award":["YB202343"],"award-info":[{"award-number":["YB202343"]}],"id":[{"id":"10.13039\/100007839","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Bioeng. Biotechnol."],"abstract":"<jats:p>Rapid change-of-direction movements are essential in basketball and other multidirectional sports and impose substantial mechanical demands on the ankle. However, how cutting direction and athletic level jointly influence ankle-centered biomechanics across the stance phase remains insufficiently characterized. This study aimed to quantify the direction- and athletic-level-associated differences in lower-limb kinematics and kinetics during 45\u00b0 cutting and to determine whether between-group effects are expressed primarily in internal joint mechanics rather than external ground reaction forces. Twenty-four healthy males (12 professional basketball athletes and 12 collegiate students) performed 45\u00b0 lateral cutting (LC) and crossover cutting (CC) at a controlled approach speed (4.0 \u00b1 0.2\u00a0m\/s). Three-dimensional kinematics (250\u00a0Hz) and ground reaction forces (1,000\u00a0Hz) were synchronously recorded using motion capture and a force platform. Discrete outcomes were compared using independent-samples t-tests, and time-continuous waveforms were assessed using one-dimensional statistical parametric mapping with a mixed-design ANOVA (group \u00d7 task). Cutting direction produced significant stance-phase effects across large portions of stance for ground reaction forces, ankle joint forces, and ankle joint moments, whereas ground reaction force waveforms showed no group \u00d7 task interactions. Athletic-level differences were task-specific and time-localized. Professional athletes exhibited smaller non-sagittal ankle range of motion (adduction\/abduction during LC; internal\/external rotation during CC) and greater ankle plantarflexion moments. Significant group \u00d7 task interactions were observed in frontal- and transverse-plane ankle kinematics, and the ankle adduction\/abduction moment differed between groups only during CC within restricted stance intervals. These findings indicate that 45\u00b0 cutting biomechanics are predominantly direction-dependent, whereas athletic level influences phase-specific modulation of ankle motion and joint moments. Athletic-level effects were primarily expressed in internal joint mechanics rather than external ground reaction forces. This information may support more targeted biomechanical assessment and training strategies for multidirectional sports.<\/jats:p>","DOI":"10.3389\/fbioe.2026.1751828","type":"journal-article","created":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T05:49:07Z","timestamp":1779256147000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Direction-led temporal control and expertise-based load redistribution in 45\u00b0 cutting: an SPM-based analysis of ankle mechanics"],"prefix":"10.3389","volume":"14","author":[{"given":"Xiao-shan","family":"Lei","sequence":"first","affiliation":[{"name":"Country College of P.E. and Sports, Beijing Normal University","place":["Beijing, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiao-long","family":"Liao","sequence":"additional","affiliation":[{"name":"Country College of P.E. and Sports, Beijing Normal University","place":["Beijing, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yilin","family":"Wang","sequence":"additional","affiliation":[{"name":"Country College of P.E. and Sports, Beijing Normal University","place":["Beijing, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yun-chao","family":"Ma","sequence":"additional","affiliation":[{"name":"Country College of P.E. and Sports, Beijing Normal University","place":["Beijing, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hao","family":"Lei","sequence":"additional","affiliation":[{"name":"Department of Physical Education, Zhongnan University of Economics and Law","place":["Wuhan, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2026,5,20]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"265","DOI":"10.1016\/j.gaitpost.2024.07.004","article-title":"Task-specific differences in lower limb biomechanics during dynamic movements in individuals with chronic ankle instability compared with controls","volume":"113","author":"Altun","year":"2024","journal-title":"Gait and Posture"},{"key":"B40","doi-asserted-by":"crossref","first-page":"1168","DOI":"10.1097\/00005768-200107000-00014","article-title":"External loading of the knee joint during running and cutting maneuvers","volume":"33","author":"Besier","year":"2001","journal-title":"Med. 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