{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T13:13:06Z","timestamp":1780405986683,"version":"3.54.1"},"reference-count":76,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,11,13]],"date-time":"2025-11-13T00:00:00Z","timestamp":1762992000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Physiol."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>This study investigated lower-limb biomechanical asymmetries during single-leg drop jumps (SLDJ) in elite male long and high jumpers.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Twenty athletes performed SLDJ from 30-cm and 40-cm heights using dominant and non-dominant legs. Three-dimensional kinematic and kinetic data were collected using a motion capture system and force platforms. Measured variables included joint angles, moments, peak vertical ground reaction force (Peak vGRF), loading rate, reactive strength index (RSI), and absolute symmetry index (ASI%). Data were analyzed using a two-way repeated-measures ANOVA.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The dominant leg exhibited significantly greater ankle range of motion (\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.05), hip joint moment (\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.05), ankle joint moment (\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.001), and peak vGRF (\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.001) compared to the non-dominant leg. Furthermore, knee joint moments (\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.05) and RSI (\n                      <jats:italic>p<\/jats:italic>\n                      &amp;lt; 0.001) were significantly greater at the 40 cm height than at the 30 cm height. The ASI% for the peak vGRF (30 cm: 10.74% \u00b1 9.24%, 40 cm: 14.87% \u00b1 13.75%) and the loading rate (30 cm: 15.47% \u00b1 14.81%, 40 cm: 20.27% \u00b1 9.80%) exceeded 10%, which indicated asymmetry between the two legs during the single-leg drop jump impact.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>These findings suggest a trend wherein inter-limb asymmetry during the single-leg drop jump appeared to become more pronounced with increasing drop height. This observation may offer valuable insight for sport-specific performance assessment and targeted injury prevention.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fphys.2025.1702161","type":"journal-article","created":{"date-parts":[[2025,11,13]],"date-time":"2025-11-13T14:21:26Z","timestamp":1763043686000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Lower-limb asymmetries in jump athletes during single-leg drop jump"],"prefix":"10.3389","volume":"16","author":[{"given":"Yunman","family":"Li","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinxin","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuliang","family":"Sun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2025,11,13]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"387","DOI":"10.1589\/jpts.30.387","article-title":"Limb-dominance and gender differences in the ground reaction force during single-leg lateral jump-landings","volume":"30","author":"Aizawa","year":"2018","journal-title":"J. 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