{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,18]],"date-time":"2025-12-18T09:22:36Z","timestamp":1766049756799,"version":"build-2065373602"},"reference-count":43,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2021,8,29]],"date-time":"2021-08-29T00:00:00Z","timestamp":1630195200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Effects of customized functional insoles on the lower limb biomechanics of short track skaters","award":["D20202502"],"award-info":[{"award-number":["D20202502"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>The difference of drop heights will affect the biomechanics of lower extremities during drop-jump (DJ) landing. Therefore, this study explored the effects of drop heights and training volumes on interjoint coordination and the side-to-side asymmetry of the lower extremities during landing. Twenty males were randomly assigned to perform 200 DJs (DJs200) from 30, 40 and 50 cm (drop-jump height (DJH) 30, DJH40 and DJH50) platform. One-way ANOVA repeated measure, using MATLAB software, was used to compare the differences of interjoint coordination, side-to-side asymmetry of ground contact time (GCT) and the maximum impact in vertical ground-reaction forces peak (I-vGRFpeak) in the 1st, 50th, 100th, 150th and 200th jumps (DJ1, DJs50, DJs100, DJs150 and DJs200). To examine whether significant differences exist, the least significant difference\u2019s (LSD) method was used for post-hoc comparison. The mean absolute relative phase (MARP) and deviation phase (DP) of hip\u2013knee were lower than DJH50 at DJH30 and DJH40, while side-to-side asymmetry of GCT and I-vGRFpeak were greater than DJH30 and DJH40 at DJH50 within DJs200 (all p &lt;0.05). However, there was no significant difference in MARP and DP of hip\u2013ankle and knee\u2013ankle. Therefore, training at DJH30 may effectively improve jumping performance and reduce musculoskeletal injury risk.<\/jats:p>","DOI":"10.3390\/sym13091590","type":"journal-article","created":{"date-parts":[[2021,8,31]],"date-time":"2021-08-31T22:58:15Z","timestamp":1630450695000},"page":"1590","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Different Drop Heights in Bilateral Asymmetry and Interjoint Coordination during Repetitive Drop-Jumps"],"prefix":"10.3390","volume":"13","author":[{"given":"Ke-Ke","family":"Zhang","sequence":"first","affiliation":[{"name":"Graduate Institute, Jilin Sport University, Changchun 130022, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2914-6751","authenticated-orcid":false,"given":"Yi-Ming","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Physical Education, Hubei Normal University, Huangshi 435002, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4905-3547","authenticated-orcid":false,"given":"Yu-Ge","family":"Li","sequence":"additional","affiliation":[{"name":"Graduate Institute, Jilin Sport University, Changchun 130022, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shun","family":"Yao","sequence":"additional","affiliation":[{"name":"Graduate Institute, Jilin Sport University, Changchun 130022, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu","family":"Su","sequence":"additional","affiliation":[{"name":"Graduate Institute, Jilin Sport University, Changchun 130022, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6234-3768","authenticated-orcid":false,"given":"I-Lin","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Physical Education, Hubei Normal University, Huangshi 435002, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,29]]},"reference":[{"key":"ref_1","first-page":"159","article-title":"Effects of pylometric training on jumping performance in junior basketball players","volume":"41","author":"Matavulj","year":"2001","journal-title":"J. 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