{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,30]],"date-time":"2025-12-30T08:44:22Z","timestamp":1767084262441,"version":"build-2065373602"},"reference-count":63,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T00:00:00Z","timestamp":1711584000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objective: The accurate prediction of strength development relies on identifying the most appropriate measurement methods. This study compared diverse strength measurement techniques to assess their effectiveness in predicting strength development. Participants were taekwondo athletes competing at the red\u2013black belt level or above. Methods: Technical striking forces (palding, dollyeo chagi, dwit chagi, and yeop chagi) were measured using a Herman Digital Trainer fixed to a striking stand. Quadriceps and hamstring strength were assessed with a Lafayette force measuring device. Explosive leg strength was evaluated through a standing long jump test, normalized for leg length. The Pearson correlation coefficient was used to examine relationships between measurement methods. Results: The standing long jump test showed no significant correlation with other strength assessments. A moderate positive correlation was found between Herman digital trainer measurements and Lafayette digital hand-held dynamometer results. A high positive correlation (r = 0.736, p &lt; 0.001) emerged between hamstring strength and palding chagi technical strike force results. Technical strike kicks showed a significant positive correlation with each other and, also, a right foot\u2013left foot correlation was observed. Conclusions: It was concluded that the standing long jump test, which was shown as one of the explosive leg strength measurement methods in field studies as an alternative to laboratory tests, did not correlate with other strength tests; therefore, this test is weak and insufficient to predict strength skills in taekwondo. In addition, this study showed that the hamstring muscle was more predictive in the measurement of technical strength. In future studies, it might be more useful to measure hamstring muscle strength or technical kick strength instead of a standing long jump field test.<\/jats:p>","DOI":"10.3390\/medicina60040550","type":"journal-article","created":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T12:52:12Z","timestamp":1711630332000},"page":"550","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A Comparison of Different Strength Measurement in Taekwondo: Herman Trainer, Manual Tester, and Standing Long Jump"],"prefix":"10.3390","volume":"60","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2021-5351","authenticated-orcid":false,"given":"Ay\u015fe Hazal","family":"Boyanm\u0131\u015f","sequence":"first","affiliation":[{"name":"Faculty of Sports Sciences, Mersin University, Mersin 33110, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2382-2205","authenticated-orcid":false,"given":"\u0130nci","family":"Kesilmi\u015f","sequence":"additional","affiliation":[{"name":"Faculty of Sports Sciences, Mersin University, Mersin 33110, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manolya","family":"Ak\u0131n","sequence":"additional","affiliation":[{"name":"Faculty of Sports Sciences, Mersin University, Mersin 33110, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Buse","family":"Yilmaz","sequence":"additional","affiliation":[{"name":"Faculty of Sports Sciences, Mersin University, Mersin 33110, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0095-6622","authenticated-orcid":false,"given":"A\u015fina","family":"Uslular","sequence":"additional","affiliation":[{"name":"Faculty of Sports Sciences, K\u00fctahya Dumlup\u0131nar University, K\u00fctahya 43100, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yesim","family":"Karac Ocal","sequence":"additional","affiliation":[{"name":"Faculty of Sports Sciences, Yozgat Bozok University, Yozgat 66200, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6021-2991","authenticated-orcid":false,"given":"Hulya","family":"Andre","sequence":"additional","affiliation":[{"name":"Faculty of Sports Sciences, Yozgat Bozok University, Yozgat 66200, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1016\/j.ptsp.2010.07.001","article-title":"Does Taekwondo training improve physical fitness?","volume":"12","author":"Fong","year":"2011","journal-title":"Phys. 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