{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T18:24:23Z","timestamp":1792866263746,"version":"4.5.0"},"reference-count":14,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2019,2,17]],"date-time":"2019-02-17T00:00:00Z","timestamp":1550361600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/501100003725","name":"national research foundation of korea","doi-asserted-by":"publisher","award":["NRF-2014M3C1B1033319"],"award-info":[{"award-number":["NRF-2014M3C1B1033319"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Proc Inst Mech Eng H"],"published-print":{"date-parts":[[2019,4]]},"abstract":"<jats:p>The push-off mechanism to generate forward movement in skating has been analyzed by using high-speed cameras and specially designed skates because it is closely related to skater performance. However, using high-speed cameras for such an investigation, it is hard to measure the three-dimensional push-off force, and a skate with strain gauges is difficult to implement in the real competitions. In this study, we provided a new method to evaluate the three-dimensional push-off angle in short-track speed skating based on motion analysis using a wearable motion analysis system with inertial measurement unit sensors to avoid using a special skate or specific equipment insert into the skate for measurement of push-off force. The estimated push-off angle based on motion analysis data was very close to that based on push-off force with a small root mean square difference less than 6% when using the lateral marker in the left leg and the medial marker in the right leg regardless of skating phase. These results indicated that the push-off angle estimation based on motion analysis data using a wearable motion capture system of inertial measurement unit sensors could be acceptable for realistic situations. The proposed method was shown to be feasible during short-track speed skating. This study is meaningful because it can provide a more acceptable push-off angle estimation in real competitive situations.<\/jats:p>","DOI":"10.1177\/0954411919831309","type":"journal-article","created":{"date-parts":[[2019,2,17]],"date-time":"2019-02-17T22:56:08Z","timestamp":1550444168000},"page":"476-480","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":14,"title":["New method to evaluate three-dimensional push-off angle during short-track speed skating using wearable inertial measurement unit sensors"],"prefix":"10.1177","volume":"233","author":[{"given":"Kyungsoo","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Applied Mathematics, Kyung Hee University, Yongin, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun Seok","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Kyung Hee University, Yongin, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tserenchimed","family":"Purevsuren","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Kyung Hee University, Yongin, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Batbayar","family":"Khuyagbaatar","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Kyung Hee University, Yongin, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"SuKyoung","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Computer Science, Yonsei University, Seoul, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9127-4813","authenticated-orcid":false,"given":"Yoon Hyuk","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Kyung Hee University, Yongin, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2019,2,17]]},"reference":[{"key":"bibr1-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1123\/ijsb.7.4.344"},{"key":"bibr2-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1123\/ijsb.2.3.175"},{"key":"bibr3-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1055\/s-2008-1025688"},{"key":"bibr4-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1123\/ijsb.3.1.69"},{"key":"bibr5-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1123\/ijsb.5.2.119"},{"key":"bibr6-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(85)90002-8"},{"key":"bibr7-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1123\/ijsb.3.2.103"},{"key":"bibr8-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-014-0298-z"},{"key":"bibr9-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1007\/s12283-009-0033-4"},{"key":"bibr10-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1007\/s12283-016-0208-8"},{"key":"bibr11-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1016\/j.gaitpost.2015.04.007"},{"key":"bibr12-0954411919831309","doi-asserted-by":"publisher","DOI":"10.1177\/0954411917719743"},{"key":"bibr13-0954411919831309","unstructured":"Roetenberg D, Luinge H, Slycke P. 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