{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T11:54:53Z","timestamp":1775908493937,"version":"3.50.1"},"reference-count":62,"publisher":"Human Kinetics","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,9,1]]},"abstract":"<jats:p>\n                    <jats:italic>\n                      <jats:bold>Purpose<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    To compare the kinematic profile of 2 underwater pullout breaststroke techniques.\n                    <jats:italic>\n                      <jats:bold>Methods<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Sixteen swimmers (9 men, 20.67 [2.71]\u00a0y old; 7 women, 18.86 [0.83]\u00a0y old) performed 3\u2009\u00d7\u200925-m breaststroke using 2 pullout breaststroke techniques: Fly-Kick first and Combined. A speedometer was used to assess the peak and the mean velocity during the glide, propulsion, and recovery phases of both techniques, as well as for the total underwater sequence. The underwater distance was retrieved from video footage and was considered for each pullout technique. The range of motion of the knee during the fly-kick was also retrieved, and the time to complete the 25\u00a0m was considered the performance outcome, accompanied by the mean velocity, stroke rate, stroke length, and stroke index.\n                    <jats:italic>\n                      <jats:bold>Results<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Velocity\u2013time series showed different profiles between pullout techniques (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009\u2264\u2009.05) mostly in the glide and propulsion phases for males and females, respectively. The mean velocity of 25\u00a0m was shown to be greater in females when using the Fly-Kick first technique (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.05,\n                    <jats:italic>d<\/jats:italic>\n                    \u2009=\u20090.36). Greater values in total underwater distance and knee range of motion were also observed for this technique in both cohorts.\u00a0\n                    <jats:italic>\n                      <jats:bold>Conclusions<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Female swimmers presented a higher performance when using the Fly-Kick first technique. Different kinematic profiles arise when swimmers use different underwater pullout techniques where the Fly-Kick first may allow them to reach higher kinematical standard.\n                  <\/jats:p>","DOI":"10.1123\/ijspp.2024-0047","type":"journal-article","created":{"date-parts":[[2024,6,19]],"date-time":"2024-06-19T14:50:07Z","timestamp":1718808607000},"page":"860-866","source":"Crossref","is-referenced-by-count":1,"title":["Understanding the Kinematic Profile of 2 Underwater Pullout Breaststroke Techniques"],"prefix":"10.1123","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4592-8091","authenticated-orcid":true,"given":"Catarina C.","family":"Santos","sequence":"first","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal"},{"name":"Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), Vila Real, Portugal"},{"name":"Department of Sport Sciences, Higher Institute of Educational Sciences of the Douro (ISCE-Douro), Penafiel, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2070-2064","authenticated-orcid":true,"given":"Francisco A.","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8313-8181","authenticated-orcid":true,"given":"Susana","family":"Soares","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal"},{"name":"Porto Biomechanics Laboratory (LABIOMEP-UP), University of Porto, Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5811-0443","authenticated-orcid":true,"given":"Ricardo J.","family":"Fernandes","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal"},{"name":"Porto Biomechanics Laboratory (LABIOMEP-UP), University of Porto, Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4109-2939","authenticated-orcid":true,"given":"Jo\u00e3o Paulo","family":"Vilas-Boas","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal"},{"name":"Porto Biomechanics Laboratory (LABIOMEP-UP), University of Porto, Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5502-1202","authenticated-orcid":true,"given":"M\u00e1rio J.","family":"Costa","sequence":"additional","affiliation":[{"name":"Center of Research, Education, Innovation and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, Porto, Portugal"},{"name":"Porto Biomechanics Laboratory (LABIOMEP-UP), University of Porto, Porto, Portugal"}]}],"member":"100","reference":[{"issue":"9","key":"r1","series-title":"Sports Med","doi-asserted-by":"publisher","first-page":"539","DOI":"10.2165\/00007256-200232090-00001","article-title":"Performance evaluation of swimmers: scientific tools","volume":"32","author":"Smith DJ","year":"2022","unstructured":"Smith DJ, Norris SR, Hogg, JM. 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