{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T15:57:04Z","timestamp":1791302224981,"version":"4.1.0"},"reference-count":38,"publisher":"Human Kinetics","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,9,1]]},"abstract":"<jats:p><jats:italic><jats:bold>Purpose<\/jats:bold>:<\/jats:italic> To examine the effects of sprint and change-of-direction (CoD) training, with and without the racket, on performance-related qualities of young tennis players. <jats:italic><jats:bold>Methods<\/jats:bold>:<\/jats:italic> Thirty-one young male players age 16.5 (0.3)\u00a0years (body height 180.6 [4.6]\u00a0cm; mass 71.5 [6.3]\u00a0kg) were randomly allocated to a specific sprint and CoD training program using a tennis racket versus the same training without using the racket during an 8-week in-season training phase. Pretraining and posttraining included linear sprint (10\u00a0m with 5-m split times), CoD speed (5-0-5 CoD test, pro-agility test), and muscle power (bilateral and unilateral countermovement jumps, and the 10\/5 repeated-jump test). <jats:italic><jats:bold>Results<\/jats:bold>:<\/jats:italic> Results showed a significant main effect of time for linear sprint speed (10-m: <jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001), CoD (<jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001), CoD deficit (<jats:italic>P<\/jats:italic>\u2009=\u2009.003), pro-agility (<jats:italic>P<\/jats:italic>\u2009=\u2009.044), and all analyzed jump measures (<jats:italic>P<\/jats:italic> values ranging from &lt;.001 to .006). Selected significant group-by-time interactions were found, with 5-m (<jats:italic>P<\/jats:italic>\u2009=\u2009.008)\u00a0and 10-m sprints (<jats:italic>P<\/jats:italic>\u2009=\u2009.021), CoD speed (<jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001), and\u00a0pro-agility test (<jats:italic>P<\/jats:italic>\u2009=\u2009.018), as well as countermovement jumps (<jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001) and repeated-jump-test jump height (<jats:italic>P<\/jats:italic>\u2009=\u2009.003), favoring the no-racket group. <jats:italic><jats:bold>Conclusion<\/jats:bold>:<\/jats:italic> Although both training strategies have been shown to be effective in improving the physical fitness components analyzed, the use of specific sprint training without additional equipment (ie,\u00a0racket) seems to be the most beneficial method to improve baseline capacities in young tennis players.<\/jats:p>","DOI":"10.1123\/ijspp.2024-0426","type":"journal-article","created":{"date-parts":[[2025,7,10]],"date-time":"2025-07-10T19:32:03Z","timestamp":1752175923000},"page":"1184-1190","source":"Crossref","is-referenced-by-count":3,"title":["Effects of Sprint and Change-of-Direction Training With or Without the Racket in Young Tennis Players"],"prefix":"10.1123","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5284-303X","authenticated-orcid":true,"given":"Jaime","family":"Fernandez-Fernandez","sequence":"first","affiliation":[{"name":"Department of Physical Activity and Sport Sciences, Universidad de Le\u00f3n, Le\u00f3n, Spain"},{"name":"AMREDyS, Analysis of Human Movement, Sports Performance and Helath, Universidad de Le\u00f3n, Le\u00f3n, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2059-2846","authenticated-orcid":true,"given":"Ernest","family":"Baiget Vidal","sequence":"additional","affiliation":[{"name":"National Institute of Physical Education of Catalonia (INEFC), University of Barcelona, Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5336-3652","authenticated-orcid":true,"given":"Fabio Yuzo","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Research Center in Sports Sciences, Health Sciences and Human Development, University of Maia, Maia, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6396-4905","authenticated-orcid":true,"given":"Francisco Javier","family":"Santos-Rosa","sequence":"additional","affiliation":[{"name":"Faculty of Sport, Pablo de Olavide University, Seville, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7095-813X","authenticated-orcid":true,"given":"Urs","family":"Granacher","sequence":"additional","affiliation":[{"name":"Department of Sport and Sport Science, Exercise and Human Movement Science, University of Freiburg, Freiburg, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2577-4198","authenticated-orcid":true,"given":"David","family":"Sanz-Rivas","sequence":"additional","affiliation":[{"name":"Faculty of Health Sciences, Universidad Tecnol\u00f3gica Atl\u00e1ntico-Mediterr\u00e1neo (UTAMED), M\u00e1laga, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"issue":"4","key":"r1","series-title":"Sport Med","doi-asserted-by":"publisher","first-page":"807","DOI":"10.1007\/s40279-022-01807-8","article-title":"Physical demands of tennis across the different court surfaces, performance levels and sexes: a systematic review with meta-analysis","volume":"53","author":"Pluim BM","year":"2023","unstructured":"Pluim BM, Jansen MGT, Williamson S, et\u00a0al. 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