{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:24:53Z","timestamp":1787016293783,"version":"build-2736575974"},"reference-count":39,"publisher":"Human Kinetics","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,1,1]]},"abstract":"<jats:p>\n                    <jats:italic>\n                      <jats:bold>Purpose<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    To examine the effects of a neuromuscular training program combining plyometric exercises with acceleration, deceleration, and change-of-direction drills\u00a0conducted on sand or hard surfaces on the fitness qualities of young male tennis players.\n                    <jats:italic>\n                      <jats:bold>Methods<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Thirty-one young male players were allocated to a training group performing 12 training sessions on sand or hard surfaces, during a 6-week period. Tests included linear sprint (10-m acceleration with 5-m split times), change of direction (modified 5-0-5 test), vertical jumps (countermovement jump and the 10\/5 repeated-jump test), isometric hip abduction and adduction strength, and dynamic balance (Y-balance test). Perceived training loads and muscle soreness were assessed during the intervention.\n                    <jats:italic>\n                      <jats:bold>Results<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Both training strategies were similarly effective in improving the analyzed fitness components. Group \u00d7 time interaction effects were noticed, with countermovement jump (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.032), repeated-jump test (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.029), and reactive strength index (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.008) favoring hard\u00a0surfaces and 5-m sprint (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.009), dynamic balance (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009&lt;\u2009.05), adduction strength (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009&lt;\u2009.05), and abduction strength (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009&lt;\u2009.001) indices favoring sand. Furthermore, the sand group promoted greater perceived training loads and muscle soreness (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009&lt;\u2009.05) than the hard group across the intervention period.\n                    <jats:italic>\n                      <jats:bold>Conclusion<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Neuromuscular training strategies characterized by a relatively low volume (\u223c35\u00a0min), conducted on sand or hard surfaces, promoted similar improvements in the fitness qualities of young tennis players, with selected surface-interaction effects. Training on sand can cause transiently higher training loads and persistently higher muscle soreness, suggesting the need for an adequate familiarization period.\n                  <\/jats:p>","DOI":"10.1123\/ijspp.2023-0162","type":"journal-article","created":{"date-parts":[[2023,11,18]],"date-time":"2023-11-18T10:36:22Z","timestamp":1700303782000},"page":"71-79","source":"Crossref","is-referenced-by-count":12,"title":["The Effects of Neuromuscular Training on Sand Versus Hard Surfaces on Physical Fitness in Young Male Tennis Players"],"prefix":"10.1123","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5284-303X","authenticated-orcid":true,"given":"Jaime","family":"Fernandez-Fernandez","sequence":"first","affiliation":[{"name":"Department of Physical Education and Sport Sciences, Universidad de Le\u00f3n, Le\u00f3n, Spain"},{"name":"AMRED, Human Movement and Sports Performance Analysis, Universidad de Le\u00f3n, Le\u00f3n, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5336-3652","authenticated-orcid":true,"given":"F\u00e1bio Yuzo","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Maia, Maia, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8477-127X","authenticated-orcid":true,"given":"Daniel","family":"Boullosa","sequence":"additional","affiliation":[{"name":"Department of Physical Education and Sport Sciences, Universidad de Le\u00f3n, Le\u00f3n, Spain"},{"name":"AMRED, Human Movement and Sports Performance Analysis, Universidad de Le\u00f3n, Le\u00f3n, Spain"}],"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\/0000-0002-6261-2550","authenticated-orcid":true,"given":"Alba","family":"Herrero-Molleda","sequence":"additional","affiliation":[{"name":"Department of Physical Education and Sport Sciences, Universidad de Le\u00f3n, Le\u00f3n, Spain"},{"name":"AMRED, Human Movement and Sports Performance Analysis, Universidad de Le\u00f3n, Le\u00f3n, 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 im Breisgau, 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":"MEDAC, Professional Institute of Education, Malaga, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"issue":"4","key":"r1","series-title":"Strength Cond J","first-page":"15","article-title":"A review of the activity profile and physiological demands of tennis match play","volume":"31","author":"Fernandez-Fernandez J","year":"2009","unstructured":"Fernandez-Fernandez J, Sanz-Rivas D, Mendez-Villanueva A. 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