title: Effects of volume-based overload plyometric training on maximal-intensity exercise adaptations in young basketball players.
abstract: BACKGROUND
  The aim of the present study was to compare maximal-intensity exercise adaptations in young basketball players (who were strong individuals at baseline) participating in regular basketball training versus regular plus a volume-based plyometric training program in the pre-season period.
  
  
  METHODS
  Young basketball players were recruited and assigned either to a plyometric with regular basketball training group (experimental group [EG]; N.=8), or a basketball training only group (control group [CG]; N.=8). The athletes in EG performed periodized (i.e., from 117 to 183 jumps per session) plyometric training for eight weeks. Before and after the intervention, players were assessed in vertical and broad jump, change of direction, maximal strength and a 60-meter sprint test.
  
  
  RESULTS
  No significant improvements were found in the CG, while the EG improved vertical jump (effect size [ES] 2.8), broad jump (ES=2.4), agility T test (ES=2.2), Illinois agility test (ES=1.4), maximal strength (ES=1.8), and 60-m sprint (ES=1.6) (P<0.05) after intervention, and the improvements were greater compared to the CG (P<0.05).
  
  
  CONCLUSIONS
  Plyometric training in addition to regular basketball practice can lead to meaningful improvements in maximal-intensity exercise adaptations among young basketball players during the pre-season.
authors.affiliation: Department of Physical Education and Sport Sciences, Payame Noor University, Teheran, Iran.
authors.forename: Abbas
authors.initials: A
authors.lastname: Asadi
authors.affiliation: Department of Physical Activity Sciences, Research Nucleus in Health, Physical Activity and Sport, University of Los Lagos, Osorno, Chile.|Laboratory of Exercise Sciences, MEDS Clinic, Santiago, Chile.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Ramirez-Campillo
authors.affiliation: Canadian Sport Institute Pacific, Vancouver, British Columbia, Canada.|Canadian Soccer Association, Ottawa, Canada.
authors.forename: Cesar
authors.initials: C
authors.lastname: Meylan
authors.affiliation: College of Healthcare Sciences, James Cook University, Queensland, Australia.|Department of Medicine and Aging Sciences, &quot;G. D'Annunzio&quot; University of Chieti-Pescara, Chieti, Italy.
authors.forename: Fabio Y
authors.initials: FY
authors.lastname: Nakamura
authors.affiliation: Laboratory of Physiology, Department of Biological Sciences, Faculty of Biological Sciences, Universidad Andres Bello, Viña del Mar, Chile.|Laboratory of Exercise Sciences, Movement Solutions, Viña del Mar, Chile.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Cañas-Jamett
authors.affiliation: GICAEDS Group, Faculty of Physical Culture, Sport and Recreation, University of Santo Tomás, Bogotá, Colombia - mikel.izquierdo@gmail.com.|Department of Health Sciences, Public University of Navarra, Navarra, Spain.
authors.forename: Mikel
authors.initials: M
authors.lastname: Izquierdo
mesh_terms: D000222:Adaptation, Physiological; D000293:Adolescent; D054874:Athletic Performance / Q000502:physiology; D001490:Basketball / Q000502:physiology*; D016022:Case-Control Studies; D005080:Exercise Test / Q000379:methods*; D006801:Humans; D008297:Male; D053580:Muscle Strength / Q000502:physiology; D059385:Plyometric Exercise / Q000379:methods*; D055815:Young Adult