title: Training strategy of explosive strength in young female volleyball players.
abstract: OBJECTIVE
  The aim of this study was to examine the effect of an 8-week combined jump and ball throwing training program in the performance of upper and lower extremities among young female volleyball players of the high school.
  
  
  METHODS
  A total of 20 young female volleyball players playing at Scholar Sport in High School at the district level were divided in two groups: the experimental group (n=10; 14.0±0.0 years; 1.6±0.1 m; 52.0±7.0 kg and 20.7±2.4% body mass) and the control group (n=10; 13.8±0.4 years, 1.6±0.1 m; 53.5±4.7 kg and 20.3±1.7% body mass). The experimental group received additional plyometric and ball throwing exercises besides their normal volleyball practice. The control group underwent only their regular session of training.
  
  
  RESULTS
  Strength performance in the experimental group significantly improved (medicine ball and volleyball ball throwing: P=0.00; and counter movement jump: P=0.05), with the improvement ranging from 5.3% to 20.1%. No significant changes in strength performance were observed in the control group (P>0.05).
  
  
  CONCLUSIONS
  The 8-week combined jump and ball throwing training can significantly improve muscular performance in young female volleyball players. These findings may be useful for all physical education teachers and volleyball coaches.
authors.affiliation: School of Education, Polytechnic Institute of Setubal, Portugal; Research Centre for Sport, Health and Human Development, Vila Real, Portugal. Electronic address: ana.pereira@ese.ips.pt.
authors.forename: Ana
authors.initials: A
authors.lastname: Pereira
authors.affiliation: Research Centre for Sport, Health and Human Development, Vila Real, Portugal; Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal.
authors.forename: Aldo M
authors.initials: AM
authors.lastname: Costa
authors.affiliation: Department of Sport Sciences, Exercise and Health, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
authors.forename: Patricia
authors.initials: P
authors.lastname: Santos
authors.affiliation: School of Education, Polytechnic Institute of Setubal, Portugal.
authors.forename: Teresa
authors.initials: T
authors.lastname: Figueiredo
authors.affiliation: Research Centre for Sport, Health and Human Development, Vila Real, Portugal; Department of Sport Sciences, Exercise and Health, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
authors.forename: Paulo Vicente
authors.initials: PV
authors.lastname: João
mesh_terms: D000293:Adolescent; D054874:Athletic Performance / Q000502:physiology*; D005260:Female; D006801:Humans; D035002:Lower Extremity / Q000502:physiology; D053580:Muscle Strength; D010806:Physical Education and Training / Q000379:methods; D055070:Resistance Training / Q000379:methods*; D054798:Volleyball / Q000502:physiology*
keywords: Female; High school; Lower extremity; Upper extremity; Velocity training