Effects of in-season low-volume high-intensity plyometric training on explosive actions and endurance of young soccer players

Rodrigo Ramírez-Campillo, César Meylan, Cristian Álvarez, Carlos Henríquez-Olguín, Cristian Martínez, Rodrigo Cañas-Jamett, David C. Andrade, Mikel Izquierdo

Research output: Contribution to journalArticlepeer-review

83 Citations (Scopus)

Abstract

Integrating specific training methods to improve explosive actions and endurance in youth soccer is an essential part of players' development. This study investigated the efficiency of shortterm vertical plyometric training program within soccer practice to improve both explosive actions and endurance in young soccer players. Seventy-six players were recruited and assigned either to a training group (TG; n = 38; 13.2 ± 1.8 years) or a control group (CG; n = 38; 13.2 ± 1.8 years) group. All players trained twice per week, but the TG followed a 7-week plyometric program implemented within soccer practice, whereas the CG followed regular practice. Twenty-meter sprint time (20-m), Illinois agility test time, countermovement jump (CMJ) height, 20- (RSI20) and 40- (RSI40) cm drop jump reactive strength index, multiple 5 bounds distance (MB5), maximal kicking test for distance (MKD), and 2.4-km time trial were measured before and after the 7-week period. Plyometric training induced significant (p ≤ 0.05) and small to moderate standardized effect (SE) improvement in the CMJ (4.3%; SE = 0.20), RSI20 (22%; SE = 0.57), RSI40 (16%; SE = 0.37), MB5 (4.1%; SE = 0.28), Illinois agility test time (23.5%, SE = 20.26), MKD (14%; SE = 0.53), 2.4-km time trial (21.9%; SE = 20.27) performances but had a trivial and nonsignificant effect on 20-m sprint time (20.4%; SE = 20.03). No significant improvements were found in the CG. An integrated vertical plyometric program within the regular soccer practice can substitute soccer drills to improve most explosive actions and endurance, but horizontal exercises should also be included to enhance sprinting performance.

Original languageEnglish
Pages (from-to)1335-1342
Number of pages8
JournalJournal of Strength and Conditioning Research
Volume28
Issue number5
DOIs
Publication statusPublished - 2014

Keywords

  • Agility
  • Explosive strength
  • Stretch-shortening cycle
  • Vertical jump

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Medicine(all)

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