Improving Sprint Performance in Soccer: Effectiveness of Jump Squat and Olympic Push Press Exercises.
Training at the optimum power load (OPL) is an effective way to improve neuromuscular abilities of highly trained athletes. The purpose of this study was to test the effects of training using the jump squat (JS) or Olympic push-press (OPP) exercises at the OPL during a short-term preseason on speed-power related abilities in high-level under-20 soccer players. The players were divided into two training groups: JS group (JSG) and OPP group (OPPG). Both groups undertook 12 power-oriented sessions, using solely JS or OPP exercises. Pre- and post-6 weeks of training, athletes performed squat jump (SJ), countermovement jump (CMJ), sprinting speed (5, 10, 20 and 30 m), change of direction (COD) and speed tests. To calculate the transfer effect coefficient (TEC) between JS and MPP OPP and the speed in 5, 10, 20, and 30 m, the ratio between the result gain (effect size [ES]) in the untrained exercise and result gain in the trained exercise was calculated. Magnitude based inference and ES were used to test the meaningful effects. The TEC between JS and VEL 5, 10, 20, and 30 m ranged from 0.77 to 1.29, while the only TEC which could be calculated between OPP and VEL 5 was rather low (0.2). In addition, the training effects of JS on jumping and speed related abilities were superior (ES ranging from small to large) to those caused by OPP (trivial ES). To conclude, the JS exercise is superior to the OPP for improving speed-power abilities in elite young soccer players.
NAR-Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
Irineu
I
Loturco
NAR-Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
Lucas Adriano
LA
Pereira
NAR-Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
Ronaldo
R
Kobal
Palmeiras Sport Society, São Paulo, SP, Brazil.
Thiago
T
Maldonado
Palmeiras Sport Society, São Paulo, SP, Brazil.
Alessandro Fromer
AF
Piazzi
Palmeiras Sport Society, São Paulo, SP, Brazil.
Altamiro
A
Bottino
NAR-Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
Katia
K
Kitamura
NAR-Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
Cesar Cavinato
CC
Cal Abad
University of Campinas, Campinas, SP, Brazil.
Miguel
M
de Arruda
NAR-Nucleus of High Performance in Sport, São Paulo, SP, Brazil.|State University of Londrina, Londrina, PR, Brazil.
Fabio Yuzo
FY
Nakamura
D000293:Adolescent; D054874:Athletic Performance / Q000502:physiology*; D003163:Competitive Behavior; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D059385:Plyometric Exercise / Q000379:methods*; D055070:Resistance Training; D012420:Running / Q000502:physiology*; D012916:Soccer / Q000502:physiology*