Journal ArticleDOI
Transference effect of vertical and horizontal plyometrics on sprint performance of high-level U-20 soccer players
Irineu Loturco,Lucas A. Pereira,Ronaldo Kobal,Vinicius Zanetti,Katia Kitamura,Cesar Cavinato Cal Abad,Fábio Yuzo Nakamura +6 more
Reads0
Chats0
TLDR
The results presented herein indicate that the plyometric training-axis is decisive in determining neuromechanical training responses in high-level soccer players.Abstract:
The aim of this study was to investigate the effects of adding vertical/horizontal plyometrics to the soccer training routine on jumping and sprinting performance in U-20 soccer players. The vertical jumping group (VJG) performed countermovement jumps (CMJ), while the horizontal jumping group (HJG) executed horizontal jumps (HJ). Training interventions comprised 11 sessions, with volume varying between 32 and 60 jumps per session. The analysis of covariance revealed that CMJ height and peak force improved only in the VJG, and that HJ distance and peak force improved in both groups. Velocity in 20 m (VEL 20 m) did not improve in either group; however, velocity in 10 m (VEL 10 m) presented a moderate positive effect size (ES = 0.66) in the HJG, while the ES was large (1.63) for improvement in the 10-20 m acceleration in the VJG, and it was largely negative (-1.09) in the HJG. The transference effect coefficients (calculated by the equation: TEC = result gain (ES) in untrained exercise/result gain (ES) in trained exercise) between CMJ and VEL 20 m and ACC 10-20 m were 1.31 and 2.75, respectively. The TEC between HJ and VEL 10 m, VEL 20 m and ACC 0-10 m were 0.44, 0.17 and 0.44, respectively. The results presented herein indicate that the plyometric training-axis is decisive in determining neuromechanical training responses in high-level soccer players.read more
Citations
More filters
Journal ArticleDOI
Methodological Characteristics and Future Directions for Plyometric Jump Training Research: A Scoping Review
Rodrigo Ramirez-Campillo,Cristian Álvarez,Antonio García-Hermoso,Robinson Ramírez-Vélez,Paulo Gentil,Abbas Asadi,Helmi Chaabene,Helmi Chaabene,Jason Moran,César Meylan,Antonio García-de-Alcaraz,Javier Sánchez-Sánchez,Fábio Yuzo Nakamura,Fábio Yuzo Nakamura,Urs Granacher,William J. Kraemer,Mikel Izquierdo,Mikel Izquierdo +17 more
TL;DR: The aims of this scoping review were to characterize the main elements of plyometric jump training studies and provide future directions for research, and the identification of specific dose-response relationships following plyometric training is needed to specifically tailor intervention programs, particularly in the long term.
Journal ArticleDOI
Vertical- vs. Horizontal-oriented Drop Jump Training: Chronic Effects on Explosive Performances of Elite Handball Players.
TL;DR: This investigation showed the crucial role that specific plyometric regimens play in optimizing similar biomechanical featured functional performances, such as jumping, sprinting, and COD.
Journal ArticleDOI
Vertically and horizontally directed muscle power exercises: Relationships with top-level sprint performance
Irineu Loturco,Bret Contreras,Ronaldo Kobal,Victor Fernandes,Neilton Moura,Felipe Siqueira,Ciro Winckler,Timothy J. Suchomel,Lucas A. Pereira +8 more
TL;DR: Results indicated that the hip-thrust is more associated with the maximum acceleration phase, whereas the loaded and unloaded vertical jumps seem to be more related to top-speed phases, which reinforces the mechanical concepts supporting the force-vector theory.
Journal ArticleDOI
Validity and reliability of speed tests used in soccer: A systematic review
Stefan Altmann,Steffen Ringhof,Steffen Ringhof,Rainer Neumann,Alexander Woll,Michael C. Rumpf +5 more
TL;DR: Several tests for all categories with acceptable levels of validity and high levels of reliability for adult soccer players are available, and researchers and practitioners may base their test selection on the broad database provided.
Journal ArticleDOI
Maximum acceleration performance of professional soccer players in linear sprints: Is there a direct connection with change-of-direction ability?
Irineu Loturco,Irineu Loturco,Lucas A. Pereira,Tomás T. Freitas,Pedro E. Alcaraz,Vinicius Zanetti,Chris Bishop,Ian Jeffreys +7 more
TL;DR: It was observed that soccer players with higher maximum acceleration rates are equally able to jump higher, sprint faster (over short distances), and achieve higher COD velocities than their slower counterparts, but appear to be less efficient at changing direction.
References
More filters
Book
Statistical Power Analysis for the Behavioral Sciences
TL;DR: The concepts of power analysis are discussed in this paper, where Chi-square Tests for Goodness of Fit and Contingency Tables, t-Test for Means, and Sign Test are used.
Journal ArticleDOI
Determining the magnitude of treatment effects in strength training research through the use of the effect size.
TL;DR: In order to improve the applicability of research to exercise professionals, it is suggested that researchers analyze and report data in intervention studies that can be interpreted in relation to other studies.
Journal ArticleDOI
Faster top running speeds are achieved with greater ground forces not more rapid leg movements
TL;DR: It is concluded that human runners reach faster top speeds not by repositioning their limbs more rapidly in the air, but by applying greater support forces to the ground.
Book
Science and Practice of Strength Training
TL;DR: The basis of strength training is based on basic Concepts of Training Theory, and the young Athlete and the Young Athlete, as well as methods of Strength Conditioning and Timing, which were developed in this book.
Journal ArticleDOI
Interference of strength development by simultaneously training for strength and endurance.
TL;DR: It is demonstrated that simultaneously training for S and E will result in a reduced capacity to develop strength, but will not affect the magnitude of increase in VO2 max.
Related Papers (5)
Straight sprinting is the most frequent action in goal situations in professional football
Neuro-musculoskeletal and performance adaptations to lower-extremity plyometric training.
Goran Marković,Pavle Mikulic +1 more