scholarly journals INFLUENCE OF VERTICAL JUMP PERFORMANCE ON ACCELERATION, MAXIMAL SPEED AND CHANGE OF DIRECTION SPEED IN PROFESSIONAL SOCCER PLAYERS.

2017 ◽  
Vol 5 (12) ◽  
pp. 1366-1371
Author(s):  
Bahar Ateş ◽  
◽  
Ebru Çetin ◽  
Author(s):  
Javier Nuñez ◽  
Luis Suarez-Arrones ◽  
Moisés de Hoyo ◽  
Irineu Loturco

Several studies have confirmed the efficacy of strength training to maximize soccer player performance during competition. The aim of this meta-analysis was to determine the effects of different strength training protocols on short-sprint and vertical jump performance of professional soccer players from the first division of their countries. The following inclusion criteria were employed for the analysis: (a) randomized studies; (b) high validity and reliability instruments; (c) studies published in a high-quality peer-reviewed journal; (d) studies involving professional soccer players from the first division; (e) studies with descriptions of strength training programs; and (f) studies where countermovement jump and 10-m sprint time were measured pre and post training. Overall, the different strength-oriented training schemes produced similar performance improvements, which seem not to depend on the training strategy. Strength training appears to have a lower effect when applied during in-season than when applied in pre-season periods in first division soccer players. In this meta-analysis it is not possible to confirm that strength training in isolation is capable of improving the short-sprint and jump performance of elite soccer players. The congested fixture schedule and, thus, the limited time to perform complementary (non-specific) training sessions, may contribute to these reduced effects.


Author(s):  
Thomas I. Gee ◽  
Paul Harsley ◽  
Daniel C. Bishop

Purpose: This study investigated the effects of complex-paired and reverse-contrast 10-week training programs on sprint, power, and change-of-direction speed performance of elite academy soccer players. Methods: Seventeen elite academy soccer players each performed assessments of the 10- and 40-m sprint, Abalakov vertical jump, seated medicine-ball throw, and Arrowhead change-of-direction speed test, both prior to and after a twice-weekly 10-week resistance-training program. The participants were randomly split into 2 groups; the complex-paired training group (CPT, n = 9) performed 4 different complex pairs (heavy-resistance exercises paired with plyometric and Olympic lifting–style exercises), with each pair being interspersed with an 8-minute recovery period in line with recommended guidelines. The comparative group—the reverse-contrast training group (RCT, n = 8)—performed the same exercises; however, all of the plyometric and Olympic lifting exercises preceded the heavy-resistance exercises. Results: Both groups achieved postintervention increases in the seated medicine-ball throw test (CPT +1.8% and RCT +1.6%, P < .05), whereas VJ performance improved only in the CPT group (+3.4%, P = .003). No significant improvements were observed in either the 10- and the 40-m sprint or Arrowhead change-of-direction speed test for either group. Conclusions: The CPT experienced a small but significant within-group improvement in jump performance. However, no significant between-groups differences were observed in any of the testing variables postintervention. Subsequently, for academy soccer athletes, the CPT approach did not produce meaningful benefits to performance compared with a more time-efficient reverse-contrast approach.


Author(s):  
Ermanno Rampinini ◽  
Federico Donghi ◽  
Marco Martin ◽  
Andrea Bosio ◽  
Marco Riggio ◽  
...  

AbstractIn March 2020, the COVID-19 pandemic forced most activities in Italy, including soccer, to cease. During lockdown, players could only train at home, with limited evidence regarding the effect of this period. Therefore, this study aimed to investigate the effect of COVID-19 lockdown on professional soccer players’ physical performance. Aerobic fitness and vertical jump were assessed before and after four periods in two different seasons: COVID-19 lockdown, competitive period before lockdown, competitive period and summer break of the 2016–2017 season. Linear mixed models were used to examine within-period changes and between-period differences in changes observed during COVID-19 lockdown and the three other periods. Within-period changes in aerobic fitness showed a significant improvement following COVID-19 lockdown (p<0.001) and a significant decline during summer break (p<0.001). Between-period differences were significant in the comparison of COVID-19 lockdown with both the competitive 2019–2020 season (p<0.01) and summer break (p<0.001). For the vertical jump, only the between-period comparison revealed significant differences as the changes associated with COVID-19 lockdown were worse than those of the two competitive periods, for both absolute (p<0.05; p<0.001) and relative peak power (p<0.01; p<0.001). Home-based training during lockdown was effective to improve aerobic fitness, although it did not allow players to maintain their competitive period’s power levels.


Retos ◽  
2015 ◽  
pp. 114-117
Author(s):  
Javier Yanci Irigoyen ◽  
Alberto García Huerta ◽  
Daniel Castillo Alvira ◽  
Luis Ángel Rivero Benito ◽  
Asier Los Arcos Larumbe

Los objetivos de este estudio fueron, por un lado, evaluar la capacidad cardiovascular, el rendimiento en el sprint en línea recta, la capacidad de cambio de dirección (CODA) y el salto horizontal en jugadores de fútbol semi profesionales, y por otro, examinar la relación existente entre las distintas capacidades analizadas. En este estudio participaron 18 jugadores de fútbol semi profesionales (25.6 ± 4.8 años, 1.82 ± .1 m, 77.9 ± 7.1 kg, 23.6 ± 1.8 kg·m-2). El VO2max estimado obtenido en el test intermitente de resistencia Yo-Yo nivel 1 (YYIR1) fue de 51.70 ± 3.94 ml·kg-1·min-1. Los resultados en el sprint 5 m (SP5), 15 m (SP15) y en el Modified Agility T-test (MAT) fueron de 1.01 ± .05 s, 2.39 ± .10 s y 4.89 ± .23 s, respectivamente. En la capacidad de salto horizontal (SH) se obtuvo una distancia media de 1.97 ± .15 m para el salto con contra movimiento (HCMJ) y de 2.37 ± .16 m para el salto con contra movimiento con manos libres (HCMJAS). Se observaron correlaciones significativas y altas entre los valores de SP15 con el MAT (r = .757, p < .01) y con el HCMJ (r = -.749, p < .01). Debido a las altas correlaciones encontradas entre las distintas cualidades anaeróbicas, podría resultar interesante implementar entrenamientos específicos de salto horizontal en las rutinas de entrenamiento con el fin de mejorar el rendimiento en la capacidad de aceleración y la capacidad de cambiar de dirección de los futbolistas. Palabras clave: aceleración, agilidad, salto horizontal, resistencia, correlación, rendimiento.Abstract: The aims of this study were, first, to analyze cardiovascular capacity, performance in the straight sprint, change of direction ability (CODA) and horizontal jump ability in semi-professional soccer players, and secondly, to examine the relationship among the different abilities. This study involved 18 semi professional soccer players (25.6 ± 4.8 years, 1.82 ± .1 m, 77.9 ± 7.1 kg, 23.6 ± 1.8 kg·m-2). The estimated VO2max obtained in the Yo-Yo intermittent endurance level 1 test (YYIR1) was 51.70 ± 3.94 ml·kg-1·min-1. The results in the 5 m sprint (SP5), 15 m sprint (SP15) and Modified Agility T-test (MAT) were 1.01 ± .05 s, 2.39 ± .10 s and 4.89 ± .23 s, respectively. In the horizontal jump (HJ) an average distance of 1.97 ± .15 m for the countermovement jump (HCMJ) and 2.37 ± .16 m for the arm swing counter movement jump (HCMJAS) was obtained. Significant and high correlations between the values   of SP15 and MAT (r = 0.757, p < .01) and the HCMJ (r = -.749, p < .01) were observed. Correlations found among different anaerobic qualities, can lead us to think that it might be interesting to implement specific horizontal jump training routines to improve performance of sprint and change of direction abilities in soccer players.Key words: acceleration, agility, horizontal jump, endurance, correlation, performance.


2019 ◽  
Vol 38 (11-12) ◽  
pp. 1279-1285 ◽  
Author(s):  
Irineu Loturco ◽  
Ian Jeffreys ◽  
César C. Cal Abad ◽  
Ronaldo Kobal ◽  
Vinicius Zanetti ◽  
...  

Author(s):  
Jennie Stieg ◽  
Kimberly J Faulkinbury ◽  
Lee E Brown ◽  
Jared W Coburn ◽  
Daniel A Judelson

Sports ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 108 ◽  
Author(s):  
Athos Trecroci ◽  
Marco Duca ◽  
Damiano Formenti ◽  
Giampietro Alberti ◽  
F. Marcello Iaia ◽  
...  

This study aimed to investigate the effects of a five-week compound training (with strength and plyometric exercises performed on separate days) on sprint, change of direction, and vertical jump in young soccer players. Eighteen novices in strength and plyometric training were assigned to either a compound training (CMPT) or a control condition (CNT). Both groups trained three times per week. One session was dedicated to soccer-specific drills. The other two weekly sessions were dedicated to circuit-based training routines employing on one-day strength exercises and on the other day plyometric exercises in the CMPT group. At the same time, the CNT group performed two weekly soccer-specific training sessions. All players were tested by 15-m sprint, change-of-direction and acceleration test (CODAT), squat jump, and countermovement jump with arms swing tests. CMPT group improved CODAT, squat jump and countermovement jump to a higher extent compared to CNT group (large vs small or trivial effects, p < 0.05), while both groups had similar 15-m sprint performance (p > 0.05). These results support the use of compound training to improve change of direction and vertical jump performances in young novice soccer players, which are unfamiliar with structured and advanced strength and plyometric training.


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