Power Output Estimation in Vertical Jump Performed by Young Male Soccer Players

2011 ◽  
Vol 25 (6) ◽  
pp. 1638-1646 ◽  
Author(s):  
Livio Quagliarella ◽  
Nicola Sasanelli ◽  
Giuseppe Belgiovine ◽  
Lorenzo Moretti ◽  
Biagio Moretti
Keyword(s):  
Power Output ◽  
Vertical Jump ◽  
Young Male ◽  
Soccer Players

scholarly journals RELATIONSHIPS BETWEEN AEROBIC AND ANAEROBIC CARDIOPULMONARY INDICES OF YOUNG MALE SOCCER PLAYERS WHEN PERFORMING LABORATORY FUNCTIONAL TESTS

2021 ◽  
Vol 2 (2021) ◽  
pp. 40-50
Author(s):  
Borislava Petrova ◽  
Keyword(s):  
Power Output ◽  
Pulmonary Ventilation ◽  
Cardiopulmonary Exercise Testing ◽  
Average Power ◽  
Young Male ◽  
Energy Systems ◽  
Soccer Players ◽  
Wingate Anaerobic Test ◽  
Cardiopulmonary Exercise ◽  
Aerobic And Anaerobic

Soccer is a high-intensity intermittent team sport where both the aerobic and anaerobic energy systems contribute to the physiological demands of the game. The study aims to search and determine relationships between the values of cardiopulmonary and gas exchange indices during frequently used laboratory tests - the CardioPulmonary Exercise Test (CPET) and the Wingate Anaerobic Test (WAnT), exploring the capacity of the energy systems. Forty-seven soccer players (15.06 ± 0.84 years of age) performed both tests as Oxygen uptake (VO2), Oxygen pulse (O2HR), Pulmonary ventilation (VE), Volume of expired air (VTex), and Breath frequency (BF) were measured online using a breathby-breath cardiopulmonary exercise testing system. Ergometric achievements during WAnT: PP (Peak Power) 662.4 ± 121.2 W; AP (Average Power) 494.67 ± 98.5 W; FI (Fatigue Index) 61.2 ± 28.7%. There was no correlation between WAnT PP and AP and maximum power output in CPET. WAnT VE and VTex correlate significantly with CPET VO2max (r = .676 and r = .772, respectively). The main finding was a presence of approximately identical maximal values of cardiopulmonary parameters achieved in the very different in duration and intensity CPET and WАnT: insignificant differences between CPET versus WAnT: VO2max (55.97 ± 2.02 versus 56.02 ± 17.3 ml.kg.min-1); VEmax (133.96 ± 21.77 versus 126.77 ± 24.77 l.min-1); VTex max (2.19 ± 0.37 l versus 2.06 ± 0.43 l); BFmax (62.20 versus 75.43.min-1). We assume that when conducting WAnT with simultaneous registration of respiration, together with the indices of athletes’ power output, reliable information about the magnitude of VO2max and other cardiopulmonary parameters of players could be obtained. This will greatly facilitate the ongoing control of the exercise conditioning status of athletes.

Interrelationships among Jumping Power, Sprinting Power and Pubertal Status after Controlling for Size in Young Male Soccer Players

2017 ◽  
Vol 124 (2) ◽  
pp. 329-350 ◽  
Author(s):  
Giovani S. Cunha ◽  
Sean P. Cumming ◽  
João Valente-dos-Santos ◽  
João P. Duarte ◽  
Gustavo Silva ◽  
...  
Keyword(s):  
Body Size ◽  
Effect Size ◽  
Power Output ◽  
Allometric Scaling ◽  
Young Male ◽  
Soccer Players ◽  
Large Effect Size ◽  
Maximal Power Output ◽  
Pubertal Status ◽  
Small Effect Size

This study examined power output on jumping and sprinting tests in young soccer players of differing pubertal status, while controlling for body size with allometric scaling exponents. A total of 46 males aged 12–18 years (14.17 years) were divided into three groups: pre-pubescent ( n = 12), pubescent ( n = 22), and post-pubescent ( n = 12). Participants performed a series of tests, including the squat jump (SJ), countermovement jump (CMJ), and 10-meter and 30-meter sprint test protocols. The Post-PUB group was older ( F = 112.411, p < 0.001), more experienced in competitive soccer ( F = 8.055, p = 0.001), taller ( F = 28.940, p < 0.001), and heavier ( F = 20.618, p < 0.001), when compared to peers in the other groups. Mean differences in jumping and sprinting performances suggested a significant effect for pubertal status on performance in the 10-meter sprint (large effect size, F = 8.191, p < 0.001) and 30-meter sprint (large effect size, F = 8.093, p < 0.001) after allometric scaling. Power output derived from SJ (small effect size, F = 0.536, p = 0.001) and CMJ (small effect size, F = 1.058, p = 0.356) showed no significant differences across players of varying pubertal status. Biological maturation showed a large effect on maximal power output for sprints, but not for jumps, when the effect of body size was adjusted by statistically derived allometric exponents in young male soccer players.

scholarly journals Effects of combined plyometric and sled training on vertical jump and linear speed performance ​​in young soccer players (Efectos de la combinación de entrenamiento pliométrico y de arrastres sobre el rendimiento en salto vertical y la velocidad lineal e

Retos ◽  
2021 ◽  
Vol 42 ◽  
pp. 228-235
Author(s):  
Moisés Falces-Prieto ◽  
Javier Raya-González ◽  
Eduardo Sáez de Villarreal ◽  
Jesús Rodicio-Palma ◽  
Francisco Javier Iglesias-García ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Young Male ◽  
Soccer Players ◽  
Control Group ◽  
General Development ◽  
Speed Performance ◽  
Level Of Significance ◽  
And Control ◽  
Los Grupos ◽  
Experimental Group

The objective of this study was to evaluate the effects of a combined plyometrics and sled training carried out two days a week for 8 weeks. 60 young male soccer players were distributed in 4 groups (Under U16) [Experimental Group (U16 Exp, n=15) and Control Group (U16 Cont, n=15); and (Under19) [U19 Exp, (n=15) and U19 Cont, (n=15)]. The jump with countermovement (CMJ) was evaluated with Chronojump-Boscosystem® and the time in seconds (sec) in the 10, 20, and 40 m split with FitLight Trainer®. Was calculated a level of significance of p≤0.05, the effect size (ES) and % change. Both experimental groups improved from pre-to pots-test in CMJ [U16Exp (p<0.02) and U19Exp (p<0.01)] and the 10, 20, and 40 m splits [U16Exp (p<0.02, p<0.03, and p<0.01, respectively) and U19Exp (p<0.02, p<0.02, and p<0.01, respectively)]. Therefore, the combination of football and plyometric and resisted methods can be used for a general development of the neuromuscular capacities of young soccer players. Resumen. El objetivo fue evaluar los efectos de un entrenamiento combinado de pliometría y arrastres realizado 2 días en semana durante 8 semanas. 60 jugadores jóvenes de fútbol fueron distribuidos en 4 grupos (Cadete (CAD) [Grupo Experimental (CADExp n= 15) y Grupo Control (CADCont n= 15)] y (Juvenil (JUV) [JUVExp n= 15 y JUVCont n= 15]. Se evaluó el salto con contramovimiento (CMJ) con Chronojump-Boscosystem® y el tiempo en segundos (seg) en los tramos de 10, 20, y 40 m con FitLight Trainer®. Se calculó en nivel de significación p≤0.05, tamaño del efecto (TE) y % de cambio. Los grupos experimentales mejoraron del pre al pots-test en CMJ [CADExp (p<0.02) y JUVExp (p<0.01)] y los tramos de 10, 20, y 40 m [CADExp (p<0.02, p<0.03, p<0.01, respectivamente) y JUVExp (p<0.02, p<0.02, p<0.01, respectivamente)]. Por tanto, la combinación de fútbol y métodos pliométricos y resistidos puede utilizarse para un desarrollo general de las capacidades neuromusculares de los futbolistas jóvenes.

scholarly journals Influence of biological maturation on speed, jump, and endurance in high-level youth soccer players

2020 ◽  
Vol 42 ◽  
Author(s):  
Jorge L. C. Marinho ◽  
André O. Martins ◽  
Ezequiel Rey ◽  
Sixto González-Víllora
Keyword(s):  
Vertical Jump ◽  
Young Male ◽  
Peak Height ◽  
Soccer Players ◽  
Height Velocity ◽  
Peak Height Velocity ◽  
Speed Test ◽  
Test Distance ◽  
Effective Development ◽  
High Level

ABSTRACT The goal of this study is to identify the influence of the maturity state in the physical components of the high level youth male soccer players of an elite club in Brazil. Eighty-seven young male soccer players participated in this study, distributed in 34 U-14 players, 23 U-16 players and 30 U-19 players. Peak height velocity (PHV) was estimated: Pre-PHV (<-1.0 years, n=13), mid-PHV (-0.99 to 0.5 years, n=41), and post-PHV (>0.5 years, n=33). Running-based anaerobic sprint test, squat jump, yo-yo and 30m speed test were performed. The results of this study suggest that the maturational development influences vertical jump. VO2max, yo-yo test distance, fatigue index and power. This information is essential for the identification and effective development of talented football players.

scholarly journals Comparison of Drop Jump and Tuck Jump Knee Joint Kinematics in Elite Male Youth Soccer Players: Implications for Injury Risk Screening

2020 ◽  
Vol 29 (6) ◽  
pp. 760-765 ◽  
Author(s):  
Rhodri S. Lloyd ◽  
Jon L. Oliver ◽  
Gregory D. Myer ◽  
Mark B. De Ste Croix ◽  
Josh Wass ◽  
...  
Keyword(s):  
Injury Risk ◽  
Vertical Jump ◽  
Knee Kinematics ◽  
Frontal Plane ◽  
Young Male ◽  
Soccer Players ◽  
Height Velocity ◽  
Peak Height Velocity ◽  
Male Youth ◽  
Youth Soccer

Context: Despite the popularity of jump-landing tasks being used to identify injury risk factors, minimal data currently exist examining differences in knee kinematics during commonly used bilateral jumping tasks. This is especially the case for rebounding-based protocols involving young athletes. Objective: To compare the frontal plane projection angles (FPPAs) during the drop vertical jump (DVJ) and tuck jump assessment (TJA) in a cohort of elite male youth soccer players of varying maturity status. Methods: A total of 57 male youth soccer players from an English championship soccer club participated in this study. Participants performed 3 trials of the DVJ and TJA, during which movement was recorded with 2-dimensional video cameras. FPPA for both right (FPPA-r) and left (FPPA-l) legs, with values <180° indicative of medial knee displacement. Results: On a whole-group level, FPPA-r (172.7° [7.4°] vs 177.2° [11.7°]; P < .05; effect size [ES] = 0.46) and FPPA-l (173.4° [7.3°] vs 179.2° [11.0°]; P < .05; ES = 0.62) were significantly greater for both limbs in the TJA compared with the DVJ; however, these differences were less consistent when grouped by maturity status. FPPA-r during the TJA was significantly and moderately greater in the circa-peak height velocity (PHV) group compared with the post-PHV cohorts (169.4° [6.4°] vs 175.3° [7.8°]; P < .05; ES = 0.49). Whole-group data showed moderate relationships for FPPA-r and FPPA-l between the TJA and DVJ; however, stronger relationships were shown in circa- and post-PHV players compared with the pre-PHV cohort. Conclusions: Considering that the TJA exposed players to a larger FPPA and was sensitive to between-group differences in FPPA-r, the TJA could be viewed as a more suitable screen for identifying FPPA in young male soccer players.

COMPARISON OF LATERAL ABDOMINAL MUSCLE THICKNESS IN YOUNG MALE SOCCER PLAYERS WITH AND WITHOUT LOW BACK PAIN

2019 ◽  
Vol 14 (2) ◽  
pp. 273-281 ◽  
Author(s):  
Pardis Noormohammadpour ◽  
Shadi Mirzaei ◽  
Navid Moghadam ◽  
Mohammad Ali Mansournia ◽  
Ramin Kordi
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Young Male ◽  
Muscle Thickness ◽  
Abdominal Muscle ◽  
Soccer Players ◽  
Low Back

scholarly journals Salivary oxytocin, cognitive anxiety and self-confidence in pre-competition athletes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Irene La Fratta ◽  
Sara Franceschelli ◽  
Lorenza Speranza ◽  
Antonia Patruno ◽  
Carlo Michetti ◽  
...  
Keyword(s):  
Stress Response ◽  
State Anxiety ◽  
Young Male ◽  
Soccer Players ◽  
Soccer Match ◽  
Self Confidence ◽  
Cognitive Anxiety ◽  
Psychophysiological Stress ◽  
Different Levels

AbstractIt is well known that soccer sport has the potential for high levels of stress and anxiety and that these are linked to Cortisol (C) variations. To date, much research has been devoted to understanding how Oxytocin (OT) can affect anxiety in response to a challenge. The aim of this study was to investigate, in 56 young male soccer players, the psychophysiological stress response 96 and 24 h before one soccer match of a tournament, in order to establish whether athletes who won or lost, show different levels of C and OT or expressions of competitive state anxiety subcomponents. We found that winners had significantly lower Cognitive anxiety and higher Self-confidence scores than losers. Also, significant differences between winners and losers in C and OT concentrations were observed, with higher OT levels in who has won and higher C levels in who has lost. Our results showed interesting associations between OT, C, anxiety feelings, and the outcome of competition.

Impact of COVID-19 Lockdown on Serie A Soccer Players’ Physical Qualities

2021 ◽  
Author(s):  
Ermanno Rampinini ◽  
Federico Donghi ◽  
Marco Martin ◽  
Andrea Bosio ◽  
Marco Riggio ◽  
...  
Keyword(s):  
Aerobic Fitness ◽  
Mixed Models ◽  
Peak Power ◽  
Vertical Jump ◽  
Soccer Players ◽  
Limited Evidence ◽  
Professional Soccer ◽  
Home Based ◽  
Before And After ◽  
Different Seasons

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.

Analysis of Power Output Time Series in Response to Supramaximal Exercise: An Approach Through Dynamic Factor Analysis

2011 ◽  
Vol 23 (1) ◽  
pp. 3-16 ◽  
Author(s):  
Paula Marta Bruno ◽  
Fernando Duarte Pereira ◽  
Renato Fernandes ◽  
Gonçalo Vilhena de Mendonça
Keyword(s):  
Factor Analysis ◽  
Power Output ◽  
Soccer Players ◽  
Upper Body ◽  
Dynamic Factor Analysis ◽  
Dynamic Factor ◽  
Lower Body ◽  
Supramaximal Exercise ◽  
Output Time ◽  
Pattern Of Variation

The responses to supramaximal exercise testing have been traditionally analyzed by means of standard parametric and nonparametric statistics. Unfortunately, these statistical approaches do not allow insight into the pattern of variation of a given parameter over time. The purpose of this study was to determine if the application of dynamic factor analysis (DFA) allowed discriminating different patterns of power output (PO), during supramaximal exercise, in two groups of children engaged in competitive sports: swimmers and soccer players. Data derived from Wingate testing were used in this study. Analyses were performed on epochs (30 s) of upper and lower body PO obtained from twenty two healthy boys (11 swimmers and 11 soccer players) age 11–12 years old. DFA revealed two distinct patterns of PO during Wingate. Swimmers tended to attain their peak PO (upper and lower body) earlier than soccer players. As importantly, DFA showed that children with a given pattern of upper body PO tend to perform similarly during lower body exercise.

scholarly journals Effect of Core Training Program on Physical Functional Performance in Female Soccer Players

2016 ◽  
Vol 9 (5) ◽  
pp. 115 ◽  
Author(s):  
Cengiz Taskin
Keyword(s):  
Functional Performance ◽  
Vertical Jump ◽  
Training Group ◽  
Soccer Players ◽  
Control Group ◽  
The Core ◽  
Standing Long Jump ◽  
Long Jump ◽  
The Mean ◽  
Core Training

<p class="apa">The purpose of this study was to determine the effect of core training program on speed, acceleration, vertical jump, and standing long jump in female soccer players. A total of 40 female soccer players volunteered to participate in this study. They were divided randomly into 1 of 2 groups: core training group (CTG; n = 20) and control group (CG; n = 20). The mean (SD) age was 19.05 ± 1.15 years, height was 160.60 ± 4.22 cm, weight was 56.45 ± 3.33 kg, and sport age was 4.50 ± 1.24 for the core training group; the mean (SD) age was 18.55 ± 0.76 years, height was 159.10 ± 3.86 cm, weight was 52.20 ± 3.60 kg, and sport age was 3.35 ± 0.75 years for the control group. Following randomization, the 2 groups did not differ significantly (p&gt;0.05) in any of the dependent variables. The subjects in the control group did not participate in the training and participated only in the pre- and posttest measurements. To evaluate the effect of core training over the functional performance, we applied a testing procedure that included measurements of speed, acceleration, vertical jump, and standing long jump. The core training group showed a 3.4%, 5.9%, 13.3%, 4.2% improvement in speed, acceleration, vertical jump, and standing long jump (respectively) (P&lt;0.05), whereas the control group did not change (P&gt;0.05). In conclusion, Core exercises were improved speed, acceleration, vertical jump, and standing long jump in 18-19 years-old female soccer players. Therefore, it is believed core training is necessary for optimal sport performance and should not be dismissed for all sport branches.</p>

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