Caracterización y asociación del rendimiento físico en futbolistas Chilenos con parálisis cerebral (Characterization and association of the physical performance of Chilean football players with cerebral palsy)

Objetivo: el objetivo de este estudio fue: i) Caracterizar el perfil del rendimiento físico de los futbolistas con parálisis cerebral (PC) de la selección Chilena de fútbol 7 acorde a su clasificación deportiva (CD) y posición de juego; ii) Analizar la relación entre las variables de rendimiento físico con la CD. Método: Participaron 19 jugadores varones con PC pertenecientes a la selección Chilena de fútbol 7 agrupados según CD (FT1, FT2, FT3) y posición de juego. Se realizaron mediciones de agilidad (AG), capacidad de realizar sprint repetido (RSA), distancia recorrida en la prueba Yo-Yo (D), capacidad de salto con las pruebas Squat Jump (SJ) y Countermovement Jump (CMJ). Resultados: Se encontraron diferencias significativas de acuerdo a las CD donde los jugadores FT3 lograron un mayor rendimiento en las pruebas de AG y D comparado con FT2 y FT1, no así para RSA donde solo fue superior a FT1. Mediocampistas lograron un mayor rendimiento con un tamaño del efecto grande en todas las variables en comparación a las posiciones de defensa y delantero. Se observaron relaciones fuertes y muy fuertes entre todas las variables de rendimiento físico, así también para las relaciones con la CD a excepción de SJ y CMJ. Conclusión: Se deben considerar las características específicas de cada CD de los jugadores con PC en conjunto con la posición de juego y la táctica del equipo en sí misma, conjugando una serie de factores que busquen lograr los más altos niveles de rendimiento físico y deportivo. Abstract. Objective: The aims of this study were: i) Characterize the physical performance profile of cerebral palsy (CP) football players of the Chilean national team of football 7 a-Side according to the sport classification (SC) and playing position; ii) Analyze the relationship between physical performance variables and the SC. Method: 19 male football players with CP belonging to the Chilean national team of football 7 a-Side participated and were grouped according to SC (FT2; FT2; FT3) and playing position. Measurements of Agility (AG), repeated sprint ability (RSA), the covered distance in the Yo-Yo test (D), jump ability in Squat Jump (SJ), and Countermovement Jump (CMJ) test were made. Results: Significant differences were found according to SC, where FT3 players achieved higher performance in AG and D tests compared to FT2 and FT1, not for RSA, which was only higher than FT1. Midfielder achieved a higher performance with a large effect size in all variables compared with defender and forward positions. Strong and very strong relationships were observed between all the physical performance variables, as well as for relationships with SC except for SJ and CMJ. Conclusion: The specific characteristics of each SC of CP players must be considered in conjunction with the playing position and the team's tactics, combining a series of factors that seek to achieve the highest levels of physical and sports performance.

Download Full-text

Relationship between physical performance and match load and effects of two consecutive matches in cerebral palsy footballers (Relación entre el rendimiento físico y la carga de trabajo en partido y efecto de dos partidos consecutivos en futbolistas con p

Retos ◽

10.47197/retos.v41i0.86424 ◽

2021 ◽

Vol 41 ◽

pp. 728-734

Author(s):

Ivan Peña Gónzalez ◽

Jose Manuel Sarabia ◽

David Mancha-Triguero ◽

Manuel Moya-Ramón ◽

José Martín Gamonales

Keyword(s):

Heart Rate ◽

Cerebral Palsy ◽

Physical Performance ◽

Football Players ◽

Football Team ◽

The Relationship ◽

The Way

The aims of the present study were to analyse the relationship between the physical performance and the match load in cerebral palsy (CP) football players, and to analyse the possible impact of the Spanish League format (playing two matches on two consecutive days) on the players’ match load. Data for a Spanish CP football team (n=10; age: 31.0 ± 8.9 years; weight: 66.1 ± 8.6 kg; height: 172.2 ± 7.8 cm; BMI: 22.5 ± 2.9 kg·m-2) included anthropometric (weight, height and BMI), physical performance (CMJ, 5, 10 y 20-m sprint y MAT) and match load variables (distance covered, accelerations and decelerations, heart rate, speed and player load) from two official matches. The players’ physical performance, but not their anthropometrical measurements, correlated to the match load variables (r = 0.76–0.95; p = 0.04–0.01), except for accelerations, decelerations and heart rate-related variables (p > .05). Players’ match load data were not statistically different between matches. The results suggest that players’ physical performance influences the match load variables, and these players’ load variables in competition do not seem to be affected by the fact of playing two matches on two consecutive days. The way in which the players’ physical performance and fatigue may affect the match load variables needs more research in CP football. Resumen. Los objetivos de este estudio fueron analizar la relación entre el rendimiento físico y la carga de partido en jugadores de fútbol con parálisis cerebral (PC), y analizar la posible influencia del formato de la Liga Española (en la que se juegan dos partidos en días consecutivos) en la carga de partido. Los datos obtenidos de un equipo español de fútbol PC (n=10; edad: 31.0 ± 8.9 años; peso: 66.1 ± 8.6 kg; altura: 172.2 ± 7.8 cm; IMC: 22.5 ± 2.9 kg·m-2) incluyó variables antropométricas (peso, altura e IMC), de rendimiento físico (CMJ, 5, 10 y 20-m sprint y MAT) y variables de carga de partido (distancia recorrida, aceleraciones y deceleraciones, frecuencia cardiaca, velocidad y carga del jugador) en dos partidos oficiales. El rendimiento físico de los jugadores, pero no las variables antropométricas correlacionaron con la carga de partido (r = 0.76–0.95; p = 0.04–0.01), excepto para las aceleraciones, deceleraciones y variables relacionadas con la frecuencia cardiaca (p > .05). Los datos acerca de la carga de partido no fueron significativamente distintos entre partidos. Los resultados sugieren que el rendimiento físico de los jugadores de fútbol PC influyen en la carga en competición y esas variables de carga de partido no parecen estar afectadas por el hecho de jugar dos partidos en días consecutivos. La manera en la que el rendimiento físico de los jugadores y la fatiga puede afectar en la carga de partido necesita mayor investigación en fútbol PC.

Download Full-text

Effects of Short-Term Plyometric Training on Agility, Jump and Repeated Sprint Performance in Female Soccer Players

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18052274 ◽

2021 ◽

Vol 18 (5) ◽

pp. 2274

Author(s):

Marcin Maciejczyk ◽

Renata Błyszczuk ◽

Aleksander Drwal ◽

Beata Nowak ◽

Marek Strzała

Keyword(s):

Physical Performance ◽

Sprint Performance ◽

Soccer Players ◽

Plyometric Training ◽

Countermovement Jump ◽

Short Term ◽

Jump Performance ◽

Squat Jump ◽

Repeated Sprint ◽

Before And After

The aim of the study was to determine the effects of short-term (4 weeks, twice a week: 8 sessions) plyometric training on agility, jump, and repeated sprint performance in female soccer players. The study comprised 17 females performing this sports discipline. The players were randomly divided into two groups: with plyometric training (PLY) and the control (CON). All players followed the same training program, but the PLY group also performed plyometric exercises. Tests used to evaluate physical performance were carried out immediately before and after PLY. After implementing the short PLY training, significant improvement in jump performance (squat jump: p = 0.04, ES = 0.48, countermovement jump: p = 0.009, ES = 0.42) and agility (p = 0.003, ES = 0.7) was noted in the PLY group. In the CON group, no significant (p > 0.05) changes in physical performance were observed. In contrast, PLY did not improve repeated sprint performance (p > 0.05) among female soccer players. In our research, it was shown that PLY can also be effective when performed for only 4 weeks instead of the 6–12 weeks typically applied.

Download Full-text

Comparison of Power, Velocity and Force Parameters during Loaded Squat Jump Exercise in the Handball and Arm Wrestling Players

Journal of Education and Training Studies ◽

10.11114/jets.v5i12.2057 ◽

2017 ◽

Vol 5 (12) ◽

pp. 92 ◽

Cited By ~ 1

Author(s):

Ibrahim Can

Keyword(s):

Measurement System ◽

Performance Indicator ◽

Mean Power ◽

Mean Velocity ◽

Squat Jump ◽

National Team ◽

Jump Exercise ◽

Significant Difference ◽

Jump Velocity ◽

Jump Ability

The purpose of this study was to compare power, velocity and force parameters during loaded squat jump (SJ) exercise in the handball and arm wrestling players. In accordance with this purpose, ten arm wrestling athletes from the Turkish National Team (age: 20,7 ± 3,05 years; height: 175,2 ± 5,55 cm; weight: 71,7 ± 8,17 kg) who had ranks in competitions at World and Europe Am Wrestling Championships and ten handball players (age: 23,0 ± 4,00 years; height: 182,3 ± 6,06 cm; weight: 77,8 ± 11,3 kg) who competed at Turkish handball 1st league participated voluntarily in this study. Subjects were performed loaded SJ exercise using a load equals to 40 % of their body weight and obtained the power, velocity and force values using an isoinertial measurement system (T-Force Dynamic Measurement System). For data analysis, descriptive statistic and Mann Whitney - U analyses were used. According to analysis results, there was a statistically significant difference between jump velocity during loaded SJ of handball players and arm wrestling athletes (p < 0.05). Accordingly, arm wrestling athletes have better jump velocity than handball players in terms of mean velocity (MV) and peak velocity (PV). In addition, it was obtained that there wasn’t a statistically significant difference between handball and arm wrestling players in terms of mean force (MF), mean propulsive force (MPF), peak force (PF), peak power (PP), mean propulsive power (MPP), mean power (MP), time and moving distance to barbell bar during loaded SJ (p > 0.05). Consequently, jump ability is a crucial performance indicator in many sports that require explosive actions and the lower-body muscular power. However, it is not a true approach that athletes competing at sport branches which jump ability is an important performance indicator can display a better performance during loaded SJ.

Download Full-text

A new physical performance classification system for elite handball players: cluster analysis

Journal of Human Kinetics ◽

10.1515/hukin-2015-0177 ◽

2016 ◽

Vol 51 (1) ◽

pp. 131-142 ◽

Cited By ~ 1

Author(s):

Iker J. Bautista ◽

Ignacio J. Chirosa ◽

Joseph E. Robinson ◽

Roland van der Tillaar ◽

Luis J. Chirosa ◽

...

Keyword(s):

Physical Performance ◽

Peak Power ◽

Bench Press ◽

National Level ◽

Test Results ◽

Countermovement Jump ◽

Mean Power ◽

Squat Jump ◽

Power Load ◽

The Mean

Abstract The aim of the present study was to identify different cluster groups of handball players according to their physical performance level assessed in a series of physical assessments, which could then be used to design a training program based on individual strengths and weaknesses, and to determine which of these variables best identified elite performance in a group of under-19 [U19] national level handball players. Players of the U19 National Handball team (n=16) performed a set of tests to determine: 10 m (ST10) and 20 m (ST20) sprint time, ball release velocity (BRv), countermovement jump (CMJ) height and squat jump (SJ) height. All players also performed an incremental-load bench press test to determine the 1 repetition maximum (1RMest), the load corresponding to maximum mean power (LoadMP), the mean propulsive phase power at LoadMP (PMPPMP) and the peak power at LoadMP (PPEAKMP). Cluster analyses of the test results generated four groupings of players. The variables best able to discriminate physical performance were BRv, ST20, 1RMest, PPEAKMP and PMPPMP. These variables could help coaches identify talent or monitor the physical performance of athletes in their team. Each cluster of players has a particular weakness related to physical performance and therefore, the cluster results can be applied to a specific training programmed based on individual needs.

Download Full-text

The relationship between lower-body stiffness and dynamic performance

Applied Physiology Nutrition and Metabolism ◽

10.1139/apnm-2014-0063 ◽

2014 ◽

Vol 39 (10) ◽

pp. 1144-1150 ◽

Cited By ~ 18

Author(s):

Elizabeth C. Pruyn ◽

Mark Watsford ◽

Aron Murphy

Keyword(s):

Physical Performance ◽

Female Athletes ◽

Dynamic Stiffness ◽

Dynamic Performance ◽

Medial Gastrocnemius ◽

Lower Body ◽

Static Stiffness ◽

Lateral Gastrocnemius ◽

Performance Variables ◽

The Relationship

Greater levels of lower-body stiffness have been associated with improved outcomes for a number of physical performance variables involving rapid stretch-shorten cycles. The aim of this study was to investigate the relationship between several measures of lower-body stiffness and physical performance variables typically evident during team sports in female athletes. Eighteen female athletes were assessed for quasi-static stiffness (myometry) for several isolated muscles in lying and standing positions. The muscles included the medial gastrocnemius (MedGast), lateral gastrocnemius, soleus, and Achilles tendon. Dynamic stiffness during unilateral hopping was also assessed. Participants were separated into relatively stiff and compliant groups for each variable. A number of significant differences in performance were evident between stiff and compliant subjects. When considering the quasi-static stiffness of the MedGast in lying and standing positions, relatively stiff participants recorded significantly superior results during agility, bounding, sprinting, and jumping activities. Stiffness as assessed by hopping did not discriminate between performance ability in any test. Relationships highlighted by MedGast results were supported by further significant differences in eccentric utilisation ratio and drop jump results between stiff and compliant groups for the lateral gastrocnemius and soleus in lying and standing positions. Higher levels of lower-body stiffness appear to be advantageous for females when performing rapid and (or) repeated stretch-shorten cycle movements, including sprinting, bounding, and jumping. Further, the stiffness of the MedGast is of particular importance during the performance of these activities. It is important for practitioners working with athletes in sports that rely upon these activities for success to consider stiffness assessment and modification.

Download Full-text

Training aimed at the development of power and physical performance of futsal players

Brazilian Journal of Kinanthropometry and Human Performance ◽

10.1590/1980-0037.2019v21e60119 ◽

2019 ◽

Vol 21 ◽

Author(s):

Victor Hugo de Freitas ◽

Márcio Rinaldo ◽

Guilherme Guimarães Turquino ◽

Bernardo Miloski ◽

Solange de Paula Ramos

Keyword(s):

Physical Performance ◽

Lower Limb ◽

Perceived Exertion ◽

Training Load ◽

Training Period ◽

Countermovement Jump ◽

Endurance Test ◽

Squat Jump ◽

Maximal Speed ◽

Consequent Improvement

Abstract The aim of the study was to analyze the effect of a training period aimed at the development of lower limb power and physical performance of futsal players. The sample consisted of 10 futsal players from a professional team aged 23.70 ± 5.85 years, 72.33 ± 6.01 kg and 174.40 ± 0.05 cm. Players were monitored for a period of 4 training weeks, corresponding to the beginning of the competitive period. During this period, physical training sought to improve lower limb power. At the beginning and end of the training period, the following tests were performed: Squat jump (SJ), Countermovement jump (CMJ), 15-meter speed(Vel_15m) and Futsal Intermittent Endurance Test (FIET).The training load was monitored by the Session Perceived Exertion method.Weeks 1 and 3 presented higher training load than weeks 2 and 4 (p <0.01). In the post-training period, shorter running time in the Vel_15m test (p = 0.04), greater height in SJ (p <0.01) and CMJ (p <0.01) tests, and higher maximal speed in FIET (p = 0.04) were observed. It could be concluded that directing training at the beginning of the competitive season to improve power increases the lower limb power of futsal players, with consequent improvement of speed and the ability to perform intermittent actions at high intensities.

Download Full-text

Effects of Plyometric Versus Optimum Power Load Training on Components of Physical Fitness in Young Male Soccer Players

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.2019-0039 ◽

2020 ◽

Vol 15 (2) ◽

pp. 222-230 ◽

Cited By ~ 1

Author(s):

João Ribeiro ◽

Luís Teixeira ◽

Rui Lemos ◽

Anderson S. Teixeira ◽

Vitor Moreira ◽

...

Keyword(s):

Physical Performance ◽

Young Male ◽

Performance Outcomes ◽

Soccer Players ◽

Countermovement Jump ◽

Squat Jump ◽

Sprint Speed ◽

Power Load ◽

High Level ◽

Training Exercises

Purpose: The current study aimed to compare the effects of plyometric (PT) versus optimum power load (OPL) training on physical performance of young high-level soccer players. Methods: Athletes were randomly divided into PT (horizontal and vertical drills) and OPL (squat + hip thrust exercises at the load of maximum power output) interventions, applied over 7 weeks during the in-season period. Squat and countermovement jumps, maximal sprint (10 and 30 m), and change of direction (COD; agility t test) were the pretraining and posttraining measured performance variables. Magnitude-based inference was used for within- and between-group comparisons. Results: OPL training induced moderate improvements in vertical squat jump (effect size [ES]: 0.97; 90% confidence interval [CI], 0.32–1.61) and countermovement jump (ES: 1.02; 90% CI, 0.46–1.57), 30-m sprint speed (ES: 1.02; 90% CI, 0.09–1.95), and COD performance (ES: 0.93; 90% CI, 0.50–1.36). After PT training method, vertical squat jump (ES: 1.08; 90% CI, 0.66–1.51) and countermovement jump (ES: 0.62; 90% CI, 0.18–1.06) were moderately increased, while small enhancements were noticed for 30-m sprint speed (ES: 0.21; 90% CI, −0.02 to 0.45) and COD performance (ES: 0.53; 90% CI, 0.24–0.81). The 10-m sprint speed possibly increased after PT intervention (small ES: 0.25; 90% CI, −0.05 to 0.54), but no substantial change (small ES: 0.36; 90% CI, −0.40 to 1.13) was noticed in OPL. For between-group analyses, the COD ability and 30-m sprint performances were possibly (small ES: 0.30; 90% CI, −0.20 to 0.81; Δ = +1.88%) and likely (moderate ES: 0.81; 90% CI, −0.16 to 1.78; Δ = +2.38%) more improved in the OPL than in the PT intervention, respectively. Conclusions: The 2 different training programs improved physical performance outcomes during the in-season period. However, the combination of vertically and horizontally based training exercises (squat + hip thrust) at optimum power zone led to superior gains in COD and 30-m linear sprint performances.

Download Full-text

SELECTION OF TALENTS IN HANDBALL: ANTHROPOMETRIC AND PERFORMANCE ANALYSIS

Revista Brasileira de Medicina do Esporte ◽

10.1590/1517-869220172305141727 ◽

2017 ◽

Vol 23 (5) ◽

pp. 361-365 ◽

Cited By ~ 1

Author(s):

Juan José Fernández-Romero ◽

Helena Vila Suárez ◽

Jose María Cancela Carral

Keyword(s):

Physical Performance ◽

Maturation Stage ◽

Squat Jump ◽

Performance Variables ◽

Detection Model ◽

Counter Movement Jump ◽

Key Factor ◽

And Performance ◽

Study Participants ◽

Shuttle Run

ABSTRACT Introduction: Anthropometric and physical performance parameters that determine competitive levels in handball need to be carefully studied to identify which of them can bring the optimal contribution when the talents for this sport are selected. Objective: To identify which anthropometric and physical performance variables evaluated in the basic categories (infantile, under-15 and cadet, under-17) have the greatest influence on professional levels attained by male and female handball players throughout their sports careers. Method: A total of 145 handball players (75 males and 70 females) participated in the study. Participants were initially evaluated during the season 1998-99 and their performance levels were supervised until March 2013. The resulting data were classified according to the performance level (regional n = 109; national n = 36), gender, and category (infantile, cadet). Results: The MANCOVA analysis indicated that the player’s maturation stage is one of the main parameters to be accounted for when selecting the variables that should configure a talent detection model for handball, which is also conditioned by sex. Anthropometric variables are highly influential in the case of male players, while physical performance variables (squat jump, counter movement jump, counter movement jump with arm, 10x5m shuttle run, 20 m shuttle run, and VO2 max) have a similar effect in males and females. Conclusion: The study of changes occurring in anthropometric and physical performance variables may yield useful information to detect talents in handball, and maturation is a key factor to choose the most appropriate variables.

Download Full-text