scholarly journals Correlación entre pensamiento táctico y el desarrollo de las habilidades técnicas y físicas de jugadores de fútbol infantil (Correlation between tactical thought and the development of the technical and physical skills of child soccer players)

Retos ◽  
2020 ◽  
pp. 138-142
Author(s):  
Saúl Ignacio Vega Orozco ◽  
Fernando Bernal Reyes ◽  
Omar Ivan Gavotto Nogales ◽  
Hector Manuel Sarabia Sainz ◽  
Mario Alberto Horta Gim
Keyword(s):  
Training Program ◽  
Soccer Players ◽  
Football Players ◽  
Positive Correlation ◽  
Low Level ◽  
Numerical Equality ◽  
Positive Correlations ◽  
Physical Skills ◽  
Los Grupos

 El presente trabajo pretende evidenciar la correlación entre el nivel de pensamiento táctico de los jugadores de fútbol infantil de nivel iniciación en la mejora de las habilidades técnicas y físicas. Metodología: participaron 26 jugadores de fútbol infantil de ocho y nueve años con dos grupos: un grupo con desigualdad numérica y otro con igualdad, ambos con 13 participantes. A los dos grupos se les aplicó una batería de pruebas físicas y técnicas, así como el test del conocimiento táctico ofensivo en el fútbol (TCTOF). Los grupos estuvieron expuestos a un programa de entrenamiento de 16 sesiones. Resultados: Los jugadores pertenecientes al nivel muy bajo, solo mostraron cambios significativos negativos en la correlación flexibilidad-fuerza en piernas y pase-conducción del grupo con igualdad numérica. Los jugadores de nivel bajo mostraron cambios significativos positivos en las correlaciones de flexibilidad-fuerza en piernas, flexibilidad-cabeceo y cabeceo-fuerza en piernas. En cambio, los participantes de nivel regular (el más elevado en nuestra investigación) produjeron correlaciones significativas positivas entre golpeo de pierna no dominante-flexibilidad y este mismo golpeo con la resistencia aeróbica en el grupo con igualdad numérica. Por su parte, el grupo con igualdad numérica presentó diferencias significativas entre la fuerza-flexibilidad, velocidad-flexibilidad, pase-flexibilidad, pase-fuerza en piernas, pase-velocidad, pase-resistencia, pase-cabeceo, golpeo-regate, golpeo-conducción y golpeo con pierna no dominante-cabeceo. Conclusión: existe una correlación positiva entre el nivel de pensamiento táctico ofensivo en el fútbol con el desarrollo de las habilidades técnicas y físicas, es decir, mientras mayor sea este nivel, mayores cambios significativos se producirán en sus habilidades.  Abstract. This work aims to evidence the correlation between the level of tactical thinking of the starting level children's football players in improving technical and physical skills. Methodology: 26 eight- and nine-year-old children's football players participated with two groups: one group with numerical inequality and one with equality, both with 13 participants. The two groups were given a battery of physical and technical tests, as well as the test of tactical offensive knowledge in football (TCTOF). The groups were exposed to a 16-session training program. Results: Players at the very low level only showed changes significant negative in the correlation the flexibility and strength of the legs and pass and running of the ball in the group with numerical equality. Low-level players showed significant positive changes in correlations of flexibility and strength in legs, flexibility and heading, and heading and strength in legs. In contrast, regular-level participants (the highest in our research) produced significant positive correlations between shooting the ball with the non-dominant leg and flexibility and this same shooting the ball with the non-dominant leg with the aerobic resistance in the group with numerical equality. For its part, the group with numerical equality presented significant differences between strength and flexibility, speed and flexibility, pass the ball and flexibility, pass the ball and force in legs, pass the ball and speed, pass the ball and resistance, pass and heading the ball, shoot the ball with dominant leg and dribbling, shoot the ball with dominant leg and running with the ball, and heading the ball with shoot the ball non-dominant leg. Conclusion: there is a positive correlation between the level of tactical offensive thinking in football with the development of technical and physical skills, the higher this level, the greater significant changes in your skills.

Perfectionism and Burnout in Sport and Dance

2020 ◽  
Vol 59 (03) ◽  
pp. 135-140
Author(s):  
Marlena Skwiot ◽  
Zbigniew Śliwiński ◽  
Grzegorz Eugeniusz Śliwiński
Keyword(s):  
Chronic Pain ◽  
Musculoskeletal Pain ◽  
Chronic Musculoskeletal Pain ◽  
Soccer Players ◽  
Football Players ◽  
Study Group ◽  
Personal Standards ◽  
Low Level ◽  
Athlete Burnout ◽  
High Level

Abstract Objectives The aim of the present study was to evaluate the interaction between perfectionism and symptoms of burnout in athletes and dancers and examine the influence of chronic musculoskeletal pain on burnout levels. Design Two structured questionnaires were used. Methods We studied a group of 207 athletes and dancers (75 females and 132 males) aged 18-25 years (mean=21.4, SD=2.3). The study group comprised of 82 dancers, 72 football (soccer) players and 53 Kyokushin Karate fighters. The level of perfectionism was evaluated utilising the Sport-Multidimensional Perfectionism Scale-2, and the level of burnout was evaluated with the Athlete Burnout Questionnaire. Results No significant differences between total burnout levels were noted between the dancers (M=2.88, SD=0.45), Kyokushin Karate fighters (M=2.81, SD=0.41) and football players (M=2.93, SD=0.44) (p=0.318). Athletes with a high level of perfectionism who experienced chronic pain had the highest levels of burnout (M=2.37, SD=0.68) compared to those characterised by a low level of perfectionism and experiencing pain and those not in pain. Conclusions The athletes and dancers participating in the study set great store by meeting personal standards, which suggests that their coaches should ensure a high level of efficiency in order to prevent perfectionism contributing to burnout.

Conditions for Positive and Negative Correlations Between Fitness and Heterozygosity in Equilibrium Populations

Genetics ◽  
1998 ◽  
Vol 148 (3) ◽  
pp. 1333-1340 ◽  
Author(s):  
Hong-Wen Deng ◽  
Yun-Xin Fu
Keyword(s):  
Single Population ◽  
Positive Correlation ◽  
Genetic Explanation ◽  
Genetic Causes ◽  
The Past ◽  
Fitness Traits ◽  
Genetic Systems ◽  
Positive Correlations ◽  
Non Equilibrium

AbstractThe past decades have witnessed extensive efforts to correlate fitness traits with genomic heterozygosity. While positive correlations are revealed in most of the organisms studied, results of no/negative correlations are not uncommon. There has been little effort to reveal the genetic causes of these negative correlations. The positive correlations are regarded either as evidence for functional overdominance in large, randomly mating populations at equilibrium, or the results of populations at disequilibrium under dominance. More often, the positive correlations are viewed as a phenomenon of heterosis, so that it cannot possibly occur under within-locus additive allelic effects. Here we give exact genetic conditions that give rise to positive and negative correlations in populations at Hardy-Weinberg and linkage equilibria, thus offering a genetic explanation for the observed negative correlations. Our results demonstrate that the above interpretations concerning the positive correlations are not complete or even necessary. Such a positive correlation can result under dominance and potentially under additivity, even in populations where associated overdominance due to linked alleles at different loci is not significant. Additionally, negative correlations and heterosis can co-occur in a single population. Although our emphasis is on equilibrium populations and for biallelic genetic systems, the basic conclusions are generalized to non-equilibrium populations and for multi-allelic situations.

Is Strategic Planning Worth the Effort? A Study of Firm Performance Versus Planning Comprehensiveness in Australia

2000 ◽  
Vol 6 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Peter Devenish ◽  
Tom Fisher
Keyword(s):  
Strategic Planning ◽  
Financial Performance ◽  
Statistical Tests ◽  
The United States ◽  
Negative Finding ◽  
Positive Correlation ◽  
Listed Firms ◽  
The United Kingdom ◽  
Weak Positive Correlation ◽  
Positive Correlations

AbstractThe planning-performance literature suggests that there is a weak positive correlation between strategic planning and financial performance. This study has been undertaken to determine whether this weak positive correlation is true for Australian firms.Strategic planning for the purposes of this study is arranged in three levels of planning complexity. A sample of 77 listed firms was surveyed to determine their level of planning complexity, and this was correlated with the firm's financial performance over a three year period.A range of statistical tests did not reveal any significant correlation between strategic planning at any of the three levels and the financial performance of the firm. This negative finding is generally in line with other recent studies conducted in Australia, the United States and the United Kingdom.However, positive correlations were found with several subjective performance measures, suggesting that respondents generally believe that strategic planning is helping their company.

Assessing Maximal Sprinting Speed in Highly Trained Young Soccer Players

2012 ◽  
Vol 7 (1) ◽  
pp. 76-78 ◽  
Author(s):  
Martin Buchheit ◽  
Ben M. Simpson ◽  
Esa Peltola ◽  
Alberto Mendez-Villanueva
Keyword(s):  
Soccer Players ◽  
Football Players ◽  
Age Group ◽  
Running Speed ◽  
Main Determinant ◽  
Accurate Evaluation ◽  
Sprint Speed ◽  
Sprinting Speed ◽  
Split Time

The aim of the present study was to locate the fastest 10-m split time (Splitbest) over a 40-m sprint in relation to age and maximal sprint speed in highly trained young soccer players. Analyses were performed on 967 independent player sprints collected in 223 highly trained young football players (Under 12 to Under 18). The maximal sprint speed was defined as the average running speed during Splitbest. The distribution of the distance associated with Splitbest was affected by age (X23 = 158.7, P < .001), with the older the players, the greater the proportion of 30-to-40-m Splitbest. There was, however, no between-group difference when data were adjusted for maximal sprint speed. Maximal sprint speed is the main determinant of the distance associated with Splitbest. Given the important disparity in Splitbest location within each age group, three (U12-U13) to two (U14-U18) 10-m intervals are still required to guarantee an accurate evaluation of maximal sprint speed in young players when using timing gates.

Coach-led preventive training program in youth soccer players improves movement technique

2017 ◽  
Vol 20 (9) ◽  
pp. 861-866 ◽  
Author(s):  
J. Luke Pryor ◽  
Hayley J. Root ◽  
Lesley W. Vandermark ◽  
Riana R. Pryor ◽  
Jessica C. Martinez ◽  
...  
Keyword(s):  
Training Program ◽  
Soccer Players ◽  
Youth Soccer
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