scholarly journals The Effects of Differential Learning and Traditional Learning Trainings on Technical Development of Football Players

2018 ◽  
Vol 6 (4a) ◽  
pp. 25
Author(s):  
Sinan Bozkurt
Keyword(s):  
Skill Acquisition ◽  
Selection Process ◽  
Paired Comparison ◽  
Wilcoxon Test ◽  
Technical Development ◽  
Football Players ◽  
Learning Approach ◽  
Differential Learning ◽  
Football Field ◽  
Methods Of Learning

There are several different methods of learning motor skills, like traditional (linear) and differential (nonlinear) learning training. The traditional motor learning approach proposes that learners improve a skill just by repeating it. According to the teaching principles, exercises are selected along continua from easy to hard and from simple to complex.  The differential learning approach is mainly characterized by taking advantage, for the purpose of learning, of fluctuations that occur, without movement repetitions and without corrections during the skill acquisition process. The purpose of this study is to examine the effects of differential and traditional training on technical development of 15-year-old football players who have been continuing football education. Twelve (12) football players who were 15 years old from the youth football team (Under 15) of Istanbul Kavacik Club were tested voluntarily in this study. In this study, the Mor-Christian soccer passing test, German Football Association agility/dribbling test, and feet-juggling test were applied on the football field with synthetic grass of the Istanbul Kavacik Sports Club in 2016. The Mann-Whitney U test for paired comparison of the groups and the Wilcoxon test for the comparison of pre- and post-tests of the groups were used for statistical analyses. In conclusion, the findings suggest that the results of the technique tests for groups offer no clear evidence for the superiority of the differential learning approach in comparison to the classical training approach. However, participants of the Differential Group (DG) were able to improve their performance in all tests and techniques compared to those of the Classical Group (CG). These findings may be useful for trainers and physical education teachers in the selection process of players and in preparing football training programs.

Impact of a Differential Learning Approach on Practical Exam Performance: A Controlled Study in a Preclinical Dental Course

2017 ◽  
Vol 81 (9) ◽  
pp. 1108-1113 ◽  
Author(s):  
Sven-Olav Pabel ◽  
Anne-Kathrin Pabel ◽  
Jan Schmickler ◽  
Xenia Schulz ◽  
Annette Wiegand
Keyword(s):  
Controlled Study ◽  
Exam Performance ◽  
Learning Approach ◽  
Differential Learning ◽  
Practical Exam

scholarly journals Application of FURIA for Finding the Faults in a Hydraulic Brake System Using a Vibration Analysis through a Machine Learning Approach

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Alamelu Manghai T. M ◽  
Jegadeeshwaran R
Keyword(s):  
Machine Learning ◽  
Fault Diagnosis ◽  
Decision Tree ◽  
Continuous Monitoring ◽  
Selection Process ◽  
Brake System ◽  
Learning Approach ◽  
Vibration Signals ◽  
Hydraulic Brake ◽  
Machine Learning Approach

Vibration-based continuous monitoring system for fault diagnosis of automobile hydraulic brake system is presented in this study. This study uses a machine learning approach for the fault diagnosis study. A hydraulic brake system test rig was fabricated. The vibration signals were acquired from the brake system under different simulated fault conditions using a piezoelectric transducer. The histogram features were extracted from the acquired vibration signals. The feature selection process was carried out using a decision tree. The selected features were classified using fuzzy unordered rule induction algorithm ( FURIA ) and Repeated Incremental Pruning to Produce Error Reduction ( RIPPER ) algorithm. The classification results of both algorithms for fault diagnosis of a hydraulic brake system were presented. Compared to RIPPER and J48 decision tree, the FURIA performs better and produced 98.73 % as the classification accuracy.

scholarly journals A Machine Learning Approach to Assess Injury Risk in Elite Youth Football Players

2020 ◽  
Vol 52 (8) ◽  
pp. 1745-1751 ◽  
Author(s):  
NIKKI ROMMERS ◽  
ROLAND RÖSSLER ◽  
EVERT VERHAGEN ◽  
FLORIAN VANDECASTEELE ◽  
STEVEN VERSTOCKT ◽  
...  
Keyword(s):  
Machine Learning ◽  
Injury Risk ◽  
Football Players ◽  
Learning Approach ◽  
Youth Football ◽  
Machine Learning Approach

scholarly journals Biomechanic and physiological factors providing the technique of goal-oriented shot actions in football

2009 ◽  
Vol 8 (3) ◽  
pp. 53-57
Author(s):  
Ye. V. Koshelskaya ◽  
V. N. Bazhenov ◽  
O. I. Buravel ◽  
L. V. Kapilevich ◽  
V. I. Andreyev
Keyword(s):  
Basic Skills ◽  
Visual Control ◽  
Technical Development ◽  
Football Players ◽  
Visual Analyzer ◽  
Physiological Factors ◽  
Equilibrium Control ◽  
Equilibrium Function

Biomechnic peculiarities of the technique of shots in football have been studied. With the aid of electromyography and stabilography, 45 men aged from 18 to 27 were examined. It has been shown that stabilographic and electromyographic characteristics of ball shooting can serve indicators of technical development of sportsmen. The technique of direct kick is formed at the stage of perfection of basic skills, while that of lateral kicks is formed at the stage of top sport mastering. In football players of high qualification, the role of the visual analyzer in equilibrium control is insignificant, while in low- and moderate-qualified players, the equilibrium function works worse without visual control.

Assessment of Posterior and Middle Facet Subluxation of the Subtalar Joint in Progressive Flatfoot Deformity

2020 ◽  
Vol 41 (10) ◽  
pp. 1190-1197 ◽  
Author(s):  
Cesar de Cesar Netto ◽  
Thiago Silva ◽  
Shuyuan Li ◽  
Nacime Salomao Mansur ◽  
Elijah Auch ◽  
...  
Keyword(s):  
Prediction Model ◽  
Subtalar Joint ◽  
Paired Comparison ◽  
Intraclass Correlation ◽  
Fold Increase ◽  
Wilcoxon Test ◽  
Bivariate Analysis ◽  
Foot And Ankle ◽  
Level Of Evidence ◽  
Spearman’S Correlation

Background: Adult acquired flatfoot deformity (AAFD) is a complex 3-dimensional pathology characterized by peritalar subluxation (PTS) of the hindfoot. For many years, PTS was measured at the posterior facet of the subtalar joint. More recently, subluxation of the middle facet has been proposed as a more accurate and reliable marker of symptomatic AAFD, enabling earlier detection. The objective of this study was to compare the amount of subluxation between the medial and posterior facets in patients with AAFD. Methods: In this institutional review board-approved retrospective comparative study, a total of 76 patients with AAFD (87 feet) who underwent standing weightbearing computed tomography (WBCT) as a standard baseline assessment of their foot deformity were analyzed. Two blinded fellowship-trained orthopedic foot and ankle surgeons with >10 years of experience measured subtalar joint subluxation (as a percentage of joint uncoverage) at the both posterior and middle facets. One of the readers also measured the foot and ankle offset (FAO). PTS measurements were performed at the sagittal midpoint of the articular facets using coronal plane WBCT images. Intra- and interobserver agreement was measured for PTS measurements using the intraclass correlation coefficient (ICC). The intermethod agreement between the posterior and middle facet subluxation was assessed using Spearman’s correlation and bivariate analysis. Paired comparison of the measurements was performed using the Wilcoxon test. A multivariate analysis and a partition prediction model were used to assess influence of PTS measurements on FAO values. P values of <.05 were considered significant. Results: ICCs for intra- and interobserver reliabilities were 0.97 and 0.93, respectively, for posterior and 0.99 and 0.97, respectively, for middle facet subluxation. The intermethod Spearman’s correlation between subluxation of the posterior and middle facets was measured at 0.61. In a bivariate analysis, both measurements were found to be significantly and linearly correlated ( P < .0001; R2 = 0.42). Measurements of middle facet subluxation were found to be significantly higher than those for posterior facet subluxation, with a median difference (using the Hodges-Lehman factor) of 17.7% ( P < .001; 95% CI, 10.9%-23.6%). We also found that for every 1% increase in posterior facet subluxation there was a corresponding 1.6-fold increase in middle facet subluxation. Only middle facet subluxation measurements were found to significantly influence FAO calculations ( P = .003). The partition prediction model demonstrated that a middle facet subluxation value of 43.8% represented an important threshold for increased FAO. Conclusion: This study is the first to compare WBCT measurements of subtalar joint subluxation at the posterior and middle facets as markers of PTS in patients with AAFD. We found a positive linear correlation between the measurements, with subluxation of the middle facet being significantly more pronounced than that of the posterior facet by an average of almost 18%. This suggests that middle facet subluxation may provide an earlier and more pronounced marker of progressive PTS in patients with AAFD. Level of Evidence: Level III, retrospective comparative cohort study.

scholarly journals COMPARISON OF THE PERFORMANCE VALUES OF THE U-16 DEVELOPMENT LEAGUE FOOTBALL PLAYERS IN THE COMPETITION PERIOD

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
Mahmut Kurtay ◽  
Zafer Bilgin ◽  
Murat Taş
Keyword(s):  
Heart Rate ◽  
Training Program ◽  
Heart Rate Recovery ◽  
Football Players ◽  
Maximal Heart Rate ◽  
Tests And Measurements ◽  
Football Team ◽  
Recovery Times ◽  
Competition Period ◽  
Football Field

This study aims to compare the performance values of U-16 development league football players. The research was carried out according to the experimental research model. A total of 25 football players of a super league football team (age: 16, height: 170,36±7,31cm, weight: 56,89±8,88kg), all competing in the U-16 elite development league, participated voluntarily. The players wear Polar watches on the grass football field; Yo-Yo Intermittent Recovery Level 1 test was applied and aerobic endurance levels, maximal heart rate, and heart rate recovery times were measured. Tests and measurements were applied 1 week before the start of the league. After the first test, the competition period general training program was applied for 9 weeks, 4 days a week, and after that, the same tests and measurements were carried out again. After a 9-week competition training program, there were statistically significant differences in aerobic endurance levels and heart rate recovery times at the 1st minute (p<0.01), no statistically significant differences were found in maximal heart rate and heart rate recovery times at the 2nd minute (p>0.01). In conclusion, it can be said that the 9-week training program applied during the competition period is effective on the aerobic endurance level and heart rate recovery time in the 1st minute. <p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0893/a.php" alt="Hit counter" /></p>

scholarly journals The Poor “Wealth” of Brazilian Football: How Poverty May Shape Skill and Expertise of Players

2021 ◽  
Vol 3 ◽  
Author(s):  
Luiz Uehara ◽  
Mark Falcous ◽  
Chris Button ◽  
Keith Davids ◽  
Duarte Araújo ◽  
...  
Keyword(s):  
Skill Acquisition ◽  
Economic Status ◽  
Sports Participation ◽  
Well Being ◽  
Urban Environments ◽  
Football Players ◽  
Cultural Economic ◽  
Economic Constraints ◽  
Gain Access

Worldwide, 1.3 billion people live in Poverty, a socio-economic status that has been identified as a key determinant of a lack of sports participation. Still, numerous athletes around the world have grown up in underprivileged socio-economic conditions. This is the case in Brazil, a country with around 13.5 million impoverished citizens, yet, over decades, many of its best professional footballers have emerged from its favelas. In this article, we explore the role of the socio-cultural-economic constraints in shaping the development of skill and expertise of Brazilian professional football players. The methodological and epistemological assumptions of the “Contextualized Skill Acquisition Research” (CSAR) approach are used as an underpinning framework for organizing and analyzing data. Results suggested that, at the exosystemic level of Brazilian society, Poverty emerges as an influential constraint that can potentially enrich football development experiences of Brazilian players. Poverty, however, is not the direct causation of outstanding football skill development. Rather, from the perspective of ecological dynamics, Poverty creates specific contexts that can lead to the emergence of physical as well as socio-cultural environment constraints (e.g., Pelada, Malandragem) that can shape affordances (opportunities) for skill acquisition. These ideas suggest the need to ensure that environmental constraints can support people to amuse themselves cheaply, gain access to employment opportunities and maintain health and well-being through (unstructured and more structured) sport and physical activities in dense urban environments such as favelas, inner city areas, and banlieues. For this purpose, design of open play areas and even parkour installations can provide affordances landscapes for physical activity and sports participation in urban settings.

scholarly journals Pipelines on the Gridiron: Player Backgrounds, Opportunity Structures and Racial Stratification in American College Football

2019 ◽  
Author(s):  
Kyle Siler
Keyword(s):  
High School ◽  
Demographic Data ◽  
Football Players ◽  
Leadership Positions ◽  
Racial Stratification ◽  
Opportunity Structures ◽  
To Come ◽  
Football Field ◽  
College Team ◽  
Stereotypical Roles

Stacking – the tendency of playing positions to be racially segregated in sports – remains prominent in gridiron football. This raises questions of how stacking persists and how opportunities arise for athletes of different races to assume different roles. Demographic data on 41,484 NCAA football players reveal differences in opportunities and playing roles for student-athletes of different races. In concert with previous racial stacking studies, white players continue to be overrepresented in central, leadership positions. Racial minorities are overrepresented in peripheral ‘skill’ positions. Stacking at each playing position is affected differently by the demographics of player high schools and college teams. Players assuming non-stereotypical roles are much more likely to come from a racially homogenous high school or college team. Even though racially homogenous schools provide stereotype-defying opportunities, they also exhibit intense racial stacking. The few white (or black) players on such teams are overwhelmingly slotted into stereotypical positions. Since stereotype-defying opportunities tend to emerge in racially homogenous schools, blacks playing typically white positions come from relatively poor schools. In contrast, whites playing typically black positions are relatively affluent, since such opportunities tend to emerge in whiter, wealthier schools. Implications for student opportunities and talent inculcation beyond the football field are discussed.

Effects of coordination training on the technical development in 10-/13-year-old football players

2021 ◽  
Vol 61 (4) ◽  
Author(s):  
Mustafa KÖKSAL ◽  
Gazanfer K. GÜL ◽  
Murat DOĞANAY ◽  
Cristina ÁLVAREZ-GARCÍA
Keyword(s):  
Technical Development ◽  
Football Players ◽  
Coordination Training
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