scholarly journals Does facial width-to-height ratio predict Japanese professional football players’ athletic performance?

2016 ◽  
Vol 7 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Takayuki Fujii ◽  
Akira Goto ◽  
Haruto Takagishi
Keyword(s):  
Aggressive Behavior ◽  
Athletic Performance ◽  
Football Players ◽  
Professional Football ◽  
Height Ratio ◽  
Testosterone Levels ◽  
The Relationship

A number of studies have shown that facial width-to-height ratio (fWHR)—the distance between the two zygomatic arches (width) compared with the distance from the top of the lip to the bottom of the eyebrows (height)—is related to aggressive behavior and is reflective of testosterone levels. The purpose of this study was to examine the relationship between fWHR and the athletic performance of Japanese professional football players. Photographs of 343 Japanese professional football players were measured for fWHR and compared with the number of penalty cards (yellow and red) acquired by players and goals scored in the 2012 season. The results showed that fWHR was not associated with the number of goals scored in any football position. However, the number of penalty cards acquired was associated with fWHR in the forward offensive position. These findings showed that fWHR is not related to goals scored by Japanese football players, but is related to the penalty cards acquired in the offensive domain.

scholarly journals FINANCIAL VALUE OF UKRAINIAN PREMIER LEAGUE CLUBS IN RELATIONSHIP WITH FOOTBALL MIGRATION INDICATORS

2021 ◽  
Vol 6 (2) ◽  
pp. 184-195
Author(s):  
Sobol Eduard ◽  
Svatyev Andrii
Keyword(s):  
Football Players ◽  
Professional Football ◽  
Premier League ◽  
Linear Relationships ◽  
Football Clubs ◽  
Economic Support ◽  
And Migration ◽  
Quantitative Indicators ◽  
The Relationship ◽  
Generalization Of Data

Introduction. Indicators of financial and economic support and migration of football players create preconditions for the formation of a highly competitive sports environment in professional football clubs and in the Ukrainian Premier League. The aim of the study is to analyze the quantitative indicators of migration of football players in the Ukrainian Premier League in relation to the financial and economic support of professional football clubs and to systematize the results. Materials and methods: analysis and generalization of data of scientific and methodical literature sources and the Internet, pedagogical observations, content analysis of materials of official sites of professional football clubs of the Ukrainian Premier League, official sites of the Ukrainian Football Association and the Ukrainian Premier League, methods of mathematical statistics. Results. The relationship between the financial value of Ukrainian athletes and migrant footballers, who are declared in the competition of the Ukrainian Premier League of the season 2021-2022, is analyzed. Conclusions. Analysis of the financial value of professional football clubs of the Ukrainian Premier League in relation to the migration of football players allows us to state that the leaders of the sports rating are the most financially capable teams: «Shakhtar» (Donetsk) and «Dynamo» (Kyiv), with a total the transfer value of the players is € 179,700,000 and € 136,100,000 respectively. The average cost of a migrant player in the leading professional football clubs of the Ukrainian Premier League «Shakhtar» (Donetsk) is 8,800,000 €, «Dynamo» (Kyiv) ‒ 3,420,000 €. Analysis of the transfer value of domestic athletes and migrant footballers in the application letters of the Ukrainian Premier League shows the absence of direct and inverse linear relationships, which suggests the presence of complex multilevel dependencies that require processing by more complex mathematical and statistical methods and preliminary grouping of available experimental data

scholarly journals The Impact of Circadian Misalignment on Athletic Performance in Professional Football Players

SLEEP ◽  
2013 ◽  
Vol 36 (12) ◽  
pp. 1999-2001 ◽  
Author(s):  
Roger S. Smith ◽  
Bradley Efron ◽  
Cheri D. Mah ◽  
Atul Malhotra
Keyword(s):  
Athletic Performance ◽  
Football Players ◽  
Professional Football ◽  
Circadian Misalignment ◽  
The Impact

Knowledge transfer in the football industry: a sectorial analysis of factors and determinants

2020 ◽  
Vol 58 (9) ◽  
pp. 1909-1927 ◽  
Author(s):  
Rosa Lombardi ◽  
Raffaele Trequattrini ◽  
Benedetta Cuozzo ◽  
Paola Paoloni
Keyword(s):  
Knowledge Transfer ◽  
Knowledge Translation ◽  
Football Players ◽  
Professional Football ◽  
Content Type ◽  
Sectorial Analysis ◽  
Knowledge Intensive Organizations ◽  
Knowledge Intensive ◽  
Football Industry ◽  
The Relationship

PurposeOver recent decades, knowledge transfer processes and knowledge-intensive organizations have been increasingly investigated from several perspectives. Knowledge translation activated by knowledge-intensive organizations is supported by several factors, among which intangible assets play a significant role. Our research mainly investigates the relationship between the knowledge owned by knowledge workers in source organizations and the process of its translation to recipient organizations. Specifically, this paper aims at analyzing knowledge translation and organizational performance in the football industry, uncovering both the role of professional football players' skills transfer and the determinants of achieving positive performance at the organizational level.Design/methodology/approachA quantitative method is adopted, using both bivariate linear regression analysis and network analysis. Using key aspects of Nakauchi et al.'s (2007) knowledge transfer framework, intra-organizational dynamics are analyzed based on measurements of the performance of professional football players before and after transferring from one club (the source organization) to another (the recipient organization).FindingsOur research results are mainly intended to show the factors that influence knowledge translation in the light of team performance improvement. Our empirical analysis shows the need for the coexistence of a combination of factors, especially the quality of the source and recipient organizations and of the relationship between them, to achieve the transferability of professional football players' capabilities and performance.Practical implicationsThe academic community, practitioners and policymakers can draw on the theoretical and practical advances made by the findings to address knowledge translation issues with an improved understanding of its factors and determinants.Originality/valueDespite some limitations to the study, we identify the factors, determinants and contexts that facilitate the transfer of knowledge and specialist knowledge and thus contribute to the successful operation of contemporary organizations. Moreover, the results of our analysis are applicable to all economic sectors.

The relationship between bullying and burnout

2015 ◽  
Vol 5 (1) ◽  
pp. 6-20 ◽  
Author(s):  
Süleyman Murat Yildiz
Keyword(s):  
Individual Performance ◽  
Three Dimensions ◽  
Football Players ◽  
Professional Football ◽  
Negative Consequences ◽  
Validity And Reliability ◽  
Content Type ◽  
Study Results ◽  
The Relationship ◽  
Negative Acts

Purpose – The purpose of this paper is to investigate the relationship between bullying and burnout and its effect on professional football players. Although the effects of both bullying and burnout have been studied in different contexts, the effects of these constructs have not been fully examined among professional football players in culturally different environments. Design/methodology/approach – To measure bullying, the authors used a modified version of the Negative Acts Questionnaire-Revised (NAQ-R) adapted to the professional football environment. To measure burnout, we used Raedeke and Smith’s (2001) “Athlete Burnout Questionnaire”. Data for the study (n=102) were collected from the professional football players in the Turkish Secondary Football League. Explatory and confirmatory analysis were performed for validity and reliability of the questionnaires. Correlations and hierarchical regression analysis were performed for data. Findings – Our findings showed that bullying influenced all three dimensions of burnout (reduced sense of accomplishment, emotional/physical exhaustion, and devaluation), particularly the emotional/physical exhaustion. High levels of burnout that the victims might experience because of bullying may reduce individual performance as well as team performance. Furthermore, higher levels of burnout contribute to attrition (losing a well-performing player prematurely), which could have a significant effect on team’s overall performance and competitiveness. Originality/value – This study utilized the “Negative Acts Questionnaire-Football (NAQ-F)” adapted from the “Negative Acts Questionnaire-Revised (NAQ-R)”. Using NAQ-F, this study tested the relationship between bullying and burnout and its effect on professional football players. The study results showed that to reduce the negative consequences of potential bullying behaviour on players and teams, high-performing professional football clubs should develop social networks and mechanisms to minimize the effects of such behaviours and/or provide the needed support to the victims, as needed.

scholarly journals Relationships between Vitamin D and Selected Cytokines and Hemogram Parameters in Professional Football Players—Pilot Study

2021 ◽  
Vol 18 (13) ◽  
pp. 7124
Author(s):  
Anna Książek ◽  
Aleksandra Zagrodna ◽  
Anna Bohdanowicz-Pawlak ◽  
Felicja Lwow ◽  
Małgorzata Słowińska-Lisowska
Keyword(s):  
Vitamin D ◽  
Serum Levels ◽  
Significant Negative Correlation ◽  
Vitamin D Insufficiency ◽  
Football Players ◽  
Professional Football ◽  
Innate And Adaptive Immunity ◽  
Vitamin D Levels ◽  
Tnf Α ◽  
The Relationship

Vitamin D affects both innate and adaptive immunity. Most of the effects of vitamin D on innate immunity are anti-inflammatory. In monocytes/macrophages, vitamin D suppresses the production of the inflammatory cytokines TNF-alpha, IL-1beta, IL-6, and IL-8. Therefore, the aim of our study was to investigate the relationship between 25(OH)D concentration and selected cytokines—IL-6, TNF-α, and IL-1β, which are hemogram parameters for professional football players. We enrolled 41 Polish premier league soccer players. The mean age, career duration, and VO2max were, respectively: 22.7 ± 5.3 years, 14.7 ± 4.5 years, and 55.8 ± 4.0 mL/kg/min. Serum levels of 25(OH)D were measured by electrochemiluminescence (ECLIA) using the Elecsys system (Roche, Switzerland). Serum levels of IL-6, IL-1β, and TNF-α were measured by ELISA (R&D Systems, Minneapolis). Blood count with smear was measured on a Sysmex XT-4000i analyzer (Sysmex Corporation, Japan). Our study showed decreased serum 25(OH)D levels in 78% of the professional players. We found a significant negative correlation between 25(OH)D levels and TNF-α and LYMPH (%). The results also demonstrated a statistically significant positive correlation between vitamin D levels and NEUTH (%), NEUTH (tys/µL), and EOS (tys/µL). Based on the results of our study, we concluded that football players from Poland are not protected against vitamin D insufficiency in winter months. Moreover, vitamin D deficiency may be associated with an increased pro-inflammatory risk in well-trained athletes.

scholarly journals Talent development environment in a professional football club in Norway

2020 ◽  
Vol 2 ◽  
pp. 8-15
Author(s):  
Georg Flatgård ◽  
Carsten Hvid Larsen ◽  
Stig Arve Sæther
Keyword(s):  
Talent Development ◽  
Team Development ◽  
Ecological Approach ◽  
Football Players ◽  
Professional Football ◽  
Development Environment ◽  
Football Club ◽  
The Everyday ◽  
The Individual ◽  
The Relationship

The research on talent development is increasing, even though most of it has focused on the individual athlete. By using a holistic and ecological approach to talent development and especially the players’ environment, one could highlight how the environment facilitates player and team development. The purpose of this study was to analyse the recruit team of the professional football club Ranheim F.C. in Norway. Principal methods of data collection included interviews, participant observations of life in the environment, and analysis of documents. The environment was centred around the relationship between coaches and players, and although the supporting staff was relatively small, the inclusive and supportive approach from competent coaches was essential. The characteristics of the environment included that players were encouraged to take responsibility for their own development, exercise self-reflexiveness and the ability to handle the challenges that may arise in the life of young football players, and optimize the everyday lives of the players. Despite economic challenges within the club, the environment compensated with spirit, volunteerism, and hard work.

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