ISOKINETIC STRENGTH AND SPRINT TIMES IN ENGLISH PREMIER LEAGUE FOOTBALL PLAYERS

2011 ◽  
Vol 28 (2) ◽  
pp. 89-94 ◽  
Author(s):  
T COTTE ◽  
J-C Chatard
Keyword(s):  
Football Players ◽  
Isokinetic Strength ◽  
Premier League ◽  
English Premier League

scholarly journals Spikes in acute:chronic workload ratio (ACWR) associated with a 5–7 times greater injury rate in English Premier League football players: a comprehensive 3-year study

2019 ◽  
Vol 54 (12) ◽  
pp. 731-738 ◽  
Author(s):  
Laura Bowen ◽  
Aleksander Stephan Gross ◽  
Mo Gimpel ◽  
Stewart Bruce-Low ◽  
Francois-Xavier Li
Keyword(s):  
Chronic Exposure ◽  
High Speed ◽  
Injury Risk ◽  
Injury Rate ◽  
Football Players ◽  
Low Intensity ◽  
Total Distance ◽  
Premier League ◽  
Z Scores ◽  
English Premier League

ObjectivesWe examined the relation between global positioning system (GPS)-derived workloads and injury in English Premier League football players (n=33) over three seasons.MethodsWorkload and injury data were collected over three consecutive seasons. Cumulative (1-weekly, 2-weekly, 3-weekly and 4-weekly) loads in addition to acute:chronic workload ratios (ACWR) (acute workload (1-week workload)) divided by chronic workload (previous 4-week average acute workload) were classified into discrete ranges by z-scores. Relative risk (RR) for each range was then calculated between injured and non-injured players using specific GPS variables: total distance, low-intensity distance, high-speed running distance, sprint distance, accelerations and decelerations.ResultsThe greatest non-contact injury risk was when the chronic exposure to decelerations was low (<1731) and the ACWR was >2.0 (RR=6.7). Non-contact injury risk was also 5–6 times higher for accelerations and low-intensity distance when the chronic workloads were categorised as low and the ACWR was >2.0 (RR=5.4–6.6), compared with ACWRs below this. When all chronic workloads were included, an ACWR >2.0 was associated with a significant but lesser injury risk for the same metrics, plus total distance (RR=3.7–3.9).ConclusionsWe recommend that practitioners involved in planning training for performance and injury prevention monitor the ACWR, increase chronic exposure to load and avoid spikes that approach or exceed 2.0.

Functional Movement Screen (FMS™) score does not predict injury in English Premier League youth academy football players

2017 ◽  
Vol 1 (2) ◽  
pp. 102-106 ◽  
Author(s):  
Florence Newton ◽  
Alan McCall ◽  
Desmond Ryan ◽  
Colin Blackburne ◽  
Karen aus der Fünten ◽  
...  
Keyword(s):  
Football Players ◽  
Functional Movement Screen ◽  
Functional Movement ◽  
Premier League ◽  
English Premier League

The Football Team Composition Problem: a Stochastic Programming approach

2017 ◽  
Vol 13 (3) ◽  
pp. 113-129 ◽  
Author(s):  
Giovanni Pantuso
Keyword(s):  
Programming Approach ◽  
Football Players ◽  
Steady Growth ◽  
Premier League ◽  
Football Team ◽  
Composition Problem ◽  
Football Clubs ◽  
European Football ◽  
English Premier League

Abstract Most professional European football clubs are well-structured businesses. Therefore, the financial performance of investments in players becomes crucial. In this paper, after the problem is discussed and formalized, an optimization model with the objective of maximizing the expected value of the team is presented. The model ensures that the team has the required mix of skills, that competition regulations are met, and that budget limits are respected. The model explicitly takes into account the uncertainty in the career development of football players. A case study based on the English Premier League is presented. Our results show that the model has significant potential to improve current decisions ensuring a steady growth of the value of the team. The team value growth reported is particularly driven by investments in young prospects.

scholarly journals A comparison of hip adduction to abduction strength ratios, in the dominant and non-dominant limb, of elite academy football players

2015 ◽  
Vol 2 (1) ◽  
pp. 109 ◽  
Author(s):  
Victoria C. Griffin ◽  
Tony Everett ◽  
Ian G. Horsley
Keyword(s):  
Injury Risk ◽  
Football Players ◽  
Isokinetic Dynamometer ◽  
Treatment And Prevention ◽  
Risk Of Injury ◽  
Premier League ◽  
Left Limb ◽  
Baseline Values ◽  
English Premier League ◽  
Abduction Strength

Context: Hip adduction and abduction strength plays an important role in the treatment and prevention of groin injuries in football players. Currently there are no reliable baseline values for uninjured football player’s hip adduction: abduction muscle strength ratios. Objective: To examine whether normal hip adduction: abduction strength ratios can be established in uninjured football players.  To compare this data, and establish if there is an asymmetry between the dominant and non-dominant limb. Methods: Twenty, English Premier League academy football players 18.45 (± 2.06) years, 72.6 (± 5.56) kg, 180.15 (± 7.97) cm, 3 left limb dominant, and 17 right limb dominant were included in the study. Eccentric and concentric hip adduction and abduction strength of the dominant and non-dominant leg was tested using a Cybex isokinetic dynamometer. Results: The concentric ratio on the dominant limb was 1.59 (± 0.19) and on the non-dominant limb 1.45 (± 0.31).  The eccentric ratio on the dominant limb was 1.45 (± 0.32) and on the non-dominant limb 1.26 (± 0.26).  Overall the ratios were higher on the dominant limb and this was statistically significant P ≤ .05. Abduction strength was similar bilaterally.  Adduction strength was 18%-22% greater on the dominant limb. Conclusions: The greater ratios on the dominant limb are due to increased adductor strength as a result of the kicking action. Elite football player’s hip adduction: abduction strength ratios should be 1.45-1.6 on the dominant limb and 1.25-1.45 on the non-dominant limb. The adductors on the dominant limb should be 18%-22% stronger than the non-dominant limb. Ratios outside these parameters could indicate the player is at risk of injury. Further research is required to support muscle imbalance as a cause of injury and identify injury risk thresholds for groin injuries in football players. 

scholarly journals Organization of sports selection in the system of youth and professional english football

2021 ◽  
pp. 60-65
Author(s):  
Andriy Dulibskyy
Keyword(s):  
Methodological Approach ◽  
Age Groups ◽  
Football Players ◽  
System Support ◽  
Professional Football ◽  
Educational Training ◽  
Premier League ◽  
Football Clubs ◽  
English Premier League ◽  
Sports Selection

The article is devoted to the study of the peculiarities of the organization and conduct of the process of sports selection in youth and professional football in England. The main scientific and methodological approaches of software and system support of the process of sports selection in youth and professional football in England are analysed. The program of the English Football Association "Talent pathway" (in the Ukrainian edition - "Шлях таланту") is presented in detail. The essence of this program is that due to participation in the program in special "Regional Talent Camps" and "National Talent Camps" thoughtful and in-depth selection and sports training are young football players aged 7 to 16 years. The program of the English Premier League "Premier League Primary Stars" has been studied. We believe that a certain selective broadcast of the English system of organization and conduct of the process of sports selection and selection in youth and professional football is possible in terms of the model of functioning and improvement of youth football schools and football clubs of Ukraine. Scientific and practical approaches to the organization and conduct of educational, training and competitive forms of sports selection and orientation in the age groups "U 10" (children under 10 years) and "U 12" (children under 12 years) are analysed. The system of organization of competitions in age groups "U 14" (teenagers under 14 years) and "U 16" (boys under 16 years) is studied. Such a scientific and methodological approach can provide an opportunity to effectively integrate domestic football to the best examples of European and world sport of excellence, which are competitions under the auspices of FIFA and UEFA.

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