Kinematic and kinetic analysis of the goalkeeper’s diving save in football

Kinetics and full body kinematics were measured in ten elite goalkeepers diving to save high and low balls at both sides of the goal, aiming to investigate their starting position, linear and angular momentum, and legs' contribution to end-performance. Our results showed that goalkeepers adopted a starting position with a stance width of 33 ± 1% of leg length, knee flexion angle of 62 ± 18° and hip flexion angle of 63 ± 18°. The contralateral leg contributed more than the ipsilateral leg to COM velocity (p < 0.01), both for the horizontal (2.7 ± 0.1 m·s^?1 versus 1.2 ± 0.1 m·s^?1) and for the vertical component (3.1 ± 0.3 m·s^?1 versus 0.4 ± 0.2 m·s^?1). Peak horizontal and peak angular momenta were significantly larger (p < 0.01) for low dives than for high dives with a mean difference of 55 kg·m·s^?1 and 9 kg·m²·s^?1, respectively. In addition, peak vertical momentum was significantly larger (p < 0.01) for high dives with a mean difference between dive heights of 113 kg·m·s^?1. Coaches need to highlight horizontal lateral skills and exercises (e.g. sideward push-off, sideward jumps), with emphasis on pushing-off with the contralateral leg, when training and assessing goalkeeper’s physical performance.     

Injury prediction in veteran football players using the Functional Movement Screen™

ABSTRACT

The Functional Movement Screen? (FMS?) is aimed at assessing fundamental movements and is often used to identify players’ injury risk. The purpose of this study was to determine whether the FMS? can be used to predict injuries in veteran footballers (aged > 32 years). Eighteen veteran football teams (n = 238) were recruited and prospectively followed for 9 months. The players (44 ± 7 years; 178 ± 7 cm, 84 ± 11 kg) performed the FMS? at the start of the study period. Players’ exposure hours and injuries were recorded. The difference of FMS? overall score between injured and uninjured players was not significant (11.7 ± 2.9 vs 12.2 ± 2.8 points; Mann-Whitney U-test P = 0.17). Players scoring <10 (score < 1 standard deviation [SD]) below the mean) had a significantly higher injury incidence (z-statistics P < 0.05) compared to an intermediate reference group (mean ± 1 SD; scores of 10–14). No lower injury incidence for players with scores of >14 (score > 1 SD above the mean) was found. Further analyses of potential risk factors suggest higher age, lower body mass and a longer football career to be risk factors for injuries. The findings of this study suggest that the suitability of the FMS? for injury prediction in veteran footballers is limited.     

‘Pressure to play?’ A sociological analysis of professional football managers’ behaviour towards injured players

Drawing upon figurational sociology, this paper examines professional football managers’ attitudes towards injured players. Following interviews with 10 managers, as with previous research, we found that managers have an expectancy that players are rarely fully fit. Players were stigmatized when they were seemingly unwilling to play when a manager encouraged them to. However, we also found that many managers shaped, in part, by their habitus formed from their own experiences as a player, showed greater empathy towards injured players. Many claimed they would not risk the long-term health of players, although at times, managers at the lower levels felt more constrained to take certain risks. We argue this is an unintended outcome of the increasing pressures on managers to succeed with smaller squads. The increasing emphasis and reliance on ‘sport science’ enabled managers at the higher levels to have a more supportive approach to managing injuries not previously identified in existing literature.     

An exploration of young professional football players’ perceptions of the talent development process in England

The identification and development of players in English professional football has become an increasingly significant topic of debate given the historical perceived underperformance of the English national team at international tournaments. To enhance understanding of the challenges and barriers experienced by English youth footballers, the authors explore the developmental experiences of English professional football players from different levels of the English football pyramid. Professional players (N = 11) from football clubs in the top four professional divisions in England took part in individual semi-structured interviews, which were analysed inductively using thematic analysis. The data revealed three interrelated themes that were perceived to mediate player identification and development pathways at professional clubs. Pathways for young players to progress and experience first-team competitive football differed when the level of the league that the players operated within was considered, with significant issues also raised relating to the suitability of the under 21 league structure, the importance attached to the educational welfare of young players, and variations in the identification of player attributes. This study sheds new light on the priorities and processes of talent development and education provision in English football.     

Effects of pitch spatial references on players’ positioning and physical performances during football small-sided games

The aim of this study was to identify the effects of adding spatial references during football small-sided games in youth players’ tactical and physical performance. Twelve under-15 players performed a Gk+ 6v6+ Gk game under two playing conditions: (i) without spatial references (CONTROL condition); (ii) with spatial references, by dividing equally the pitch into three corridors and three sectors (experimental situation, LINES). Players’ positional data was used to compute time-motion and tactical-related variables. The results revealed that performance under LINES situation increased the regularity in the zones occupied (~14%, Cohen’s d: 0.5; ±0.3; p = 0.003) and in the distance between teammates’ dyads (~19%, 0.9; ±0.2; p < 0.001). Oppositely, LINES condition decreased the longitudinal synchronization of players’ displacements (0.4; ±0.2; p = 0.002), players’ average speed (0.5; ±0.3; p = 0.002) and distance covered at lower (0.9; ±0.3; p < 0.001) and moderate speed (0.5; ±0.3; p < 0.001). Adding spatial references seems to promote a more structured pattern of play and increase positional regularity. However, coaches should be aware that this constraint may decrease the synchronization between players. Overall, these findings may be generalized to most invasion team sports.     

A Bourdieusian analysis of cultural reproduction: socialisation and the ‘hidden curriculum’ in professional football

This article draws on the theoretical concepts of Pierre Bourdieu to provide an explanatory account of how socialisation and the hidden curriculum within coaching practice contribute toward the formation of social identities and powerful schemes of internalised dispositions. Drawing on a 10 month ethnography within professional football, the research found that day-to-day practice was ideologically laden and served the production, reproduction and incorporation of socialised agents into the prevailing ‘legitimate’ culture. The legitimacies embodied included respect for authority, hierarchical awareness, control, obedience, collectivity, work ethic and winning.     

The ‘aggressive style’: genesis of an ambiguous resource for Swiss hockey and football players

In this study, we investigated what drives players to endorse an aggressive style in Swiss ice hockey and football. We selected a sample of 16 players on the basis of their penalty statistics. We used semi-directed retrospective interviews to collect players’; biographic narratives. The results show a socialization process into an aggressive style, supported by the dominant gender and socialization norms of the sport, which is under the influence of the structure of the sports organization. However, there are large differences between players, with only some of them adopting an aggressive style. Although many studies have underlined the influence of moral disengagement, the present results suggest that time also matters and that the diversity of career paths may explain the diversity in attitudes. Socialization differences in the sports field, bodily capital, a career path marked by thwarted reputation are the key factors that drive players to adopt an aggressive style.     

From childhood to senior professional football: elite youth players’ engagement in non-football activities

Abstract

Despite the large amount of research available on how engagement in football practice relates to future performance level among football players, similar information about the contribution of non-football activities is scarce. Based on data from 745 elite youth players this study aimed to identify the characteristics and contribution of diverse participation towards elite youth and senior professional status. The data were collected using a retrospective questionnaire where the players reported the amount of time spent in other sports than football, in addition to their perceived contribution of different non-football activities for developing football skills. The accumulated hours of time spent in other sports of players who had obtained a senior professional contract were compared to non-professional players, using multilevel modelling (n = 558), while a t-test compared the activity ratings to each other. No significant differences were identified between professional and non-professional players’ engagement history, but overall, the players rated sports similar to football to be significantly more relevant for developing football skills than other sports. The results suggests that spending time in non-football activities did not contribute to present differences in performance attainment in football, but also that potential advantages of such activities may be related to their characteristics.     

Movement pattern and physiological response in recreational small-sided football – effect of number of players with a fixed pitch size

Recreational soccer is an effective health-promoting activity, but it is unclear how different game formats influence internal and external load. Thus, to be able to advise how to maximise the outcome of recreational football, we examined movement pattern and physiological response in 11 untrained men (32.6 ± 6.7 yrs, 23.3 ± 4.9 fat%, 43.4 ± 5.3 ml·min^?1·kg^?1) during three football sessions comprising 4 × 12 min of 3v3, 5v5 or 7v7 with a constant pitch size of 20 × 40 m. Movement pattern, heart rate (HR), blood lactate and RPE were measured during and after the 12-min periods. Greater (P < 0.05) total distance and high-speed distance was covered during 3v3 than 5v5 (14 and 30%) and 7v7 (15 and 75%). Mean HR was higher in 3v3 (85.7 ± 5.7%HRmax) and 5v5 (84.2 ± 5.1%HRmax) than in 7v7 (80.7 ± 4.6%HRmax, P < 0.05) and percentage time >90%HR was higher in 3v3 (43 ± 18%, P < 0.05) than in 5v5 (28 ± 21%) and 7v7 (18 ± 14%). Blood lactate was higher in 3v3 (7.4 ± 2.7 mmol·l^?1) than in 7v7 (4.5 ± 2.2 mmol·l^?1, P < 0.001) but not in 5v5 (6.1 ± 2.1 mmol·l^?1, P = 0.061). RPE was higher in 3v3 (6.7 ± 2.3, P < 0.01) than in 5v5 (5.2 ± 2.2) and 7v7 (4.3 ± 2.3). In conclusion, higher external and internal load was found with fewer players, when the pitch size is fixed.     

More decision-aid technology in sport? An analysis of football supporters’ perceptions on goal-line technology

The introduction of decision-aid technology in sport, such as goal-line technology (GLT) in football, has generated minimal literature on supporters’ perspectives. This paper aims to investigate Scottish football supporters’ perceptions towards GLT. Two hundred and seventy Scottish supporters completed a questionnaire to assess their satisfaction with GLT and factors that influence their level of satisfaction. The majority of Scottish supporters trust the technology applied in football and favours its use. However, they are dissatisfied with GLT in part because GLT is considered to detract from the atmosphere resulting from contentious goals which supporters appreciate and lessen the debate around crucial decisions. Findings also showed that football supporters are against GLT viewing in the stadium and do not welcome future decision-aid technology in football.     

‘Race’, politics and local football – continuity and change in the life of a British African-Caribbean local football club

This paper focuses on the role of a local sports club in shaping the lives of British African-Caribbean males in one British city over a 40-year period. The paper describes how the ‘Meadebrook Cavaliers’ has transitioned from its origins as an East Midlands parks-based football team in 1970 to a successful senior-level local football club by the early 1980s, before finally achieving a further social and financial organizational complexity in its charitable status, attained in 2009. Attention is paid specifically to the social formation of this largely masculine ‘black’ sport space over time and on how, and in what ways, these developments in local sport in one club in one British city are also intimately connected to wider social, economic and political developments in the UK. In doing so, the paper demonstrates, both theoretically and empirically, how the emergence of ‘black’ local football resonates with social change around ‘race’ politics in Britain during the period 1970–2010. By the same token, this mainly black male sporting space continues to reflect and influence change in the wider political, social and sporting terrains within which the club has been located – and within the dynamic black African-Caribbean communities which constitute it.     

Comment on ‘Performance analysis in football: A critical review and implications for future research’

Abstract

MacKenzie and Cushion (2013) recently reviewed performance analysis research in association football (soccer). Their critical review focused on several themes related to methodological approaches such as sample size, match context and operational definitions and the implications of research findings to professional practice. In this response letter, we comment on additional pragmatic concerns regarding these key themes as well as some of the difficulties commonly faced when conducting performance analysis research.     

The ‘origins of football debate’ and the early development of the game in Nottinghamshire

This article continues the debate on the origins of football. It contains new data which note early football activity and initial club formation in Nottinghamshire. The authors reach the conclusion that former public schoolboys were prominent in the development of football in that particular area and see this as further confirmation of their hypothesis that many of these individuals should be seen as important in the establishment of football as a modern sport.     

Injury prevention in male veteran football players – a randomised controlled trial using “FIFA 11+”

The warm-up programme “FIFA 11+” has been shown to reduce football injuries in different populations, but so far veteran players have not been investigated. Due to differences in age, skill level and gender, a simple transfer of these results to veteran football is not recommended. The purpose of this study was to investigate the preventive effects of the “FIFA 11+” in veteran football players.

Twenty veteran football teams were recruited for a prospective 9-month (1 season) cluster-randomised trial. The intervention group (INT, n = 146; 45 ± 8 years) performed the “FIFA 11+” at the beginning of each training session, while the control group (CON, n = 119; 43 ± 6 years) followed its regular training routine. Player exposure hours and injuries were recorded according to an international consensus statement.

No significant difference was found between INT and CON in overall injury incidence (incidence rate ratio [IRR]: 0.91 [0.64–1.48]; P = 0.89). Only severe injuries reached statistical significance with higher incidence in CON (IRR: 0.46 [0.21–0.97], P = 0.04).

Regular conduction (i.e. once a week) of the “FIFA 11+” did not prevent injuries in veteran footballers under real training and competition circumstances. The lack of preventive effects is likely due to the too low overall frequency of training sessions.     

Who’s fault is it? An analysis of the press coverage of football betting scandals in France and the United Kingdom

Sport betting is a lucrative business for bookmakers, for the lucky (or wise) punters, but also for governments and for sport. While not new or even recent, the deviances linked to sport betting, primarily match-fixing, have gained increased media exposure in the past decade. This exploratory study is a qualitative content analysis of the press coverage of sport betting-related deviances in football in two countries (UK and France), using in each case two leading national publications over a period of five years. Data analysis indicates a mounting coverage of sport betting scandals, with teams, players and criminals increasingly framed as culprits, while authorities and federations primarily assume a positive role. As for the origin of sport betting deviances, French newspapers tend to blame the system (in an abstract way); British newspapers, in contrast, focus more on individual weaknesses, notably greed. This article contributed to the growing body of literature on the importance of these deviances and on the way they are perceived by sport organizations, legislators and the public at large.     

“Macro-structure” of developmental participation histories and “micro-structure” of practice of German female world-class and national-class football players

The study examined the “micro-structure” of football practice and the “macro-structure” of participation history of female professional football players. Participants were 29 German 1st league (Bundesliga) players, 14 of whom played on the senior national team (Olympic Champion in 2016). A questionnaire recorded the players’ positions, proportions of physical conditioning, drill-type skill exercises and playing forms within coach-led football practice, and the volume of coach-led practice and peer-led play, in both football and other sports, from childhood to adulthood. Analyses revealed that most athletes played various attacker and defender positions during development. National team players differed from their Bundesliga peers by less physical conditioning and greater proportions of playing forms within football practice. National team players also accumulated less total football practice until age 18 years, but more peer-led football and coach-led practice in other sports compared to their Bundesliga counterparts. Based on these variables, a binary logistic regression classified 93% of the national team and Bundesliga players correctly. Conclusion: A combination of long-term coach-led football practice involving a relatively large proportion of playing forms with considerable childhood/adolescent peer-led football play and coach-led practice in other sports may have facilitated adult performance among German female world-class football players.     

‘Re-branding’ women’s football by means of a new Sports product: a case study of women’s football in Denmark

Women’s football (soccer in the US) does not reach the same overall popularity levels as men’s football measured on a variety of factors, i.e. league attendances, participants, media attention, fan engagement or strength of business models as it translates into brand equity and revenue generation. This article investigates how a new sports product, i.e. a new football (soccer ball) labelled ‘Sensational 1’, and its interaction with positive participation numbers concerning women’s football in Denmark can enhance the brand equity of women’s football in Denmark and exploit the associated commercial opportunities. In doing so, the article discusses how this development relates to factors like winning and success, passion and the business of sports, accountability and role models, brand articulation and marketability in the context of women’s football in Denmark.     

Dynamics of players’ relative positioning during baseline rallies in tennis

Abstract

This study analysed how the relative positioning of players on court influenced patterns of interpersonal coordination in baseline rallies in tennis. We developed a model (PA index) that assigns a weight to the position of each player on court and determines a positional advantage, based on the relative proportionality between the lateral and longitudinal displacement values during rallies. To test the model, data from 27 randomly-selected baseline rallies from three ATP World Tour matches (professional tennis players' tournaments organized by Association of Tennis Professionals) on clay were analysed. Results revealed that the PA index of players on court described their interpersonal coordination dynamics during baseline rallies. It also identified the emergence of rally breaks in the interpersonal coordination patterns of competing dyads that led to a point being scored. Data suggest that positional advantage data may assist coaches in the design of training tasks to enhance players' court coverage and performance during competitive interactions, acting as a valuable tool for performance analysis in tennis.     

Predicting spectators’ behavioural intentions in professional football: The role of satisfaction and service quality

The present study aimed to examine the relationships among service quality, satisfaction and spectators’ behavioural intentions, in the context of professional football. Using Gronroos’ (1984) theoretical framework, service quality was conceptualized in terms of technical (outcome) and functional (process-related) quality. Outcome quality was measured with two dimensions: game quality and team performance, while five dimensions were used to measure functional quality (tangibles, responsiveness, reliability, access and security). Three hundred and fifty (N = 350) spectators of a professional football game in Greece participated in the study. The results provided support of the two total service quality model used. Furthermore, outcome quality was shown to have a stronger influence on spectators’ satisfaction levels than functional quality; finally, satisfaction was shown to partially mediate the relationship between service quality and spectators’ behavioural intentions. These results contribute to our theoretical understanding of the factors that predict spectators’ loyalty in professional football. Sport marketing implications are also discussed.