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Matchplay characteristics and performance indicators of male junior and entry professional tennis players Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-21 Ales Filipcic; Bojan Leskosek; Miguel Crespo; Tjasa Filipcic
Performance analysis during match play is vital for the long-term development of tennis players. The primary goal of this study was to establish the differences between junior and entry professional tennis player's selected performance indicators in five-game situations. Data were collected using the Sagit/Tennis tracking system during six junior and four professional tennis matches. Eight boys performed
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Analysis of the differences in serve effectiveness between Billie Jean King Cup (former Fed Cup) and Davis Cup doubles tennis matches Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-21 Rafael Martínez-Gallego; Miguel Crespo; Jorge Jiménez
The doubles game has considerable relevance in professional tennis, especially in team competitions such as the Billie Jean King Cup (former Fed Cup) (BJKC) and the Davis Cup (DC). However, there are very few studies that have carried out quantitative notational analysis to provide information on the specific features of this tennis modality. The goal of this study was to analyse the differences in
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The tracking of internal and external training loads with next-day player-reported fatigue at different times of the season in elite soccer players Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-21 Garrison Draper; Matthew Wright; Paul Chesterton; Greg Atkinson
The aim was to assess factor structure of player-reported fatigue and quantify within-subjects association between changes in training load measures and next day player-reported fatigue at different time points of an elite football season. Using longitudinal research design, twenty-four professional footballers, mean (SD) age of 25.7 (3.4) years, were monitored during their competitive season, including
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What male coaches want to know about the menstrual cycle in women’s team sports: Performance, health, and communication Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-21 Anthea Clarke; Andrew Govus; Alex Donaldson
This study aimed to identify what male coaches of elite female team sport athletes want to know about the menstrual cycle and its influence on athlete health and performance. Using a mixed-methods concept mapping approach, 18 male coaches of Australian female elite football-codes brainstormed what they wanted to know about the menstrual cycle to work more effectively with female athletes. Ideas were
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Will ‘we’ continue to exercise? The associations between group identification, identity leadership, and relational identification on group exercise class adherence Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-18 Laura F Rowe; Matthew J Slater
The present study sought to provide support for the roles of both the social identity approach (group identification and identity leadership) and relational identification in adherence to group exercise classes. One hundred and twenty U.K. based group exercise class attendees completed an online survey in a cross-sectional design. Group identification, perceptions of identity leadership behaviour,
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Current perceptions of strength and conditioning coaches use of sled tow training Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-18 Jason Williams; Timothy Baghurst; Micheál J Cahill
The purpose of this study was to assess current perceptions of strength and conditioning coaches’ use of sled towing (ST) as part of their training programs. One-hundred and twenty-five coaches responded to a survey of their ST practices. Themes investigated included the primary purpose and usefulness of using ST, the loads used in short and long distances, rest times between sprints, total volume
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Vertical and horizontal barbell kinematics indicate differences in mechanical advantage between using an arched or flat back posture in the barbell bench press exercise Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-17 Brendan L Pinto; Clark R Dickerson
Employing an arched back posture during the bench press exercise is increasingly popular. Vertical displacement of the barbell is commonly believed to be the key difference influencing strength performance between an arched and flat back bench press technique. However, comparisons between these back postures using a free weight barbell are lacking. Directly comparing performance between each posture
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Coaching style, sport enjoyment, and intent to continue participation among artistic swimmers Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-17 Seungmo Kim; Sanghyun Park; Adam Love; Tsz Ching Pang
Using situational leadership models, the current study examined direct and indirect relationships between coaching styles (i.e., democratic and autocratic) and athletes’ intent to continue participation via enjoyment in the sport of artistic swimming. Data were collected using an online survey with a snowball sampling method. A total of 202 artistic swimmers at the elite level from 22 countries participated
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Coaches’ internal model of the tennis serve technique: Knowing or understanding? Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2021-01-10 Yulia Fetisova; James Zois; Michael Spittle; Andrew Dawson
The understanding of coaches’ knowledge plays a critical role in coach development. This study aimed to examine the internal models of expert and novice tennis coaches and to identify the key distinguishing characteristics between levels. Data was captured by in-depth interviews and analysed using a combination of qualitative and quantitative methodologies. The results revealed that the internal model
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A comparison of US and Scotland youth soccer coaches’ legal consciousness regarding concussion safety regulations Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-23 Anne L DeMartini; Sungwon Kim; Daniel P Connaughton; David McArdle
Due to the severe health consequences of sport related concussion (SRC), governments and sport governing bodies around the world have enacted numerous measures including changes to legislation and rules of the game, and increased emphasis on coach education. This study compared the legal consciousness of girls’ youth soccer coaches regarding concussion management under a statutory legal regime in the
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Do elite soccer players cover longer distance when losing? Differences between attackers and defenders Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-22 Carlos Lago-Peñas; Anton Kalén; Miguel Lorenzo-Martinez; Roberto López-Del Campo; Ricardo Resta; Ezequiel Rey
This study aimed to evaluate the effects playing position, match location (home or away), quality of opposition (strong or weak), effective playing time (total time minus stoppages), and score-line on physical match performance in professional soccer players using a large-scale analysis. A total of 10,739 individual match observations of outfield players competing in the Spanish La Liga during the
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Full effort compared to partial effort performance of the tennis serve in collegiate tennis players Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-21 Robert C Manske; Mark Stovak; Peter Loo; Michael Breunig; Todd Ellenbecker; Barbara S Smith
Interval tennis rehabilitation programs (ITRPs) are advocated during later stages of shoulder and elbow rehabilitation. ITRPs utilize gradual increases in hitting or serving effort, based on perceived effort. Over-estimation of effort may increase stress. This investigation purpose was to determine actual tennis serve velocity when asked to hit serves at perceived effort of 50%, 75%. Thirty-nine healthy
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Tackle and ruck technical proficiency in rugby union and rugby league: A systematic scoping review Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-20 Steve Den Hollander; Chanda Ponce; Michael Lambert; Ben Jones; Sharief Hendricks
The aim of this review was to consolidate and synthesise rugby union (RU) and rugby league (RL) studies on tackle and RU studies on ruck technique for rugby stakeholders. Forty-nine studies were identified (20 in RL and 29 in RU). RL studies primarily focussed on identifying factors that impact tackling ability. Leaner, fitter players, with greater lower body strength, tended to have more proficient
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Maturity timing and performance in a youth national basketball team: Do early-maturing players dominate? Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-18 Jorge Arede; John Fernandes; Jason Moran; Jonty Norris; Nuno Leite
The aims of this study were to examine the influence of maturity timing on functional skills and game-related statistics amongst under-16 (U16) national team basketball players, and analyse which of these parameters were related to onward selection to the under-18 (U18) national team. Thirty-six U16 basketball players underwent anthropometric and overhead squat assessments during a national team training
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Macro and micro network metrics as indicators of training tasks adjustment to players’ tactical level Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-13 João Cláudio Machado; Rodrigo Aquino; Alberto Góes Júnior; João Bosco Júnior; Daniel Barreira; Bruno Travassos; Sérgio José Ibáñez; Alcides José Scaglia
We aimed to investigate if social networks measures can be used as indicators of training tasks' adjustment level to soccer players’ tactical skills. Twenty-four U17 male soccer players (16.89 ± 0.11 years) participated in this study. The System of Tactical Assessment in Football (FUT-SAT) was used to identify players’ tactical level and to organize them into three groups: Higher tactical level (Group
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Coach awareness, knowledge and practice in relation to growth and maturation and training load in competitive, young gymnasts Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-10 Tejal Sarika Patel; Alex McGregor; Louise Fawcett; Sheree Bekker; Sean Williams; Karen Williams; Sean P Cumming
Growth-related and overuse injuries are commonly reported in young gymnasts. Two risk factors of these injuries are growth and maturation, and training load. However, little is known regarding current coaching knowledge and practice in relation to these risk factors. To help understand current knowledge and practice, 44 coaches of competitive, young gymnasts, from 3 gymnastics disciplines (men’s artistic
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Malandragem and Ginga: Socio-cultural constraints on the development of expertise and skills in Brazilian football Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-10 Luiz Uehara; Chris Button; John Saunders; Duarte Araújo; Mark Falcous; Keith Davids
In an ecological dynamics rationale, the development of expertise in sports is shaped by interactions of personal, task and environmental constraints. A notable outcome of this process is the distinctive performance styles of athletes shaped by socio-cultural-historical constraints. To understand this process, we examined the role of socio-cultural constraints shaping the development of skill in Brazilian
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Positive development of young futsal players is influenced by the coach's method and leadership profile Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-09 Luis Rogério de Albuquerque; Eduardo Mendonça Scheeren; Renato Rodrigues Biscaia; Gislaine Cristina Vagetti; Valdomiro de Oliveira
The objective of the current study was to investigate the influence of the teaching methods and the leadership profile of the coach in relation to the positive development of young futsal practitioners. In total, 541 Brazilian adolescents (13.86 ± 1.61 years) and 34 Brazilian coaches (45.58 ± 5.81 years), from a public sports program in 29 public schools in the city of Curitiba, in the state of Paraná
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The effect of the Video Assistant Referee on referee’s decisions in the Spanish LaLiga Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-09 C Lago-Peñas; MA Gómez; R Pollard
Video Assistant Referee (VAR) was officially introduced into Association Football (Soccer) regulations in 2018. The aim of this study was to examine how the implementation of this technology has modified the play in elite soccer. The sample consists of all 760 matches played in the Spanish LaLiga during the seasons before and after the implementation of the VAR system. The following variables were
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Evaluating the impact of a coach development intervention for improving coaching practices and player outcomes in netball: The MASTER coaching randomized control trial Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-06 Narelle Eather; Andrew Miller; Brad Jones; Philip J Morgan
The aim of this randomized controlled trial was to evaluate the impact of a novel 8-week coach development intervention (MASTER) on game-based coaching practices of netball coaches from one netball club (n = 16; 8 intervention, 8 active-control; NSW Australia), and player outcomes for the junior athletes being coached. The multi-component MASTER intervention aimed to educate coaches on how to design
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Contemporary practices of strength and conditioning coaches in professional cricket Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-06 Anthony Weldon; Michael J Duncan; Anthony Turner; Candice J Christie; Cecilia MC Pang
This study describes the contemporary practices of strength and conditioning (S&C) coaches in male professional cricket. Thirty-three S&C coaches working with international and professional club teams across seven countries completed an online survey. The survey consisted of 45 questions (35 fixed responses and 10 open-ended), with eight sections: (a) background information, (b) muscular strength and
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Characterizing adaptations of serve indicators in top-level male volleyball among seasons Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-12-06 Konstantinos Sotiropoulos; Sotirios Drikos; Sophia D Papadopoulou; Karolina Barzouka
The purpose of this study was to analyse selected serve characteristics in top-level male volleyball, with a special focus on detecting adaptations of the serve skill among seasons. The indicators examined were type, position, direction and quality of serve. The sample consisted of 5482 serves from three final phases of different top-level tournaments (Olympic Games 2012, N = 1942, World League 2017
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The effect of adolescent athletes’ achievement goal orientation and perception of error on their sport-confidence Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-28 Seungjoo Lee; Sungho Kwon; Yong-se Kim; Doheung Lee
The purpose of this study was to examine the effect of achievement goal orientation and perception of error on the sport-confidence of adolescent athletes and the moderating effect of perception of error in a competitive sports environment to provide basic data for improving the sport-confidence of adolescent athletes. The subjects of the study were middle and high school athletes (N = 300, Males = 218
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The roles of different types of passion in emotional exhaustion and turnover intention among athletic coaches Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-28 Ye Hoon Lee; Heetae Cho
Coaching turnover has significant implications for both athletic organizations and athletes. This study examined how the two distinctive types of passion were associated with turnover intention among high school athletic coaches. Moreover, this study used emotional exhaustion as an underlying mechanism in the relationship between passion and turnover intention. A total of 358 athletic coaches in the
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Collegiate coach attitudes towards lesbians and gay men Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-28 Elizabeth M Mullin; Sarah Cook
The purpose of the current study was to examine attitudes towards lesbians and gay men among National Collegiate Athletic Association (NCAA) Division I, II, and III coaches. Coaches (N = 290) from NCAA Division I (21%), II (22%), and III (56%) member institutions representing 31 different sports completed the Attitudes towards Lesbians and Gay Men scale and a demographic questionnaire. Overall, coaches
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Nutrition knowledge and dietary intake of hurlers Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-26 John Murphy; James O’Reilly
The current study investigated the association between sports nutrition knowledge and dietary quality in a sample of adult Irish male hurling players. Nutrition knowledge was measured by the validated Sports Nutrition Knowledge Questionnaire (SNKQ). Diet quality was measured by the Australian Recommended Food Score (ARFS) calculated from food frequency questionnaire data. Analysis of variance and linear
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Adolescent football players’ sleep, wellness and school physical activity over different phases of the year Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-26 Georgia A Brown; Stella Veith; John A Sampson; Matthew Whalan; Hugh HK Fullagar
This study aimed to examine differences in sleep and perceived wellness between a group of adolescent academy football (soccer) players from sport high schools (SHS) and regular high schools (RHS) during different phases of the year, with a secondary focus on their school physical activity (s-PA) levels. Data were collected from 51 adolescent football players from one youth Australian academy in two
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Job stressors, strain, and psychological wellbeing among women sports coaches Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-26 Faye F Didymus; Leanne Norman; Megan Hurst; Nicola J Clarke
Despite a globally recognised need for inclusive diversity among sport workforces, women are underrepresented in the inherently stressful profession of sports coaching. This study aimed to work with women sports coaches to answer the following research questions: 1) What demographic and contract-related factors are associated with job stressors? 2) What associations exist between job stressors, strain
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Profiles of motivation, fear of failure and anxiety in young handball players: A cross-sectional study Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-25 Manuel Gómez-López; Javier Courel-Ibáñez; Antonio Granero-Gallegos
The aim of this study was to identify distinctive profiles (clusters) of high-level, young handball players according to their motivation, fear of failure and competitive state anxiety. In addition, we examined differences in the distribution of gender, age, and players’ position within each profile. The study participants were 479 young handball players. The age range was 16–17 years old. Players
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Quantifying jump-specific loads in beach volleyball by an inertial measurement device Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-20 Marcus Schmidt; Eike Meyer; Thomas Jaitner
The ability to complete a large volume of high intensity jumps represents an important performance indicator in beach volleyball. Inertial measurement units are suitable tools to monitor those jump-specific loads but the applicability in beach volleyball lacks research. This study evaluates the accuracy of a commercially available inertial measurement device in beach volleyball for (i) jump count during
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Does tackle height influence offload success in rugby union? Analysis from the 2019 Rugby World Cup Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-20 Joshua Amayo; Gregory J Tierney
Offloads are an effective way of breaking through a defensive line in rugby union. Higher tackle heights are considered an effective strategy to defend against offloads. However, in a bid to reduce head injuries, there is a cultural shift within the rules of the game to tackle lower down on the body. This study used match video analysis of ten games from the 2019 Rugby World Cup to investigate whether
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Servant leadership, leader effectiveness, and the role of political skill: A study of interscholastic sport administrators and coaches Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-09 G Matthew Robinson; Marshall J Magnusen; Mitchell Neubert; Glenn Miller
Servant leadership is a model of leadership based on ethics and benevolent service to others and has been associated with numerous positive outcomes for employees and organizations. Due to a limited number of studies examining servant leadership (SL) within sport, the purpose of this study was to investigate the relation of servant leadership and leader effectiveness outcomes in sport administration
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The age, height, and body mass of Olympic swimmers: A 50-year review and update Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-05 Adam Mallett; Phillip Bellinger; Wim Derave; Mark Osborne; Clare Minahan
A difficulty in identifying the optimal age, height, and body mass of swimmers is the heterogeneity of the athletes examined (i.e., gender, caliber), the variability in race distance and stroke, and the influence of time. Nonetheless, age, height, and body mass remains the most readily available data of all athlete characteristics, supporting their contribution to the prediction of performance. This
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Effective playing time in the Chinese Super League Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-02 Yangqing Zhao; Hui Zhang
The purpose of this study was to analyse the effective playing time during the 2012-2018 Chinese Super League seasons. A linear mixed model with crossed random effects was used to assess the effects of match and technique characteristics on effective playing time. The key findings are as follows. (1) Matches played between the top eight teams, a tie at half time and increased audience participation
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Physiological responses on the Concept II BikeErg and Concept II RowErg in well-trained male rowers Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-02 Kirstie J Turner; Anthony J Rice
Stationary cycling is a common training mode of rowers, used to provide variety in training programs and prevent overuse injuries commonly associated with the repetitive nature of the rowing stroke. The purpose of this study was to investigate the differences in physiological responses on a Concept II BikeErg (Concept II BikeErg; Concept2 Inc., US) and Concept II RowErg (Concept II Model D; Concept2
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Inertial measurement units are ‘all g’: Inter-trial reliability when assessing upper and lower body impact loading in artistic gymnastics Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-02 Rhiannon A Campbell; Elizabeth J Bradshaw; Nick Ball; Adam Hunter; Wayne Spratford
The magnitude of loading artistic gymnasts experience during training is currently unknown. Inertial measurement units (IMUs) could assess loading, although the reliability of these devices must be established prior to implementation into the training environment. This study aimed to determine inter-trial reliability of using IMeasureU Blue Thunder IMUs to assess upper and lower limb loading when performing
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Sanctioning of breakdown infringements during the knockout stage of the 2019 rugby world cup Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-11-02 Scott Mitchell; Gregory J Tierney
The breakdown is a complex and dynamic facet of rugby union, often containing multiple players from each team. It is the responsibility of coaches and trainers to ensure players are prepared to comply with the World Rugby laws of the game to encourage safe and fair play between all participants. The aim of this study was to investigate player adherence and sanctioning of infringements at the breakdown
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Bullseye: Effects of autonomy support and enhanced expectancies on dart throwing Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-29 Julian Alexander Wehlmann; Gabriele Wulf
The present study examined the combined influence of two motivational key factors in the OPTIMAL theory of motor learning,1 enhanced expectancies (EE) and autonomy support (AS), on the learning of a dart-throwing task. In one group (AS/EE), participants were provided with a success criterion that could be met relatively easily (EE) and two small choices (AS). A control group practiced under neutral
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Perception of social support provided by coaches, optimism/pessimism, and psychological well-being: Gender differences and mediating effect models Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-29 Tung-Wei Cnen; Yi-Chuan Chiu; Yawen Hsu
This study explored whether gender differences exist in social support, optimism/pessimism, and psychological well-being among university student athletes and examined the relationship among these three variables and the mediating effect of optimism/pessimism. A total of 322 university student athletes (159 men and 163 women) who were Division 1 athletes participated in this study. The research instruments
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Comparison of different measures to monitor week-to-week changes in training load in high school runners Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-29 Megan R Ryan; Christopher Napier; Daniel Greenwood; Max R Paquette
Training load is commonly used to monitor training stress and is the product of external and internal physiological loads experienced by an athlete. With emerging wearable technology, it is possible to evolve existing external load measurement from duration or distance to runner-specific biomechanical data, which when combined with existing measures of internal load such as session rating of perceived
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Determining strength training needs using the force-velocity profile of elite female handball and volleyball players Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-28 Leonidas Petridis; Gergely Pálinkás; Zsófia Tróznai; Bettina Béres; Katinka Utczás
The aim of this study was to assess the vertical jump performance and the force-velocity profile of elite female handball and volleyball players. Forty-one female athletes were measured, 28 handball players (age: 24.0 ± 3.6 years, body height: 1.75 ± 0.05 m, body mass: 69.0 ± 7.3 kg) and 13 volleyball players (age: 24.1 ± 5.2 years, body height: 1.83 ± 0.07 m and body mass: 74.9 ± 7.9 kg). All players
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Dark traits as a potential feature of leadership in the high-performance sports coach Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-28 Benjamin G Serpell; Darlene Harrison; Matt Lyons; Christian J Cook
High-performance sport coaches are leaders in their field; therefore, they sometimes operate under ‘regular’ workplace leadership role requirements. However, they are also subject to highly uncertain and pressured environments. Thus, most coaching/leadership positions in high-performance sport may be both ‘normal’ and ‘unique’ in leadership role requirement. Consequently, understanding what high-performance
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How playing area dimension and number of players constrain football performance during unbalanced ball possession games Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-27 Nuno André Nunes; Bruno Gonçalves; Diogo Coutinho; Fábio Yuzo Nakamura; Bruno Travassos
The aim of this investigation was to analyse the external workload, tactical individual actions of passing, and perceived internal load during unbalanced small-sided games. Ball possession formats (4v3, 4v4 and 4v5) were played in three different playing area dimensions (20 × 15m, 25 × 20m and 30 × 25m) by under-23 football players. Data were analysed under opposition-based perspective, by fixing one
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Work-related ill- and well-being among Finnish sport coaches: Exploring the relationships between job demands, job resources, burnout and work engagement Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-25 Satu S Kaski; Ulla Kinnunen
Objective This research examined the work-related ill- and well-being of Finnish sport coaches and the associations of job demands and resources with burnout and work engagement. Our study was based on the Job Demands-Resources (JD-R) model. The JD-R model proposes that job demands relate especially to burnout and job resources relate especially to work engagement. Methods Finnish coaches (N = 499)
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Differences in anthropometric and physical performance characteristics between U17, U19, and Senior Irish female international football players Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-25 Brian Doyle; Declan Browne; Dan Horan
This study aimed to compare the anthropometric physical performance characteristics of Irish female international footballers at U17, U19, and Senior age groups. Fifty-five (U17, n =24, U19, n =21, Senior, n = 10) female international football players participated in this study. The subjects underwent anthropometric measurements (height and body mass) and physical performance tests countermovement
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Are relative age and biological ages associated with coaches’ evaluations of match performance in male academy soccer players? Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-22 Megan Hill; Sam Scott; Darragh McGee; Sean P Cumming
Talent identification and selection in soccer has been shown to be confounded by individual differences in relative age and biological maturation. Limited research has however, investigated whether these effects are reflected in coaches’ evaluations of performance. This study investigated relative and biological age associated differences in coach perceptions of performance in a professional soccer
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Does competition standard and player position influence the match-play physical demands of Australian elite youth male soccer players within a single squad? Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-22 Michael G Sydney; Nick Ball; Dale Chapman; Martin Wollin; Jocelyn K Mara
The purpose of this study was to investigate the influence of competition standard and player position on the physical demands of Australian elite youth male soccer players during match-play. Twenty-three elite youth male soccer players from the same Australian U17 National Centre of Excellence program were observed across 8 National Youth League (NYL) and 21 National Premier League (NPL) competition
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Coaches’ perceived pitfalls in delivering psychological skills training to high-level youth athletes in fencing and football Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-18 Niels Boysen Feddersen; Marcus Alexander Bygballe Keis; Anne-Marie Elbe
The current study examined how two high-level coaches in fencing and football perceived the challenges that emerged during a three-month coach education programme aimed at them delivering psychological skills training to athletes. We used action research as the study design and collected data using observations, six semi-structured interviews, and one focus group. We analysed the data using a thematic
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Follow-up evaluation of the Coaching for Life Skills online training program Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-13 Stéphanie Turgeon; Martin Camiré; Scott Rathwell
Coach education has been positioned as an important catalyst in enabling coaches to maximise the positive influence of high school sport on student-athlete development. The purpose of the study was to conduct a subsequent season follow-up evaluation, examining longer-term changes in coach-athlete relationship, coach interpersonal behaviours, and life skills teaching in coaches who completed the Coaching
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Effect of stance width on posture stability of golfers putting under windy conditions Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-10-06 Chun-Ju Yang; Mu-Lin Tai; Cheng-ming Hu; Joseph Hamill; Wen-Tzu Tang
Golf putting requires accuracy and precision. However, environmental factors can influence the accuracy and stability of the putt. Therefore, the purpose of this study was to investigate the adjustment and stabilization strategies of elite college golfers putting under different wind conditions. A 3 D motion analysis system and two force plates were used to record the kinematic and ground reaction
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Perceived coach-created environment directly predicts high school athletes’ physical activity during sport Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-30 Tsz Lun (Alan) Chu; Xiaoxia Zhang; Joonyoung Lee; Tao Zhang
Sport participation is an important means for adolescents to achieve moderate-to-vigorous physical activity (MVPA), yet most high school students including athletes do not achieve the 60-minute daily MVPA guideline. As psychosocial factors influence athlete engagement and physical activity during sport, the perceived environment created by coaches could play a role in this influence. Guided by self-determination
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Concussion knowledge, attitude and reporting intention in rugby coaches and high school rugby players Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-30 Danielle M Salmon; Janelle Romanchuk; S John Sullivan; Simon Walters; Amanda Clacy; Johna K Register-Mihalik; Zachary Y Kerr; Chris Whatman; Sierra Keung
The aim of this study was to evaluate New Zealand high school rugby union players’ and community coaches’ concussion knowledge (CK), concussion attitude (CA) and concussion reporting intentions (CRI) and to explore the impact gender, age, ethnicity, socio-economic status, experience, and concussion history had on these outcome measures. This cross-sectional study utilised the Rosenbaum Concussion Knowledge
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In-game behaviour analysis of football players using machine learning techniques based on player statistics Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-29 Abraham García-Aliaga; Moisés Marquina; Javier Coterón; Asier Rodríguez-González; Sergio Luengo-Sánchez
The purpose of this research was to determine the on-field playing positions of a group of football players based on their technical-tactical behaviour using machine learning algorithms. Each player was characterized according to a set of 52 non-spatiotemporal descriptors including offensive, defensive and build-up variables that were computed from OPTA’s on-ball event records of the matches for 18
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‘Zooming in’ on the antecedents of youth sport coaches’ autonomy-supportive and controlling interpersonal behaviours: a multimethod study Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-17 Mark Carroll; Justine Allen
Grounded in self-determination theory and the motivational model of the coach-athlete relationship, the purpose of this study was to explore the antecedents of youth sport coaches’ autonomy-supportive and controlling behaviours using a multimethod approach. Recreational level youth swimming and football coaches (N = 12) participated in semi-structured interviews and were observed leading a coaching
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Patterns of achievement-motivated behavior and performance as predictors for future success in rowing: A person-oriented study Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-09 Michael J Schmid; Achim Conzelmann; Claudia Zuber
Talent selection in rowing is often solely based on anthropometric and performance variables, even though psychological characteristics are considered to be important contributors to successful talent development. Because multidimensional talent models and holistic theories represent the state-of-the-art in talent research, we aimed to find patterns connecting psychological and performance variables
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Associations of situational and performance variables with defensive transitions outcomes in FIFA World Cup 2018 Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-09 Rui Freitas; Anna Volossovitch; Carlos H Almeida
Transition moments play a major role in match outcome and constitute an important part of the soccer coaching process. Nevertheless, the body of literature on match analysis reveals a lack of knowledge regarding transition moments, particularly the defensive ones. This study aimed to analyse how several situational and performance variables were associated with different defensive transition outcomes
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Investigation of the interaction between coach transformational leadership and coaching competency change over time Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-09 San-Fu Kao; Chou-Yu Tsai; Robert Schinke
Drawing on social cognitive theory, we examined a cross-level interaction between coach transformational leadership and the within-individual change in evaluations of perceived coaching competency over a season. We applied linear growth modeling to analyze 246 collegiate competitive basketball players (147 males and 99 females from 24 teams). Our results revealed that coaches with high transformational
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A principled approach to equipment scaling for children’s sport: A case study in basketball Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-09 AD Gorman; J Headrick; I Renshaw; CJ McCormack; KM Topp
The aims of this research were to (a) demonstrate how a principled approach using anthropometric measures of the hand can be used to identify the most appropriate basketball size for junior basketball players and (b) examine participants’ preferences in relation to the use of different sized basketballs after gameplay. The hand spans and hand lengths of junior and senior male basketball players were
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The effect of a rhythmic movement intervention on selected bio-motor skills of academy rugby players in the Western Cape, South Africa Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-09-09 Jocelyn Solomons; Wilbur Kraak; Martin Kidd; Eileen Africa
Rhythmic movement, also referred to as “dance”, involves the execution of different motor skills as well as the integration and sequencing of actions between limbs, timing and spatial precision. The aim of this study was therefore to investigate and compare the effect of a 16-week rhythmic movement intervention on flexibility, dynamic balance, agility, power and local muscular endurance of academy
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Should team coaches care about justice? Perceived justice mediates the relation between coaches’ autonomy support and athletes’ satisfaction and self-rated progression Int. J. Sports Sci. Coaching (IF 1.235) Pub Date : 2020-08-30 Maarten De Backer; Filip Boen; Stef Van Puyenbroeck; Bart Reynders; Koen Van Meervelt; Gert Vande Broek
In contrast to the many studies in the business setting, few sport scientists have studied the predictors of athletes’ perception of justice. The present research aimed to determine the role of the interpersonal style of coaches (autonomy support) in enhancing perceived justice and its impact on satisfaction and performance. More precisely, two independent studies examined whether perceived justice