Dan Dwyer's research while affiliated with Deakin University and other places

Publications (48)

Article
Elite cricket pace bowlers commonly sustain debilitating bone stress injuries. Lumbar bone stress injuries are more prominent in males, while lower limb bone stress injuries are more common in females. Bone stress injuries are partly attributable to bowling technique; however, scant research exists comparing bowling techniques of males and females...
Article
The ability of a pace bowler to deliver the cricket ball at faster speeds is linked with improved match performance as they require less deliveries to take a wicket and concede less runs per wicket taken. The aim of this study was to explore the relationship between ball release speed and selected pace bowling kinematics in 19 elite female pace bow...
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Association football (commonly known as football or soccer) in the modern era places a greater emphasis on collaborating and working together as a team instead of relying solely on individual skills to strategize winning performances. The low-scoring and unpredictable nature of association football makes evaluating team performances challenging. Sp...
Article
Elite sport coaches are often expected to make high-stakes decisions in time-constrained environments, such as during matches. The quality or efficiency of these decisions is bound by context-specific constraints on their decision-making. Artificial intelligence-based tools could alleviate some of these constraints. In Australian football, it is no...
Article
The ability to make effective decisions is an important function of any football coach, whether during training, team selection, match-day performance or post-match player evaluation. It is not yet known how elite Australian football coaches make decisions during matches, in time-constrained but well-resourced environments. This study is the first...
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Purpose: To determine whether the most important physical qualities in elite Australian male and female cricket pace bowlers change with age and phase of the cricket season. Methods: An existing longitudinal database (7 cricket seasons) of selected and routinely collected physical testing data from 103 male and 58 female elite Australian pace bo...
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The aim of this study was to determine whether the ball passing characteristics of elite women’s soccer teams are associated with measures of team performance. In total, 170 matches from two professional women’s competitions were used in the analysis. Twenty passing characteristics were analysed to determine their association with match outcome and...
Article
The aim of the study was to compare the Force-Velocity profiles of track sprint cyclists obtained in seated and non-seated positions. Athletes were tested on a stationary cycle ergometer for the seated position and on a racing bike at the velodrome for the non-seated position. We modelled torque and power vs. cadence relationships and extracted max...
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Understanding reliability of performance analysis tools is important to ensure match to match comparisons can be undertaken with the knowledge of consistency between coding situations. There are few published studies examining the reliability of commonly used performance analysis tools. The aim of this project was to assess the inter- and intra-rat...
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Studies of training and competition load in sport are usually based on data that represents a sample of a league and or annual training program. These studies sometimes explore important factors that are affected by load, such as training adaptations and injury risk. The generalisability of the conclusions of these studies, can depend on how much l...
Article
Analysis of the underlying tactics and teamwork in women's football is rare and it is unknown how professional women's teams cooperate to be successful. The aim of this study was to investigate teamwork using network analysis while comparing match-outcome, match-type, ladder halves and tournament phases, to determine whether teamwork is related to...
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Purpose: This study investigated the differences between selected physical attributes and ball release speed in slower and faster male and female elite pace bowlers. Methods: Twelve physical attributes and ball release speed were retrospectively analyzed from 63 male and 31 female elite pace bowlers over the course of 5 seasons. Pace bowlers wer...
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There have been a small number of analyses of team technical performance in 20-over (T20) cricket that have identified total wickets and runs as critical determinants of match outcome. The present study aimed to extend on these findings by using a wide range of technical performance indicators, a larger sample size, a whole-of-season perspective an...
Article
There is a need to establish normative values for technical performance indicators (PI) in the relatively new Australian Football League Women’s (AFLW), to identify trends, to compare with the established men’s league, and associations with match outcome. Data from the 2019 AFL (men’s) season and the 2017–19 AFLW (women’s) seasons, included the nor...
Article
Objectives: Understanding the successful characteristics of team formation during different scenarios in Australian Football matches can assist coaches in making important tactical match-day and training decisions. The aims of this study were to explore the outcomes of entries inside 50 m of the goal, in Australian Football and to determine whethe...
Article
Objectives. There is little understanding of the optimal technical performance characteristics associated with winning matches in netball and how these might vary between competition levels and between each quarter of the game. This study aims to identify and compare team technical performance characteristics between elite domestic and internationa...
Article
Internal loads as measured by session rating of perceived exertion (sRPE) of high-performance netballers were explored using data from athletes who competed in the 2017 and 2018 Suncorp Super Netball (SSN) and 2016 to 2018 Australian Netball League (ANL) competitions. Data were analysed to determine if there were differences between season phase (p...
Article
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Knowledge of optimal technical performance is used to determine match strategy and the design of training programs. Previous studies in men’s soccer have identified certain technical characteristics that are related to success. These studies however, have relative limited sample sizes or limited ranges of performance indicators, which may have limi...
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Objectives To determine whether specific injury measures were associated with team performance in the Australian Football League (AFL). Methods 15,289 injuries caused players from 18 teams to miss 51,331 matches between 1997 and 2016. Data were aggregated to the team level. We analysed the associations among injury measures and team performance (re...
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Background: Injury surveillance has been used to quantify the scope of the injury burden in Australian football. However, deeper statistical analyses are required to identify major factors that contribute to the injury risk and to understand how these injury patterns change over time. Purpose: To compare Australian Football League (AFL) injury inci...
Article
Objectives: To identify novel insights about performance in Australian Football (AF), by modelling the relationships between player actions and match outcomes. This study extends and improves on previous studies by utilising a wider range of performance indicators (PIs) and a longer time frame for the development of predictive models. Design: Ob...
Article
Objectives: The purpose of this study was to provide a profile of the demographics and employment characteristics of the Australian high performance and sport science workforce. Design: This study used a cross-sectional, quantitative survey methodology to collect data about the Australian high performance and sport science workforce. Method: 1...
Article
Objectives: The purpose of this study was to investigate the effects of match characteristics and elite level umpiring experience on the decision-making performance of umpires in the Australian Football League (AFL). Design: Cross Sectional Study. Methods: All decisions from the 2014 AFL home and away season made by 32 male AFL field umpires (...
Conference Paper
Full-text available
Introduction & Aims: Sport scientists are increasingly using data mining methods to analyse sporting performance, but important methodological considerations in this context are underexplored. The aim of this study is to demonstrate and critically evaluate the application of common data mining techniques, with game style 'era identification' in Aus...
Article
Objectives: The purpose of this study was to assess the validity of the ActiGraph GT3X+ (GT3X+) and the BodyMedia SenseWear Armband (SWA) to estimate energy expenditure (EE) during physical activity and field sport movements. Design: Criterion validity. Methods: Twenty-six active adults completed a single 90min session involving alternating in...
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Purpose: Previous investigations of player load in netball have utilised subjective methodologies, with few utilising objective methodologies. Whilst all studies report differences in player activities or total load between playing positions, it is unclear how the differences in player activity explain differences in positional load. The aim of th...
Article
Sodium citrate induces alkalosis and can provide a performance benefit in high-intensity exercise. Previous investigations have been inconsistent in the ingestion protocols used, in particular the dose and timing of ingestion prior to the onset of exercise. The primary aim of the present study was to quantify blood pH, blood bicarbonate concentrati...
Article
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The purpose of this study was to assess the validity of a GPS tracking system to estimate energy expenditure (EE) during exercise and field sport locomotor movements. Twenty-seven participants each completed one 90 minute exercise session on an outdoor synthetic futsal pitch. During the exercise session participants wore a 5 Hz GPS unit interpolate...
Article
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Purpose: The activity profile of competition and training in elite netball has not been comprehensively reported in the literature. The present study was designed to measure and analyse player load in elite netballers during matches and training sessions. The primary research questions were, how does player load vary between playing positions in a...
Article
Performance in triathlon is dependent upon factors that include somatotype, physiological capacity, technical proficiency and race strategy. Given the multidisciplinary nature of triathlon and the interaction between each of the three race components, the identification of target split times that can be used to inform the design of training plans a...
Data
Australia is viewed as leader in the field of sports science, with Australian sports scientists highly sought after and respected worldwide. However, despite the important contribution of sports scientists to the development of professional sport in Australia, we know little about these sport professionals who play an important role in the developm...
Article
The track cycling Omnium is a multi-event competition that has recently been expanded to include the Elimination Race (ER), which presents a unique set of physical and tactical demands. The purpose of this research was to characterise the performance attributes of successful and unsuccessful cyclists in the ER, that are also predictive of performan...
Article
This article describes the implementation of machine learning techniques that assist cycling experts in the crucial decision-making processes for athlete selection and strategic planning in the track cycling omnium. The omnium is a multi-event competition that was included in the Olympic Games for the first time in 2012. Presently, selectors and cy...
Article
Full-text available
Abstract This article describes the utilisation of an unsupervised machine learning technique and statistical approaches (e.g., the Kolmogorov-Smirnov test) that assist cycling experts in the crucial decision-making processes for athlete selection, training, and strategic planning in the track cycling Omnium. The Omnium is a multi-event competition...
Book
Australia is viewed as leader in the field of sports science, with Australian sports scientists highly sought after and respected worldwide. However, despite the important contribution of sports scientists to the development of professional sport in Australia, we know little about these sport professionals who play an important role in the developm...
Article
This paper presents work on using Machine Learning approaches for predicting performance patterns of medalists in Track Cycling Omnium championships. The omnium is a newly introduced track cycling competition to be included in the London 2012 Olympic Games. It involves six individual events and, therefore, requires strategic planning for riders and...
Conference Paper
Full-text available
This paper presents work on using Machine Learning approaches for predicting performance patterns of medalists in Track Cycling Omnium championships. The omnium is a newly introduced track cycling competition to be included in the London 2012 Olympic Games. It involves six individual events and, therefore, requires strategic planning for riders and...

Citations

... It has allowed for players and teams to be analysed in more context reflective way when looking at shooting performance. ARF has attempted to integrate xG into the sport, with the xG model re-named as an "expected score" (xScore), as there is more than one way to score in the sport (goals and behinds) [8, 9,10,11]. Sport specific variables that can be explored include whether a player kicked with their dominant foot, how much pressure is being applied to the kicker and what phase of play they took the shot. ...
... Performance analysis can play a critical role in supporting the decision-making of coaches at the elite level in many invasion sports (Wright et al., 2013). In Australian football (AF), coaches rely partly on insights provided by performance analysts to support in-match decisions which lead to changes in the way the team performs, through either personnel, game-style, or team structure changes (Aarons et al., 2023). In time-constrained environments, such as during matches, coaches and analysts may benefit from access to quick, objective analyses of match data to support their decision-making. ...
... Physical preparation guidelines are widely researched in men's cricket (32), including physical profiling for individual player roles, such as bowlers and batters (8). The same is not evident for women's cricket because current research supporting physical preparation for female cricket players focuses on female players as a group (18) or explores the profiles of elite pace bowlers (11,12,26). Letter et al. (11) found that faster female pace bowlers possess superior physical characteristics, such as maximal upper-body muscle strength, compared with slower pace bowlers. ...
... 5 Nevertheless, in recent years, the number of publications on tactical performance in women's football has increased. [7][8][9][10] Due to all these factors, women's football has always tried to reproduce the success models (technical, tactical, conditional, sociological, and psychological) proposed for men's football in what could be called a ''unisex'' performance perspective. 4 This perspective, from our point of view, is erroneous due to the differences between elite women's and men's football concerning collective [11][12][13][14][15] and individual 16 technical2tactical aspects. ...
... Despite many studies investigating T-C and P-C profiles in laboratory settings (Dorel et al., 2005;Kordi et al., 2019;McCartney et al., 1983;Rudsits et al., 2018;Wackwitz et al., 2020;Yeo et al., 2015), few have attempted to evaluate field-based approaches to determine T-C and P-C profiles (i.e., on the track) (Bertucci et al., 2007;Dunst et al., 2022;Dwyer et al., 2022;Gardner et al., 2007). Gardner et al. (2007) reported that there were no significant differences in the T-C and P-C profile mechanical variables derived from a laboratory-and field-based protocol in elite cyclists. ...
... This data was collected via notational analysis from broadcast vision. Inter-and intra-rater reliability of the collected data has been reported previously (Bruce et al., 2022), with strong correlations (r > .80) identified for the frequency of game events (i.e., inter-rater reliability) and repeat analysis (i.e., intra-rater reliability). ...
... Objective assessment of athletic performance is conducted by means of tracking kinematic, temporal, and dynamic parameters of movement (Yeo & Park, 2020). The application of artificial intelligence (AI) to sports motion data has been shown to be beneficial in the realm of performance assessment and analysis (Dwyer, Kempe, & Knobbe, 2022). The use of AI techniques in sports motion analysis refers to the recognition and classification of patterns and skills (Bonidia et al., 2018). ...
... However, it is important to note that the previous study [13] monitored four trial matches and 13 in-season matches across multiple months, whereas we specifically monitored 2 trial matches and the first 2 in-season matches for each team across an acute 6-week period. Indeed, relative HSR distance [14] has been shown to increase during middle (matches 9-16) and late (matches [17][18][19][20][21][22][23][24] phases of the in-season compared to the early in-season phase (matches 1-8) in professional, male rugby league players. Consequently, the inclusion of matches beyond the early in-season phase in the previous study [13] may have augmented the in-season HSR demands relative to trial matches. ...
... To date, research into women's soccer has largely focused on the physical (Vescovi et al., 2021) and physiological demands of the game (Datson et al., 2014;Martínez-Lagunas et al., 2014). Current literature has also emphasised the importance of understanding technical and tactical characteristics of the game (de Jong et al., 2020;de Jong et al., 2023). When compared to elite men's soccer, elite women's soccer appears to adopt a more attacking style of play, possession is lost more frequently, and passes are performed with less accuracy (Bradley et al., 2014;Garnica-Caparrós & Memmert, 2021). ...
... To date, only one study has reported the physical capacities of female cricketers [8]. This investigation, while providing valuable insights into the physical capacities of female cricketers, was delimited to elite, professional seam bowlers. ...