ORCID Profile
0000-0002-6668-3815
Current Organisations
Curtin University
,
Edith Cowan University
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Publisher: Wiley
Date: 25-08-2017
Publisher: Springer Science and Business Media LLC
Date: 26-10-2021
DOI: 10.1186/S13102-021-00362-5
Abstract: During Australian football (AF) matches, players are subjected to high running loads, which are intermittent in nature. There is a growing body of research that highlights factors which can both positively and negatively affect this match running performance (e.g., the total distance travelled by a player during match-play). In order to appropriately evaluate these factors, a thorough search of MEDLINE, SportDiscus and Web of Science databases was performed, with a total of 17 manuscripts included within the final evaluation. The main findings from this review highlighted that match running performance is increased amongst those playing in midfield and half back/forward positions, in players with lower playing experience, as well as in matches against higher quality opponents, and in losing quarters. Additionally, a well-design interchange-rotation strategy may be able to positively affect match running performance. A decrease in match running performance was evident amongst more experienced players, during periods of acute fatigue (e.g., following periods of high intensity activity), during matches played in higher temperatures and matches with an increased number of stoppages. However, no effect of ground hardness or size, as well as responses to self-reported wellness questionnaires was found. Other factors such as finals series matches, pre-season training load and elements related to the schedule have been shown to have substantial conflicting results within the literature, increasing the difficulty in making generalisable conclusions to their effect on match running performance. Developing a thorough understanding of these factors which affect match running performance can aid practitioners and coaches to gain a greater understanding of a player’s performance as well as inform the development of strategies for its improvement.
Publisher: Elsevier BV
Date: 2019
DOI: 10.1016/J.JSAMS.2018.06.008
Abstract: To quantify changes in running kinetics and kinematics during a repeated-sprint test in football players, and explore the sensitivity and specificity with which these variables can identify previous hamstring injury. 20 Western Australia State League footballers with previous unilateral hamstring injury and 20 players without completed a 10×6-s repeated-sprint test on a non-motorised treadmill dynamometer. Changes in horizontal force, vertical force, contact time and flight time were compared between previously injured and uninjured legs of participants. Mean horizontal force production of the previously injured leg in the injured group was 13% lower (p=0.001), and this magnitude of change was used to identify the injured legs within the cohort with 77% specificity and 85% sensitivity. Furthermore, the area under the Receiver Operating Characteristics curve (0.846) demonstrated that the between-leg difference in mean horizontal force was a good instrument for identifying previous hamstring injury. There is a greater fatigued-induced change in mean horizontal force during a repeated-sprint test in legs with previous hamstring injury than the non-injured legs of the injured players or the legs of uninjured players. Such asymmetry may contribute to impaired performance in football players returning from hamstring injury and also to the high rate of hamstring re-injury. Rehabilitation and return-to-play strategies should emphasise a reduction in asymmetry, particularly during repeated high-intensity efforts. Furthermore, binary regression and Receiver Operating Characteristic analyses suggest that changes in mean horizontal force could be used to assess risk of hamstring injury, re-injury and/or return to play.
Publisher: Journal of Sports Science and Medicine
Date: 09-2022
Abstract: This study investigated the effects of reduced quarter time due to COVID-19 pandemic rule changes, on running performance and injuries in Australian Football. Microsensor data for eight matches performed by the same 17 players were compared between the 2019 (standard) and 2020 (COVID-19) seasons using linear and generalised mixed models. Injury rates were assessed in 34 players across the full 2019 season, and 32 players across the full 2020 season. The total distance (ES = 1.28 [0.55 to 2.02]), high-speed ( km/h) (ES = 0.44 [-0.24 to 1.12]) and very highspeed ( km/h) (ES = 0.27 [-0.41 to 0.94]) distances, PlayerLoad™ (ES = 0.96 [0.25 to 1.67]), high-intensity efforts (ES = 0.48 [-0.20 to 1.16]), and accelerations (ES = 0.33 [-0.34 to 1.01]) were smaller (p ≤ 0.01) for the 2020 than the 2019 season. Expressed relative to playing time, distance (ES=-0.38 [-1.06 to 0.30]), PlayerLoad™ (ES = -0.27 [-0.94 to 0.41]), and acceleration efforts (ES = -0.50 [-1.18 to 0.18]) were greater (p 0.05) for the 2020 than the 2019 season. No significant differences in maximum ball-in-play periods nor the difference between the 1st and 4th quarters were evident. Injury rates remained similar between 2019 (3.36 per game) and 2020 (3.55 per game). However, the proportion of injuries that led to lost time (missed games) was greater for the 2020 (38%) than 2019 season (24%). The changes in the rules had a profound impact on player performance and increased the likelihood of time loss injuries.
Publisher: SAGE Publications
Date: 12-07-2202
Abstract: Women’s international football is growing in terms of popularity, but to date there is limited published research in women’s football and even less that describes effective attacking strategies and the creation of goal scoring opportunities (GSO). The purpose of this research was to investigate and assess the factors related to the creation of GSO that led to a Top 4 position Canada Women’s World Cup 2015. Video footage of each match (n = 52) from the Women’s World Cup (Canada 2015) was analysed using SportsCode Software. The results revealed that the middle third of the pitch was the most effective area for gaining possession and creating GSO. The average time taken to create a GSO was under twelve seconds. The findings of the study can be used by coaches to design training sessions and interventions to successfully create GSO in women’s football. The data from the research may influence the tactical set up of women’s international football teams and help to evolve the game in the same way that research into the men’s game has.
Publisher: BMJ
Date: 08-2018
DOI: 10.1136/BMJSEM-2017-000336
Abstract: Strategies to prevent or attenuate the age-related decline in physical and physiological function and reduce chronic disease risk factors are of clinical importance. To examine the health benefits of recreational soccer in middle-aged and older adults. Systematic review in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. All available records up until 9 June 2017 in PubMed, Web of Science, SPORTDiscus, MEDLINE, Embase, CINAHL Plus, PsycINFO and Cochrane Library databases. All randomised trials with or without a control group (randomised controlled trials or randomised uncontrolled trials) and non-randomised controlled trials that used recreational soccer, which includes small-sided soccer games, as the sole or principal intervention, and reported relevant effects in untrained/sedentary, healthy or unhealthy adults aged 40 years and above were included. Five trials described in 13 articles were included, which scored 6–9 out of 12 points on the modified Delphi quality rating scale. The duration was from 12 to 52 weeks, with various frequencies, volumes and game formats performed both outdoors and indoors with men and women. The trials indicate that recreational soccer may result in improvement in cardiovascular function, body composition and functional ability, although no significant changes were observed in postural balance. Recreational soccer should be considered an alternative exercise modality for untrained, healthy or unhealthy middle-aged and older adults of both sexes to maintain an active lifestyle and mitigate a wide array of physical and physiological age-related changes.
Publisher: Springer Science and Business Media LLC
Date: 25-01-2022
DOI: 10.1186/S13102-022-00405-5
Abstract: This study compares ball in play (BiP) analyses and both whole game (WG) and quarter averaged data for physical and technical demands of sub-elite Australian football (AF) players competing in the West Australian Football League across playing positions. Microsensor data were collected from 33 male AF players in one club over 19 games of the 2019 season. BiP time periods and technical performance data (e.g., kicks) were acquired from the Ch ion Data timeline of statistics, and time matched to the microsensor data. Linear mixed modelling was utilised to establish differences between maximum BiP periods and averaged data. The analyses indicated significant differences ( p 0.0001) between maximum BiP and WG data for all metrics and all playing position (half-line, key position, and midfielders). The percentage difference was greatest for very high-speed running (171–178%), accelerations (136–142%), high-intensity efforts (128–139%), and high-speed running (134–147%) compared to PlayerLoad™ (50–56%) and total running distance (56–59%). No significant ( p 0.05) differences were evident for maximum BiP periods when they were compared between playing positions (i.e., half line vs key position vs midfield). Significant ( p 0.0001) differences were also noted between maximum BiP phases and averaged data across all 4 quarters, for each microsensor metric, and all playing positions. Technical actions (e.g., kicks and handballs) were observed in 21–48% of maximum BiP phases, depending on playing positions and microsensor metric assessed, with kicks and handballs constituting 50% of all actions performed. These results show the BiP analysis method provides a more accurate assessment of the physical demands and technical actions performed by AF players, which are underestimated when using averaged data. The data presented in this study may be used to inform the design and monitoring of representative practice, ensuring that athletes are prepared for both the physical and technical demands of the most demanding passages of play.
Publisher: SAGE Publications
Date: 06-05-2023
DOI: 10.1177/17479541221095941
Abstract: Despite increasing popularity of cerebral palsy (CP) football (para football) worldwide, there are limited data available describing effective attacking strategies that lead to goals. The purpose of this research was to investigate the most frequent methods of ball repossession, distribution and movement patterns that successfully led to goals scored in open play of CP football. Video footage of all goals (n = 167) during the Australian National CP Football Ch ionships in 2017 and 2018 were analysed using SportsCode software. Most goals (89.8%) were scored from open play, with the most effective mode of ball delivery identified as being direct play, of four or less passes, to create an opportunity to score. More goals were scored during the first half of games (54.9%), with a majority of goals (67.1%) scored from a region that encompasses the entire penalty area (Zone 1). The findings from the research conclude that tactically, coaches could capitalise on restarts by moving the ball quickly in four or less passes into the middle of the penalty area, to increase their chances of scoring goals in CP football.
Publisher: Wiley
Date: 08-01-2018
DOI: 10.1111/SMS.13007
Abstract: Muscular fatigue and interlimb strength asymmetry are factors known to influence hamstring injury risk however, limb-specific exacerbation of knee flexor (hamstrings) torque production after fatiguing exercise has previously been ignored. To investigate changes in muscular force production before and after sport-specific (repeated-sprint) and non-specific (knee extension-flexion) fatiguing exercise, and explore the sensitivity and specificity of isokinetic endurance (ie, muscle-specific) and single-leg vertical jump (ie, whole limb) tests to identify previous hamstring injury. Twenty Western Australia State League footballers with previous unilateral hamstring injury and 20 players without participated. Peak concentric knee extensor and flexor (180°∙s
Publisher: Cambridge University Press (CUP)
Date: 28-11-2017
DOI: 10.1017/JIE.2016.23
Abstract: Participation in sport during high school has been linked with a range of educational and developmental benefits. However, there is limited research investigating the benefits of participation in sport from the perspective of Aboriginal former youth sports participants. The purpose of the current research was to investigate how participation in sports impacted on the educational engagement, aspirations and development of Aboriginal former youth sports participants. Interpretive phenomenological analysis of semistructured interviews with six participants was conducted. Analysis was conducted utilising the Positive Youth Development asset framework. Participants reported a positive influence for their participation in youth sport on key education related assets including, achievement motivation, school engagement and relationships with teachers. Participants also reflected upon the role of participation in youth sports in the development of empowerment and positive identity assets. For these participants, involvement in youth sport had clear educational and developmental benefits. It is concluded that youth sports participation is one developmental context with the potential to have a positive influence on the educational and developmental trajectory of Aboriginal youth.
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 03-11-2021
Publisher: Springer Science and Business Media LLC
Date: 12-2021
DOI: 10.1186/S40798-021-00391-X
Abstract: Australian Football is a fast paced, intermittent sport, played by both male and female populations. The aim of this systematic review was to compare male and female Australian Football players, competing at elite and sub-elite levels, for running performance during Australian Football matches based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Medline, SPORTDiscus, and Web of Science searches, using search terms inclusive of Australian Football, movement demands and microsensor technology, returned 2535 potential manuscripts, of which 33 were included in the final analyses. Results indicated that male athletes performed approximately twice the total running distances of their female counterparts, which was likely due to the differences in quarter length (male elite = 20 min, female elite = 15 min (plus time-on). When expressed relative to playing time, the differences between males and females somewhat diminished. However, high-speed running distances covered at velocities 14.4 km·h −1 ( 4 m·s −1 ) were substantially greater (≥ 50%) for male than female players. Male and female players recorded similar running intensities during peak periods of play of shorter duration (e.g., around 1 min), but when the analysis window was lengthened, females showed a greater decrement in running performance. These results suggest that male players should be exposed to greater training volumes, whereas training intensities should be reasonably comparable across male and female athletes.
Publisher: Georg Thieme Verlag KG
Date: 20-01-2020
DOI: 10.1055/A-1073-7851
Abstract: The match-to-match variability of external loads in National Premier League soccer competition was determined. Global positioning systems (GPS) data were collected from 20 sub-elite soccer players over 2-10 matches from a single season. Match data were collected from during one season. Twenty-six matches were recorded and 10 were utilised within final match-to-match analysis based on stringent data selection criteria. A symmetric moving average algorithm was applied to GPS data over specific time windows (1, 5, 10, 60, 300 and 600 s), and maximal speed and metabolic power values then calculated at each time interval during each match. Match-to-match coefficients of variation (CV) were greatest for sprint-speed running distance (36.3-43.6%) when comparing 2 vs. 10 matches. CVs for maximal mean speed (4.9-7.0%) and metabolic power (4.4-9.6%) ranged from good to moderate. As the variability of absolute high-speed distance values are greater, and therefore less reliable, their use as indicators of performance is reduced, suggesting that maximal mean analyses could be used as an alternative in the assessment of match running performance during competitive matches.
Publisher: Springer Science and Business Media LLC
Date: 03-2022
DOI: 10.1186/S13102-022-00425-1
Abstract: This study compared the physical demands and effect of field location for different phases of play (offence, defence and contested), and examined the physical and technical demands of successful and unsuccessful phases of play during Australian Football matches. Global positioning system (GPS) and technical performance data were collected from 32 male Australian Football players in one club over 19 games in the 2019 season. The GPS data was aligned with phases of play acquired using Ch ion Data. Linear mixed models were used to detect differences between phases of play and field location which were further contextualized using Cohen’s d effect size. Physical demands were greatest ( p 0.001) in defensive phases for backs (ES 0.61 to 1.42), and offensive phases for midfielders (ES 0.65 to 0.96) and forwards (ES 0.84 to 1.94). Additionally, distance and high-speed running were lowest in contested phases irrespective of playing position. Distance and high-speed running were greatest in larger field locations (e.g., full ground). No pattern was evident for accelerations or decelerations. Successful offensive plays demonstrated greater physical and technical outputs for midfielders and forwards, whereas the opposite was found for backs. Physical output was largely greater in unsuccessful defensive plays for all positions however, the rate of tackles and marks was greater during successful defence. These findings enable a greater understanding of the demands of Australian Football matches, and can be utilized to inform both representative training design, and the evaluation of player performance.
Publisher: Georg Thieme Verlag KG
Date: 22-01-2020
DOI: 10.1055/A-1065-2100
Abstract: The quantification of maximal mean speed (MMS), maximal mean metabolic power (MMP
Publisher: SAGE Publications
Date: 13-10-2022
DOI: 10.1177/17479541221129902
Abstract: This study evaluated the physical demands and specificity of small-sided games (SSGs) compared to matches in Australian Football (AF). Global positioning system (GPS) data was collected on 48 AF players from 39 matches and 28 training sessions across two seasons. Match data was analysed using the ball in play (BiP) method with the maximum BiP period for each match (e.g. the BiP with greatest meters per minute), for each variable (relative distance, high-speed running, and accelerations) averaged for each player to establish maximal means as reference points. Intensity of all BiP periods in matches and SSGs was compared (e.g. a BiP period recorded at 100 m·min −1 by a player with a maximal mean of 200 m·min −1 , was classified as a 50% effort). This was categorised in 10% intensity buckets, and compared between matches and SSGs using linear mixed models and Cohen's d effect sizes. Distance was greater ( p 0.01) in the 20–49% buckets for matches and in the 60–89% buckets ( p 0.001) for SSGs. For high-speed running and accelerations, matches were greater ( p 0.001) in the 0–9% bucket but SSGs were greater ( p 0.001) in buckets from 20 to 49%. At the in idual level, 37–49% of the players did not record any SSGs efforts in buckets of to ≥90% across GPS variables. SSGs appear to provide a sub-optimal training stimulus, if the aim is to prepare AF players for the highest intensity periods of play recorded during matches, thus may under-prepare players for the intensity demands of AF matches.
Publisher: Frontiers Media SA
Date: 21-05-2021
DOI: 10.3389/FPSYG.2021.667628
Abstract: Specialist Sport Programs (SSPs) are an underexamined activity that combines the best features of two different contexts for adolescent development: a sporting program and a secondary school. A mixed-methods study was conducted to determine the influence of participation in SSPs on the educational outcomes of lower secondary students in Western Australia. The results demonstrated a significant improvement in specialist students' mean grade for Mathematics over the course of a year, while their mean grade for all other subjects, and their level of engagement with school, remained stable over the same period of time. Semi-structured interviews were also conducted with key stakeholders (e.g., specialist students and their parents, as well as teachers and graduates of the SSPs). Overall, the participants felt that SSPs had a positive influence on students' engagement with school, and that this engagement had a positive impact on their academic achievement. Taken together, the results of this research suggest that there is a role for SSPs in promoting positive educational outcomes for lower secondary students attending public schools located in low SES areas.
No related grants have been discovered for Fadi Maayah.