- Talpey, Scott, Young, Warren, Twomey, Dara, Doyle, Tim, Elliott, Bruce, Lloyd, David, Finch, Caroline
- Authors: Talpey, Scott , Young, Warren , Twomey, Dara , Doyle, Tim , Elliott, Bruce , Lloyd, David , Finch, Caroline
- Date: 2014
- Type: Text , Journal article
- Relation: Journal of Australian Strength & Conditioning Vol. 22, no. 5 (2014), p. 176-178
- Full Text: false
- Reviewed:
- Description: The article presents research on the necessary data on change of direction (CODS), agility standards and sprint for Australian football (AF) coaches. Results of the study include the significance of specific information to AF players, the use of this information in highlighting the weaknesses and strengths among the players, and the implementation of certain training for CODS improvement.
Challenges in the development of standards for synthetic turf for Australian football and cricket
- Twomey, Dara, Otago, Leonie, Saunders, Natalie
- Authors: Twomey, Dara , Otago, Leonie , Saunders, Natalie
- Date: 2010
- Type: Text , Journal article
- Relation: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology Vol. , no. (2010), p. 9
- Full Text:
- Reviewed:
- Description: Given the escalating drought conditions in Australia, synthetic surfaces have recently been explored as a viable surface option for community-level Australian football–cricket ovals. The vast majority of Australian football ovals are transformed into cricket pitches during the football off-season and hence the characteristics of both sports had to be duly considered in the development of standards that could be tested in a laboratory setting, for a synthetic turf surface. This paper describes the data collection and test methods undertaken in the development of the standards for synthetic surface use in Australian football and cricket. The paper also discusses the issues and challenges encountered during the development of standards for multi-sport synthetic surfaces to ensure player safety while maintaining the performance characteristics of both sports. Surface property and ball interaction tests were undertaken on natural playing surfaces, both in situ and in the laboratory to determine the properties of the current playing surface for each sport. This paper highlights the importance of careful consideration of the characteristics of both games and the use of equipment from both sports in the testing methods. The standards described in this paper have now been accepted by the Australian Football League and Cricket Australia and the product approval process and use of synthetic surfaces for Australian football and cricket is imminent.
- Authors: Twomey, Dara , Otago, Leonie , Saunders, Natalie
- Date: 2010
- Type: Text , Journal article
- Relation: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology Vol. , no. (2010), p. 9
- Full Text:
- Reviewed:
- Description: Given the escalating drought conditions in Australia, synthetic surfaces have recently been explored as a viable surface option for community-level Australian football–cricket ovals. The vast majority of Australian football ovals are transformed into cricket pitches during the football off-season and hence the characteristics of both sports had to be duly considered in the development of standards that could be tested in a laboratory setting, for a synthetic turf surface. This paper describes the data collection and test methods undertaken in the development of the standards for synthetic surface use in Australian football and cricket. The paper also discusses the issues and challenges encountered during the development of standards for multi-sport synthetic surfaces to ensure player safety while maintaining the performance characteristics of both sports. Surface property and ball interaction tests were undertaken on natural playing surfaces, both in situ and in the laboratory to determine the properties of the current playing surface for each sport. This paper highlights the importance of careful consideration of the characteristics of both games and the use of equipment from both sports in the testing methods. The standards described in this paper have now been accepted by the Australian Football League and Cricket Australia and the product approval process and use of synthetic surfaces for Australian football and cricket is imminent.
Challenges in the development of standards for synthetic turf for Australian football and cricket
- Twomey, Dara, Otago, Leonie, Saunders, Natalie
- Authors: Twomey, Dara , Otago, Leonie , Saunders, Natalie
- Date: 2011
- Type: Text , Journal article
- Relation: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology Vol. 225, no. 2 (June 2011 2011), p. 93-101
- Full Text: false
- Reviewed:
- Description: Given the escalating drought conditions in Australia, synthetic surfaces have recently been explored as a viable surface option for community-level Australian football-cricket ovals. The vast majority of Australian football ovals are transformed into cricket pitches during the football off-season and hence the characteristics of both sports had to be duly considered in the development of standards that could be tested in a laboratory setting, for a synthetic turf surface. This paper describes the data collection and test methods undertaken in the development of the standards for synthetic surface use in Australian football and cricket. The paper also discusses the issues and challenges encountered during the development of standards for multi-sport synthetic surfaces to ensure player safety while maintaining the performance characteristics of both sports. Surface property and ball interaction tests were undertaken on natural playing surfaces, both in situ and in the laboratory to determine the properties of the current playing surface for each sport. This paper highlights the importance of careful consideration of the characteristics of both games and the use of equipment from both sports in the testing methods. The standards described in this paper have now been accepted by the Australian Football League and Cricket Australia and the product approval process and use of synthetic surfaces for Australian football and cricket is imminent.
Coding OSICS sports injury diagnoses in epidemiological studies : Does the background of the coder matter?
- Finch, Caroline, Orchard, John, Twomey, Dara, Saleem, Muhammad Saad, Ekegren, Christina, Lloyd, David, Elliott, Bruce
- Authors: Finch, Caroline , Orchard, John , Twomey, Dara , Saleem, Muhammad Saad , Ekegren, Christina , Lloyd, David , Elliott, Bruce
- Date: 2012
- Type: Text , Journal article
- Relation: British Journal of Sports Medicine, Vol.48, p.552-556.
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Full Text:
- Reviewed:
- Description: Objective: To compare Orchard Sports Injury Classification System (OSICS-10) sports medicine diagnoses assigned by a clinical and non-clinical coder. Design: Assessment of intercoder agreement. Setting: Community Australian football. Participants: 1082 standardised injury surveillance records. Main outcome measurements: Direct comparison of the four-character hierarchical OSICS-10 codes assigned by two independent coders (a sports physician and an epidemiologist). Adjudication by a third coder (biomechanist). Results: The coders agreed on the first character 95% of the time and on the first two characters 86% of the time. They assigned the same four-digit OSICS-10 code for only 46% of the 1082 injuries. The majority of disagreements occurred for the third character; 85% were because one coder assigned a non-specific 'X' code. The sports physician code was deemed correct in 53% of cases and the epidemiologist in 44%. Reasons for disagreement included the physician not using all of the collected information and the epidemiologist lacking specific anatomical knowledge. Conclusions: Sports injury research requires accurate identification and classification of specific injuries and this study found an overall high level of agreement in coding according to OSICS-10. The fact that the majority of the disagreements occurred for the third OSICS character highlights the fact that increasing complexity and diagnostic specificity in injury coding can result in a loss of reliability and demands a high level of anatomical knowledge. Injury report form details need to reflect this level of complexity and data management teams need to include a broad range of expertise. Copyright Article author (or their employer) 2012.
- Authors: Finch, Caroline , Orchard, John , Twomey, Dara , Saleem, Muhammad Saad , Ekegren, Christina , Lloyd, David , Elliott, Bruce
- Date: 2012
- Type: Text , Journal article
- Relation: British Journal of Sports Medicine, Vol.48, p.552-556.
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Full Text:
- Reviewed:
- Description: Objective: To compare Orchard Sports Injury Classification System (OSICS-10) sports medicine diagnoses assigned by a clinical and non-clinical coder. Design: Assessment of intercoder agreement. Setting: Community Australian football. Participants: 1082 standardised injury surveillance records. Main outcome measurements: Direct comparison of the four-character hierarchical OSICS-10 codes assigned by two independent coders (a sports physician and an epidemiologist). Adjudication by a third coder (biomechanist). Results: The coders agreed on the first character 95% of the time and on the first two characters 86% of the time. They assigned the same four-digit OSICS-10 code for only 46% of the 1082 injuries. The majority of disagreements occurred for the third character; 85% were because one coder assigned a non-specific 'X' code. The sports physician code was deemed correct in 53% of cases and the epidemiologist in 44%. Reasons for disagreement included the physician not using all of the collected information and the epidemiologist lacking specific anatomical knowledge. Conclusions: Sports injury research requires accurate identification and classification of specific injuries and this study found an overall high level of agreement in coding according to OSICS-10. The fact that the majority of the disagreements occurred for the third OSICS character highlights the fact that increasing complexity and diagnostic specificity in injury coding can result in a loss of reliability and demands a high level of anatomical knowledge. Injury report form details need to reflect this level of complexity and data management teams need to include a broad range of expertise. Copyright Article author (or their employer) 2012.
Do hard playing fields increase the risk of injury in community level Australian football?
- Twomey, Dara, Otago, Leonie, Finch, Caroline, Chivers, I., Orchard, John
- Authors: Twomey, Dara , Otago, Leonie , Finch, Caroline , Chivers, I. , Orchard, John
- Date: 2008
- Type: Text , Conference paper
- Relation: Paper presented at ASICS Conference of science and medicine in sport 2008, Hamilton Island : 16th-18th October 2008
- Full Text: false
- Description: Introduction: Certain ground conditions, including hardness, have been associated with an increased injury risk. Many sporting grounds have been deemed unplayable based on hardness measures and subsequently closed. However, most research linking injury to ground conditions has been based on subjective observations or focussed at high performance venues. The aim of this study was to identify the relationship between ground hardness and injury incidence in community level Australian football. Methodology: Measurements of ground hardness, using the Clegg hammer, were recorded on eight community level football grounds between 4 and 8 times during the 2007 season. Injury data was collected by trained data collectors over the season. The 1st Clegg hammer drop was used as the hardness measure, and injuries were ranked as ‘likely’, ‘possibly’, and ‘unlikely’ to be related to grounds by three independent assessors. Results: 130 injuries were recorded at the grounds tested. The Clegg hammer measures ranged from 55 to 134 gravities (g), with four injuries sustained at readings over 120 × g. Of the 130 injuries, 12 were classified as ‘likely’ to be related to ground conditions, 29 ‘possibly’ related, 75 ‘unlikely’ and 14 unknown due to incomplete details. None of the ‘likely’ injuries were sustained on readings over 120 × g. No significant relationships were found between ground hardness and any injury profiles (0.02 < r < 0.14, p < 0.01). Conclusions: Presently, sporting grounds are being closed with hardness readings exceeding 120 × g. The results of this study provide some evidence to challenge this, however, due to low injury rates further research with a larger cohort is necessary.
Ground hardness and injury in community level Australian football
- Twomey, Dara, Finch, Caroline, Lloyd, David, Elliott, Bruce, Doyle, Tim
- Authors: Twomey, Dara , Finch, Caroline , Lloyd, David , Elliott, Bruce , Doyle, Tim
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol.15, no. (4), p.305-310
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Full Text:
- Reviewed:
- Description: Objective: To describe the risk and details of injuries associated with ground hardness in community level Australian football (AF). Design: Prospective injury surveillance with periodic objective ground hardness measurement. Methods: 112 ground hardness assessments were undertaken using a Clegg hammer at nine locations across 20 grounds, over the 2007 and 2008 AF seasons. Details of 352 injuries sustained by community level players on those grounds were prospectively collected as part of a large randomised controlled trial. The ground location of the injury was matched to the nearest corresponding ground hardness Clegg hammer readings, in gravities (g), which were classified from unacceptably low (<30 g) to unacceptably high hardness (>120 g). Results: Clegg hammer readings ranged from 25 to 301 g. Clegg hammer hardness categories from low/normal to high/normal were associated with the majority of injuries, with only 3.7% (13 injuries) on unacceptably high hardness and 0.3% (1 injury) on the unacceptably low hardness locations. Relative to the preferred range of hardness, the risk of sustaining an injury on low/normal hardness locations was 1.31 (95%CI: 1.06-1.62) times higher and 1.82 (95%CI: 1.17-2.85) times higher on locations with unacceptably high hardness. The more severe injuries occurred with low/normal ground hardness. Conclusions: Despite the low number of injuries, the risk of sustaining an injury on low/normal and unacceptably hard grounds was significantly greater than on the preferred range of hardness. Notably, the severity of the injuries sustained on unacceptably hard grounds was lower than for other categories of hardness. © 2012 Sports Medicine Australia.
- Authors: Twomey, Dara , Finch, Caroline , Lloyd, David , Elliott, Bruce , Doyle, Tim
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol.15, no. (4), p.305-310
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Full Text:
- Reviewed:
- Description: Objective: To describe the risk and details of injuries associated with ground hardness in community level Australian football (AF). Design: Prospective injury surveillance with periodic objective ground hardness measurement. Methods: 112 ground hardness assessments were undertaken using a Clegg hammer at nine locations across 20 grounds, over the 2007 and 2008 AF seasons. Details of 352 injuries sustained by community level players on those grounds were prospectively collected as part of a large randomised controlled trial. The ground location of the injury was matched to the nearest corresponding ground hardness Clegg hammer readings, in gravities (g), which were classified from unacceptably low (<30 g) to unacceptably high hardness (>120 g). Results: Clegg hammer readings ranged from 25 to 301 g. Clegg hammer hardness categories from low/normal to high/normal were associated with the majority of injuries, with only 3.7% (13 injuries) on unacceptably high hardness and 0.3% (1 injury) on the unacceptably low hardness locations. Relative to the preferred range of hardness, the risk of sustaining an injury on low/normal hardness locations was 1.31 (95%CI: 1.06-1.62) times higher and 1.82 (95%CI: 1.17-2.85) times higher on locations with unacceptably high hardness. The more severe injuries occurred with low/normal ground hardness. Conclusions: Despite the low number of injuries, the risk of sustaining an injury on low/normal and unacceptably hard grounds was significantly greater than on the preferred range of hardness. Notably, the severity of the injuries sustained on unacceptably hard grounds was lower than for other categories of hardness. © 2012 Sports Medicine Australia.
Level of agreement between field-based data collectors in a large scale injury prevention randomised controlled trial
- Twomey, Dara, Finch, Caroline, Doyle, Tim, Elliott, Bruce, Lloyd, David
- Authors: Twomey, Dara , Finch, Caroline , Doyle, Tim , Elliott, Bruce , Lloyd, David
- Date: 2011
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 14, no. 2 (2011), p. 121-125
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Full Text:
- Reviewed:
- Description: In sports injury prevention field trials, data collectors are often club volunteers with considerable knowledge of the game but with limited detailed medical backgrounds or knowledge of formal scientific processes. The aim of this paper is to determine the agreement among trained primary data collectors (PDCs) with a sport science background and no prior involvement in data collection in a large randomised controlled trial. During the 'Preventing Australian Football Injury through eXercise' (PAFIX) project, player participation and injury data were collected by trained PDCs at training and games over the 2007 and 2008 playing seasons in 40 community level Australian football teams. PDC-collected data relating to player exposure and whether or not a player sustained an injury and subsequently left the field of play was compared to the same information from independent observers (IOs) who attended one randomly selected game for each of the 40 teams. There was 98% agreement between the PDC and the IO on game details (i.e., date, time, grade and score), 79% (ICC 0.9, 95% CI 0.85-0.95) agreement on the number of players per game and 76% (ICC 0.8, 95% CI 0.69-0.91) agreement on the number of injuries sustained in the games. There was 100% agreement on whether the player left the field for all injuries. This study found that exercise and sport science students are reliable data collectors in sports injury fieldwork studies. (C) 2010 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
- Authors: Twomey, Dara , Finch, Caroline , Doyle, Tim , Elliott, Bruce , Lloyd, David
- Date: 2011
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 14, no. 2 (2011), p. 121-125
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Full Text:
- Reviewed:
- Description: In sports injury prevention field trials, data collectors are often club volunteers with considerable knowledge of the game but with limited detailed medical backgrounds or knowledge of formal scientific processes. The aim of this paper is to determine the agreement among trained primary data collectors (PDCs) with a sport science background and no prior involvement in data collection in a large randomised controlled trial. During the 'Preventing Australian Football Injury through eXercise' (PAFIX) project, player participation and injury data were collected by trained PDCs at training and games over the 2007 and 2008 playing seasons in 40 community level Australian football teams. PDC-collected data relating to player exposure and whether or not a player sustained an injury and subsequently left the field of play was compared to the same information from independent observers (IOs) who attended one randomly selected game for each of the 40 teams. There was 98% agreement between the PDC and the IO on game details (i.e., date, time, grade and score), 79% (ICC 0.9, 95% CI 0.85-0.95) agreement on the number of players per game and 76% (ICC 0.8, 95% CI 0.69-0.91) agreement on the number of injuries sustained in the games. There was 100% agreement on whether the player left the field for all injuries. This study found that exercise and sport science students are reliable data collectors in sports injury fieldwork studies. (C) 2010 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
Preventing lower limb injuries : Is the latest evidence being translated into the football field?
- Twomey, Dara, Finch, Caroline, Roediger, E., Lloyd, David
- Authors: Twomey, Dara , Finch, Caroline , Roediger, E. , Lloyd, David
- Date: 2009
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 12, no. 4 (2009), p. 452-456
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Full Text:
- Reviewed:
- Description: There is accumulating international evidence that lower limb injuries in sport can be prevented through targeted training but the extent to which this knowledge has been translated to real-world sporting practice is not known. A semi-structured questionnaire of all coaches from the nine Sydney Australian Football League Premier Division teams was conducted. Information was sought about their knowledge and behaviours in relation to delivering training programs, including their uptake of the latest scientific evidence for injury prevention. Direct observation of a sample of the coach-delivered training sessions was also undertaken to validate the questionnaire. Coaches ranked training session elements directly related to the game as being of most importance. They strongly favoured warming-up and cooling-down as injury prevention measures but changing direction and side-stepping training was considered to be of little/no importance for safety. Only one-third believed that balance training had some importance for injury prevention, despite accumulating scientific evidence to the contrary. Drills, set play, ball handling and kicking skills were all considered to be of least importance to injury prevention. These views were consistent with the content of the observed coach-led training sessions. In conclusion, current football training sessions do not give adequate attention to the development of skills most likely to reduce the risk of lower limb injury in players. There is a need to improve the translation of the latest scientific evidence about effective injury prevention into coaching practices. © 2008 Sports Medicine Australia.
- Description: 2003006500
Priorities for investment in injury prevention in community Australian football
- Finch, Caroline, Gabbe, Belinda, White, Peta, Lloyd, David, Twomey, Dara, Donaldson, Alex, Elliott, Bruce, Cook, Jill
- Authors: Finch, Caroline , Gabbe, Belinda , White, Peta , Lloyd, David , Twomey, Dara , Donaldson, Alex , Elliott, Bruce , Cook, Jill
- Date: 2013
- Type: Text , Journal article
- Relation: Clinical journal of sport medicine Vol. 23, no. 6 (November 2013 2013), p. 430-438
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Relation: http://purl.org/au-research/grants/nhmrc/565907
- Full Text:
- Reviewed:
- Description: Objective:High-quality sport-specific information about the nature, type, cause, and frequency of injuries is needed to set injury prevention priorities. This article describes the type, nature, and mechanism of injuries in community Australian Football (community AF) players, as collected through field-based monitoring of injury in teams of players.Data Sources:Compilation of published prospectively collected injury data from 3 studies in junior community AF (1202 injuries in 1950+ players) and 3 studies in adult community AF (1765 injuries in 2265 players). This was supplemented with previously unpublished data from the most recent adult community AF injury cohort study conducted in 2007 to 2008. Injuries were ranked according to most common body regions, nature of injury, and mechanism.Main Results:In all players, lower limb injuries were the most frequent injury in community AF and were generally muscle strains, joint sprains, and superficial injuries. These injuries most commonly resulted from incidental contact with other players, or from overexertion. Upper limb injuries were less common but included fractures, strains, and sprains that were generally caused by incidental contact between players and the result of players falling to the ground.Conclusions:Lower limb injuries are common in community AF and could have an adverse impact on sustained participation in the game. Based on what is known about their mechanisms, it is likely that a high proportion of lower limb injuries could be prevented and they should therefore be a priority for injury prevention in community AF.
- Authors: Finch, Caroline , Gabbe, Belinda , White, Peta , Lloyd, David , Twomey, Dara , Donaldson, Alex , Elliott, Bruce , Cook, Jill
- Date: 2013
- Type: Text , Journal article
- Relation: Clinical journal of sport medicine Vol. 23, no. 6 (November 2013 2013), p. 430-438
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Relation: http://purl.org/au-research/grants/nhmrc/565907
- Full Text:
- Reviewed:
- Description: Objective:High-quality sport-specific information about the nature, type, cause, and frequency of injuries is needed to set injury prevention priorities. This article describes the type, nature, and mechanism of injuries in community Australian Football (community AF) players, as collected through field-based monitoring of injury in teams of players.Data Sources:Compilation of published prospectively collected injury data from 3 studies in junior community AF (1202 injuries in 1950+ players) and 3 studies in adult community AF (1765 injuries in 2265 players). This was supplemented with previously unpublished data from the most recent adult community AF injury cohort study conducted in 2007 to 2008. Injuries were ranked according to most common body regions, nature of injury, and mechanism.Main Results:In all players, lower limb injuries were the most frequent injury in community AF and were generally muscle strains, joint sprains, and superficial injuries. These injuries most commonly resulted from incidental contact with other players, or from overexertion. Upper limb injuries were less common but included fractures, strains, and sprains that were generally caused by incidental contact between players and the result of players falling to the ground.Conclusions:Lower limb injuries are common in community AF and could have an adverse impact on sustained participation in the game. Based on what is known about their mechanisms, it is likely that a high proportion of lower limb injuries could be prevented and they should therefore be a priority for injury prevention in community AF.
The development of guidelines for using synthetic surfaces in Australian football and cricket
- Twomey, Dara, Otago, Leonie, Saunders, Natalie
- Authors: Twomey, Dara , Otago, Leonie , Saunders, Natalie
- Date: 2009
- Type: Text , Conference paper
- Relation: Paper presented at 2009 Australia Conference of Science and Medicine in Sport, Seventh National Physical Activity Conference, Sixth National Sports Injury Prevention Conference, Be Active '09, Brisbane, Queensland : 14th-17th October 2009
- Full Text: false
- Description: Given the current climatic conditions, synthetic surfaces have been explored as a viable option for Australian football/cricket ovals in drought regions in Australia. The aim of this paper is to describe the processes required prior to the installation of a synthetic surface to ensure player safety, and challenges in the development of criteria for a multi-sport surface. Artificial surfaces have been used for many sports worldwide for decades, but it is only since the late 1990s that the “third generation” turf surfaces made of long and more widely spread fibres of propylene or polyethylene filled with rubber granules have been adopted. These surfaces have proved satisfactory for some football codes and have grown in popularity in many parts of the world. Sports, such as, soccer, rugby union and hockey have developed specific criteria for synthetic turf manufacturing companies to satisfy prior to the installation of a field. In these instances, although it may be used by other sports after installation, the product is only obliged to meet the requirements set by one governing body. In Australia, however, the majority of Australian football ovals are used for cricket during the football off season. Therefore, in the development of criteria for player safety and to maintain the characteristics of the games on natural turf both Australian football and cricket had to be duly considered. A study was undertaken in 2008 to establish a set of criteria which would enable artificial surfaces to replicate the playing performance of natural turf for Australian football and cricket. Testing was undertaken on natural playing surfaces from elite to community level. Tests included hardness, traction, friction, abrasion, ball rebound, ball roll, angled ball behaviour and the establishment of a critical fall height. Australian football and cricket ball were used in the ball interaction tests and the studs/cleats used in both sports were tested for rotational traction. A climatic chamber was also used to determine the effects of different temperatures on the playing characteristics. Data from previous research employing the same protocols for surface characteristics were also considered in the development of a set of criteria. This research highlighted the important factors that need to be optimised for synthetic playing fields to be to be safe and suitable for use. This criteria has now been accepted by the Australian Football League and Cricket Australia and the use of synthetic surfaces for Australian football and cricket is imminent.
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