A conceptual model of physical performance in Australian Football
- Authors: Mooney, Mitchell
- Date: 2013
- Type: Text , Thesis , PhD
- Full Text:
- Description: Objective: The objective of this project was to identify the relative influence of valid physical parameters to elite Australian Football performance. Methods: Data was collected on match performance variables (i.e. coaches’ votes, number of ball disposals, champion data rank), match exercise intensity measures (m∙min-1, m∙min-1 above and below 15 km∙h-1 and Load™∙min-1) and physical capacities (yo-yo intermittent recovery test level 2, maximum oxygen uptake, running economy, relative aerobic intensity, maximal aerobic speed and maximal accumulated oxygen deficit) on elite and recreational Australian footballers. These variables were modelled to determine the logical sequence and relative importance towards match performance. Results: The results indicate a sequential physical path to Australian Football performance. The yo-yo intermittent recovery test (level 2) performance influenced match exercise intensity (m∙min-1 >15 km∙h-1& Load™∙min-1) which in turn, affected Australian Football performance (number of ball disposals and coaches’ votes). This sequence was altered by experience, playing position and neuromuscular fatigue. The number of interchange rotations also influenced match exercise intensity throughout the match. Furthermore, the yo-yo intermittent recovery test (level 2) was found to be determined by a complex interaction of physical capacities. However, yo-yo intermittent recovery (level 2) performance was most influenced by maximum oxygen uptake, relative aerobic intensity and maximum aerobic speed. Conclusion: This dissertation showed Australian Football performance is a complex and dynamic system influenced by many variables interacting with each other in a sequential path. Sports scientists and coaches may utilise this information as a framework to evaluate Australian Football performance matches.
- Description: Doctor of Philosophy
- Authors: Mooney, Mitchell
- Date: 2013
- Type: Text , Thesis , PhD
- Full Text:
- Description: Objective: The objective of this project was to identify the relative influence of valid physical parameters to elite Australian Football performance. Methods: Data was collected on match performance variables (i.e. coaches’ votes, number of ball disposals, champion data rank), match exercise intensity measures (m∙min-1, m∙min-1 above and below 15 km∙h-1 and Load™∙min-1) and physical capacities (yo-yo intermittent recovery test level 2, maximum oxygen uptake, running economy, relative aerobic intensity, maximal aerobic speed and maximal accumulated oxygen deficit) on elite and recreational Australian footballers. These variables were modelled to determine the logical sequence and relative importance towards match performance. Results: The results indicate a sequential physical path to Australian Football performance. The yo-yo intermittent recovery test (level 2) performance influenced match exercise intensity (m∙min-1 >15 km∙h-1& Load™∙min-1) which in turn, affected Australian Football performance (number of ball disposals and coaches’ votes). This sequence was altered by experience, playing position and neuromuscular fatigue. The number of interchange rotations also influenced match exercise intensity throughout the match. Furthermore, the yo-yo intermittent recovery test (level 2) was found to be determined by a complex interaction of physical capacities. However, yo-yo intermittent recovery (level 2) performance was most influenced by maximum oxygen uptake, relative aerobic intensity and maximum aerobic speed. Conclusion: This dissertation showed Australian Football performance is a complex and dynamic system influenced by many variables interacting with each other in a sequential path. Sports scientists and coaches may utilise this information as a framework to evaluate Australian Football performance matches.
- Description: Doctor of Philosophy
Association between leg power and sprinting technique with 20-m sprint performance in elite junior australian football players
- Young, Warren, Grace, Steve, Talpey, Scott
- Authors: Young, Warren , Grace, Steve , Talpey, Scott
- Date: 2014
- Type: Text , Journal article
- Relation: International Journal of Sports Science and Coaching Vol. 9, no. 5 (2014), p. 1153-1160
- Full Text:
- Reviewed:
- Description: The main purpose of this study was to determine the association between leg power and sprint technique with 20-m sprint performance. Seventy-seven elite junior Australian Rules football players were assessed on a 20-m sprint test, a countermovement jump (CMJ) and a two bound test, and on a new method of quantifying sprint technique from simple video recordings. Technique assessment involved rating 14 points on a scale from 1-5. Players were median-split into faster and slower groups based on their 20-m times, and they were compared for differences in leg power and technique. The faster group was significantly better (p<0.05) in the two-bound test (5.2%) and the technique score (8.2%), but not in the CMJ (p>0.05). A multiple regression indicated that the two-bound test and technique accounted for 37.7% of the variance associated with the 20-m sprint time (p<0.05). It was concluded that the technique assessment tool captured some important characteristics of 20-m sprint performance and could potentially be used to profile or monitor athletes. Further the two-bound test is a more relevant test for developing athletes because of its specificity to sprinting, compared to the CMJ.
- Authors: Young, Warren , Grace, Steve , Talpey, Scott
- Date: 2014
- Type: Text , Journal article
- Relation: International Journal of Sports Science and Coaching Vol. 9, no. 5 (2014), p. 1153-1160
- Full Text:
- Reviewed:
- Description: The main purpose of this study was to determine the association between leg power and sprint technique with 20-m sprint performance. Seventy-seven elite junior Australian Rules football players were assessed on a 20-m sprint test, a countermovement jump (CMJ) and a two bound test, and on a new method of quantifying sprint technique from simple video recordings. Technique assessment involved rating 14 points on a scale from 1-5. Players were median-split into faster and slower groups based on their 20-m times, and they were compared for differences in leg power and technique. The faster group was significantly better (p<0.05) in the two-bound test (5.2%) and the technique score (8.2%), but not in the CMJ (p>0.05). A multiple regression indicated that the two-bound test and technique accounted for 37.7% of the variance associated with the 20-m sprint time (p<0.05). It was concluded that the technique assessment tool captured some important characteristics of 20-m sprint performance and could potentially be used to profile or monitor athletes. Further the two-bound test is a more relevant test for developing athletes because of its specificity to sprinting, compared to the CMJ.
Legitimizing amateur status using financial reports: Victorian Football League clubs, 1909-1912
- Halabi, Abdel, Lightbody, Margaret, Frost, Lionel, Carter, Amanda
- Authors: Halabi, Abdel , Lightbody, Margaret , Frost, Lionel , Carter, Amanda
- Date: 2016
- Type: Text , Journal article
- Relation: Accounting History Vol. 21, no. 1 (2016), p. 25-47
- Full Text:
- Reviewed:
- Description: It is generally accepted by historians that in the early twentieth century clubs in Australian Football's Victorian Football League (VFL) made payments to "amateur" players prior to the legalization of professionalism and that such payments were not disclosed in club financial reports. Previously, financial reports have not been used to support or refute such claims. This article presents findings from a detailed examination of the financial reports and other records of six of the 10 VFL clubs for the years surrounding the legalization of professional football in 1911 (1909-1912). Prior to 1911, most clubs engaged in fraudulent financial reporting practices by misrepresenting player payments as other forms of permitted expenditures, thus concealing prohibited remunerative payments to players within their financial reports. Using isomorphic influences to explain the reasons for this misrepresentation, we conclude that the financial reports were used to legitimate the majority of clubs as amateur organizations. Competing isomorphic pressures, particularly conflicting coercive factors related to the VFL's prohibition on player payments and normative pressures associated with increasing professionalism amongst players, contributed to clubs engaging in fraudulent financial reporting. © The Author(s) 2015.
- Authors: Halabi, Abdel , Lightbody, Margaret , Frost, Lionel , Carter, Amanda
- Date: 2016
- Type: Text , Journal article
- Relation: Accounting History Vol. 21, no. 1 (2016), p. 25-47
- Full Text:
- Reviewed:
- Description: It is generally accepted by historians that in the early twentieth century clubs in Australian Football's Victorian Football League (VFL) made payments to "amateur" players prior to the legalization of professionalism and that such payments were not disclosed in club financial reports. Previously, financial reports have not been used to support or refute such claims. This article presents findings from a detailed examination of the financial reports and other records of six of the 10 VFL clubs for the years surrounding the legalization of professional football in 1911 (1909-1912). Prior to 1911, most clubs engaged in fraudulent financial reporting practices by misrepresenting player payments as other forms of permitted expenditures, thus concealing prohibited remunerative payments to players within their financial reports. Using isomorphic influences to explain the reasons for this misrepresentation, we conclude that the financial reports were used to legitimate the majority of clubs as amateur organizations. Competing isomorphic pressures, particularly conflicting coercive factors related to the VFL's prohibition on player payments and normative pressures associated with increasing professionalism amongst players, contributed to clubs engaging in fraudulent financial reporting. © The Author(s) 2015.
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