A new way of categorising recurrent, repeat and multiple sports injuries for injury incidence studies - the subsequent injury categorisation (SIC) model
- Authors: Finch, Caroline , Cook, Jill , Gabbe, Belinda , Orchard, John
- Date: 2015
- Type: Text , Journal article
- Relation: Australasian Epidemiologist Vol. 22, no. 1 (2015), p. 22-25
- Relation: http://purl.org/au-research/grants/nhmrc/1058737
- Full Text: false
- Reviewed:
- Description: Injuries are a major contributor to healthcare costs and individuals' health and disability status. In response to the overall public health burden, injuries were one of the first medical conditions identified as an Australian National Health Priority Area. Our previous epidemiological research has shown that sports injuries, especially those sustained through formal and highly competitive sport, are often associated with considerable pain and dysfunction. They have significant ongoing impact on quality of life and need for medical treatment, including in the hospital setting.They are also a major barrier towards both the uptake and continuance of health-generating physical activity guidance.
Do hard playing fields increase the risk of injury in community level Australian football?
- 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 condition as a risk factor in sports injury aetiology studies : the level of concordance between objective and subjective measures
- Authors: Twomey, Dara , Petrass, Lauren , Orchard, John , Finch, Caroline
- Date: 2014
- Type: Text , Journal article
- Relation: Injury Epidemiology Vol. 1, no. 1 (2014), p.1-7
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Full Text: false
- Reviewed:
- Description:
BACKGROUND:It is well known that the condition and type of sporting ground influences the risk of sports injury. However, the lack of evidence on the relationship between subjective and objective sporting ground condition assessments in sports injury aetiology studies has implications for the development of effective injury prevention strategies. This paper aims to examine concordance between subjectively rated and objective ground hardness and moisture measurements to inform data collection methods for future sports injury aetiology studies. METHODS:Subjective, observational assessments of ground hardness and soil moisture were recorded on 36 occasions during an Australian football season using two four-point scales of 'very soft' to 'very hard' and 'very wet' to 'very dry', respectively. Independent, objectively measured hardness and soil moisture were also undertaken at nine locations on the same grounds. The maximum and minimum ground values and the computed average of ground hardness and soil moisture were analysed. Somer's d statistic was calculated to measure the level of concordance between the subjective and objective measures. RESULTS:A significant, moderate to substantial level of agreement was found between the subjective ratings and the average objective hardness values (d = 0.467, p <0.001), but there was perfect agreement on just less than half of the occasions. The level of concordance between the subjective and objective moisture ratings was low to moderate or trivial for all moisture measures (0.002
0.05). CONCLUSIONS:Compared to objective measures, the subjective assessments were more accurate for ground hardness than for soil moisture levels and raters were just as likely to underestimate or overestimate the condition under review. This has implications for future sports injury aetiology studies that include ground condition assessments and particularly the use of subjective measures to underpin the development of future injury prevention strategies.
International consensus statement on injury surveillance in cricket : A 2016 update
- Authors: Orchard, John , Ranson, Craig , Olivier, Benita , Dhillon, Mandeep , Gray, Janine , Langley, Ben , Mansingh, Akshai , Moore, Isabel , Murphy, Ian , Patricios, Jon , Alwar, Thiagarajan , Clark, Christopher , Harrop, Brett , Khan, Hussain , Kountouris, Alex , Macphail, Mairi , Mount, Stephen , Mupotaringa, Anesu , Newman, David , O'Reilly, Kieran , Peirce, Nicholas , Saleem, Sohail , Shackel, Dayle , Stretch, Richard , Finch, Caroline
- Date: 2016
- Type: Text , Journal article
- Relation: British Journal of Sports Medicine Vol. 50, no. 20 (2016), p. 1245-1251
- Full Text: false
- Reviewed:
- Description: Cricket was the first sport to publish recommended methods for injury surveillance in 2005. Since then, there have been changes to the nature of both cricket and injury surveillance. Researchers representing the major cricket playing nations met to propose changes to the previous recommendations, with an agreed voting block of 14. It was decided that 10 of 14 votes (70%) were required to add a new definition element and 11 of 14 (80%) were required to amend a previous definition. In addition to the previously agreed 'Match time-loss' injury, definitions of 'General time-loss', 'Medical presentation', 'Player-reported' and 'Imaging-abnormality' injuries are now provided. Further, new injury incidence units of match injuries per 1000 player days, and annual injuries per 100 players per year are recommended. There was a shift towards recommending a greater number of possible definitions, due to differing contexts and foci of cricket research (eg, professional vs amateur; injury surveillance systems vs specific injury category studies). It is recommended that researchers use and report as many of the definitions as possible to assist both comparisons between studies within cricket and with those from other sports.
Predictors of hamstring injury at the elite level of Australian football
- Authors: Gabbe, Belinda , Bennell, Kim , Finch, Caroline , Wajswelner, Henry , Orchard, John
- Date: 2006
- Type: Text , Journal article
- Relation: Scandinavian Journal of Medicine & Science in Sports Vol. 16, no. 1 (2006), p. 7-13
- Full Text: false
- Reviewed:
- Description: Hamstring injuries are the most common injury sustained by elite Australian football players and result in substantial costs because of missed training time, unavailability for matches and lost player payments. Evidence to support proposed risk factors for hamstring injury is generally lacking, limiting the development of appropriate prevention strategies. To identify intrinsic risk factors for hamstring injury at the elite level of Australian football. A prospective cohort of 222 players underwent baseline measurement in the form of a self-report questionnaire and a musculo-skeletal screen during the pre-season period of the 2002 Australian football season. Injury surveillance and exposure data were collected for the full season. Logistic regression analyses were used to identify independent predictors of hamstring injury in this group of players. Thirty-one players sustained a hamstring injury. A past history (previous 12 months) of hamstring injury and increasing age were found to be independent predictors of hamstring injury. Older players and those with a previous history of hamstring injury are target groups for further research and implementation of injury prevention strategies. Restricted ankle dorsiflexion range of movement warrants consideration in the development of prevention programs for hamstring injury.
- Description: 2003004976
Subsequent injuries are more common than injury recurrences : An analysis of 1 season of prospectively collected injuries in professional Australian football
- Authors: Finch, Caroline , Cook, Jill , Kunstler, Breanne , Akram, Muhammad , Orchard, John
- Date: 2017
- Type: Text , Journal article
- Relation: The American Journal of Sports Medicine Vol. 45, no. 8 (2017), p. 1921-1927
- Full Text: false
- Reviewed:
- Description: BACKGROUND: It is known that some people can, and do, sustain >1 injury over a playing season. However, there is currently little high-quality epidemiological evidence about the risk of, and relationships between, multiple and subsequent injuries. PURPOSE: To describe the subsequent injuries sustained by Australian Football League (AFL) players over 1 season, including their most common injury diagnoses. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Within-player linked injury data on all date-ordered match-loss injuries sustained by AFL players during 1 full season were obtained. The total number of injuries per player was determined, and in those with >1 injury, the Subsequent Injury Classification (SIC) model was used to code all subsequent injuries based on their Orchard Sports Injury Classification System (OSICS) codes and the dates of injury. RESULTS: There were 860 newly recorded injuries in 543 players; 247 players (45.5%) sustained >/=1 subsequent injuries after an earlier injury, with 317 subsequent injuries (36.9% of all injuries) recorded overall. A subsequent injury generally occurred to a different body region and was therefore superficially unrelated to an index injury. However, 32.2% of all subsequent injuries were related to a previous injury in the same season. Hamstring injuries were the most common subsequent injury. The mean time between injuries decreased with an increasing number of subsequent injuries. CONCLUSION: When relationships between injuries are taken into account, there is a high level of subsequent (and multiple) injuries leading to missed games in an elite athlete group.
The prevalence of Achilles and patellar tendon injuries in Australian football players beyond a time-loss definition
- Authors: Docking, Sean , Rio, Ebonie , Cook, Jill , Orchard, John , Fortington, Lauren
- Date: 2018
- Type: Text , Journal article
- Relation: Scandinavian Journal of Medicine and Science in Sports Vol. 28, no. 9 (2018), p. 2016-2022
- Full Text: false
- Reviewed:
- Description: Little is known about the prevalence and associated of morbidity of tendon problems. With only severe cases of tendon problems missing games, players that have their training and performance impacted are not captured by traditional injury surveillance. The aim of this study was to report the prevalence of Achilles and patellar tendon problems in elite male Australian football players using the Oslo Sports Trauma Research Centre (OSTRC) overuse questionnaire, compared to a time-loss definition. Male athletes from 12 professional Australian football teams were invited to complete a monthly questionnaire over a 9-month period in the 2016 pre- and competitive season. The OSTRC overuse injury questionnaire was used to measure the prevalence and severity of Achilles and patellar tendon symptoms and was compared to traditional match-loss statistics. A total of 441 participants were included. Of all participants, 21.5% (95% CI: 17.9-25.6) and 25.2% (95% CI 21.3-29.4) reported Achilles or patellar tendon problems during the season, respectively. Based on the traditional match-loss definition, a combined 4.1% of participants missed games due to either Achilles or patellar tendon injury. A greater average monthly prevalence was observed during the pre-season compared to the competitive season. Achilles and patellar tendon problems are prevalent in elite male Australian football players. These injuries are not adequately captured using a traditional match-loss definition. Prevention of these injuries may be best targeted during the off- and pre-season due to higher prevalence of symptoms during the pre-season compared to during the competitive season.
Use of rule changes to reduce injury in the Australian Football League
- Authors: Orchard, John , McCrory, Paul , Makdissi, Michael , Seward, Hugh , Finch, Caroline
- Date: 2014
- Type: Text , Journal article
- Relation: Orotpedica e Traumatologica Vol. 65, no. 6 (December 2014), p. 355-364
- Relation: http://purl.org/au-research/grants/nhmrc/1058737
- Full Text: false
- Reviewed:
- Description: AIM: Injuries are common in all professional football codes (including soccer, rugby league and union, American football, Gaelic Football and Australian football). The aim of the present study was to assess the potential effect that rule changes can have on injuries in professional football. METHODS: The Australian Football League (AFL) conducts an annual audit of injuries and makes regular rule changes on a semi-annual basis. An injury was defined as “any physical or medical condition that causes a player to miss a match in the regular season or finals” with ongoing records kept and publicly released over the decade 2004-2013. RESULTS: Over the ten years from 2004-2013, the AFL Commission made 26 rule changes, of which eight were considered to have potential impact on injury rates. The 2005 centre circle rule has significantly reduced rates of posterior cruciate ligament (PCL) injury in ruckmen. The rates of head and neck injuries dropped after initial rule changes, but rates of concussion and other head and neck injuries have increased since 2011, since a rule change that players could not re-enter the game after suffering concussion. Rates of hamstring and groin injuries have significantly fallen since the substitute rule was instituted in 2011, but rates of other lower limb injuries have risen over the same time period. CONCLUSION: Rule changes have, in some instances, had a beneficial effect on the rates of specific injuries over the last decade. However, the overall injury incidence in the AFL has not fallen, possibly because of a concurrent background increase in the speed of player movement across the decade. The AFL is in a fortunate position of being able to easily institute rule changes as it is the peak body of the sport which does not have to consider international competitions. The well established annual injury survey is able to monitor the effects of any rule changes on injury rates in a timely manner.