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Institution

Australian Catholic University

EducationBrisbane, Queensland, Australia
About: Australian Catholic University is a education organization based out in Brisbane, Queensland, Australia. It is known for research contribution in the topics: Population & Poison control. The organization has 2721 authors who have published 10013 publications receiving 215248 citations. The organization is also known as: ACU & ACU National.


Papers
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Journal ArticleDOI
TL;DR: It is demonstrated that large spikes in workload are associated with an increased injury risk using both models, although the EWMA model is more sensitive to detect increases in injury risk with higher ACWR.
Abstract: Objective To determine if any differences exist between the rolling averages and exponentially weighted moving averages (EWMA) models of acute:chronic workload ratio (ACWR) calculation and subsequent injury risk. Methods A cohort of 59 elite Australian football players from 1 club participated in this 2-year study. Global positioning system (GPS) technology was used to quantify external workloads of players, and non-contact ‘time-loss’ injuries were recorded. The ACWR were calculated for a range of variables using 2 models: (1) rolling averages, and (2) EWMA. Logistic regression models were used to assess both the likelihood of sustaining an injury and the difference in injury likelihood between models. Results There were significant differences in the ACWR values between models for moderate (ACWR 1.0–1.49; p=0.021), high (ACWR 1.50–1.99; p=0.012) and very high (ACWR >2.0; p=0.001) ACWR ranges. Although both models demonstrated significant (p 2.0) and an increase in injury risk for total distance ((relative risk, RR)=6.52–21.28) and high-speed distance (RR=5.87–13.43), the EWMA model was more sensitive for detecting this increased risk. The variance (R2) in injury explained by each ACWR model was significantly (p<0.05) greater using the EWMA model. Conclusions These findings demonstrate that large spikes in workload are associated with an increased injury risk using both models, although the EWMA model is more sensitive to detect increases in injury risk with higher ACWR.

132 citations

Journal ArticleDOI
24 Aug 2017
TL;DR: Despite these available treatments, heart failure remains incurable, and patients have a poor prognosis and high mortality rate, so the development of new therapies is imperative and requires further research.
Abstract: Heart failure is a global public health problem that affects more than 26 million people worldwide. The global burden of heart failure is growing and is expected to increase substantially with the ageing of the population. Heart failure with reduced ejection fraction accounts for approximately 50% of all cases of heart failure in the United States and is associated with substantial morbidity and reduced quality of life. Several diseases, such as myocardial infarction, certain infectious diseases and endocrine disorders, can initiate a primary pathophysiological process that can lead to reduced ventricular function and to heart failure. Initially, ventricular impairment is compensated for by the activation of the sympathetic nervous system and the renin–angiotensin–aldosterone system, but chronic activation of these pathways leads to worsening cardiac function. The symptoms of heart failure can be associated with other conditions and include dyspnoea, fatigue, limitations in exercise tolerance and fluid accumulation, which can make diagnosis difficult. Management strategies include the use of pharmacological therapies and implantable devices to regulate cardiac function. Despite these available treatments, heart failure remains incurable, and patients have a poor prognosis and high mortality rate. Consequently, the development of new therapies is imperative and requires further research. Heart failure can be broadly divided into two categories: heart failure with preserved ejection fraction and heart failure with reduced ejection fraction (HFrEF). HFrEF accounts for approximately 50% of all cases of heart failure in the United States and is the focus of this Primer by Butler and colleagues.

132 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated the financial cost of missing games due to injury in the Australian Football League (AFL) over the past 21 regular seasons and found that the average yearly financial cost for a single HSI increased by 56% from $A25'603 in 2003 to $A40'021 in 2012.
Abstract: Background Hamstring strain injuries (HSIs) have remained the most prevalent injury in the Australian Football League (AFL) over the past 21 regular seasons. The effect of HSIs in sports is often expressed as regular season games missed due to injury. However, the financial cost of athletes missing games due to injury has not been investigated. The aim of this report is to estimate the financial cost of games missed due to HSIs in the AFL. Method Data were collected using publicly available information from the AFL9s injury report and the official AFL annual report for the past 10 competitive AFL seasons. Average athlete salary and injury epidemiology data were used to determine the average yearly financial cost of HSIs for AFL clubs and the average financial cost of a single HSI over this time period. Results Across the observed period, average yearly financial cost of HSIs per club increased by 71% compared with a 43% increase in average yearly athlete salary. Over the same time period the average financial cost of a single HSI increased by 56% from $A25 603 in 2003 to $A40 021 in 2012, despite little change in the HSI rates during the period. Conclusions The observed increased financial cost of HSIs was ultimately explained by the failure of teams to decrease HSI rates, but coupled with increases in athlete salaries over the past 10 season. The information presented in this report highlights the financial cost of HSIs and other sporting injuries, raising greater awareness and the need for further funding for research into injury prevention strategies to maximise economical return for investment in athletes.

131 citations

Journal ArticleDOI
21 Apr 2014-Emotion
TL;DR: The findings provide insight into the association between experiential avoidance on social anxiety in laboratory and naturalistic settings, and demonstrate that the effect of EA depends upon level of social threat and opportunity.
Abstract: Experiential avoidance (EA), the tendency to avoid internal, unwanted thoughts and feelings, is hypothesized to be a risk factor for social anxiety. Existing studies of experiential avoidance rely on trait measures with minimal contextual consideration. In two studies, we examined the association between experiential avoidance and anxiety within real-world social interactions. In the first study, we examined the effect of experiential avoidance on social anxiety in everyday life. For 2 weeks, 37 participants with Social Anxiety Disorder (SAD) and 38 healthy controls provided reports of experiential avoidance and social anxiety symptoms during face-to-face social interactions. Results showed that momentary experiential avoidance was positively related to anxiety symptoms during social interactions and this effect was stronger among people with SAD. People low in EA showed greater sensitivity to the level of situational threat than high EA people. In the second study, we facilitated an initial encounter between strangers. Unlike Study 1, we experimentally created a social situation where there was either an opportunity for intimacy (self-disclosure conversation) or no such opportunity (small-talk conversation). Results showed that greater experiential avoidance during the self-disclosure conversation temporally preceded increases in social anxiety for the remainder of the interaction; no such effect was found in the small-talk conversation. Our findings provide insight into the association between experiential avoidance on social anxiety in laboratory and naturalistic settings, and demonstrate that the effect of EA depends upon level of social threat and opportunity.

131 citations

01 Apr 2011
TL;DR: Increased visual impairment was significantly associated with an increased incidence of falls and other injuries among older adults with AMD, and reduced contrast sensitivity was the only significant predictor of non-fall-related injuries.
Abstract: Purpose: Age-related macular degeneration (AMD) is the leading cause of irreversible visual impairment among older adults This study explored the relationship between AMD, falls risk and other injuries and identified visual risk factors for these adverse events Methods: Participants included 76 community-dwelling individuals with a range of severity of AMD (mean age, 770±69 years) Baseline assessment included binocular visual acuity, contrast sensitivity and merged visual fields Participants completed monthly falls and injury diaries for one year following the baseline assessment Results: Overall, 74% of participants reported having either a fall, injurious fall or other injury Fifty-four percent of participants reported a fall and 30% reported more than one fall; of the 102 falls reported, 63% resulted in an injury Most occurred outdoors (52%), between late morning and late afternoon (61%) and when navigating on level ground (62%) The most common non-fall injuries were lacerations (36%) and collisions with an object (35%) Reduced contrast sensitivity and visual acuity were associated with increased fall rate, after controlling for age, gender, cognitive function, cataract severity and self-reported physical function Reduced contrast sensitivity was the only significant predictor of falls and other injuries Conclusion: Among older adults with AMD, increased visual impairment was significantly associated with an increased incidence of falls and other injuries Reduced contrast sensitivity was significantly associated with increased rates of falls, injurious falls and injuries, while reduced visual acuity was only associated with increased falls risk These findings have important implications for the assessment of visually impaired older adults

131 citations


Authors

Showing all 2824 results

NameH-indexPapersCitations
John J.V. McMurray1781389184502
James F. Sallis169825144836
Richard M. Ryan164405244550
Herbert W. Marsh15264689512
Jacquelynne S. Eccles13637884036
John A. Kanis13362596992
Edward L. Deci130284206930
Thomas J. Ryan11667567462
Bruce E. Kemp11042345441
Mark J. Nieuwenhuijsen10764749080
Peter Rosenbaum10344645732
Barbara Riegel10150777674
Ego Seeman10152946392
Paul J. Frick10030633579
Robert J. Vallerand9830141840
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202386
2022163
2021984
2020888
2019902
2018903