Jump-landing mechanics in patellar tendinopathy in elite youth basketballers
- Authors: Harris, Meaghan , Schultz, Adrian , Drew, Michael , Rio, Ebonie , Charlton, Paula , Edwards, Suzi
- Date: 2020
- Type: Text , Journal article
- Relation: Scandinavian Journal of Medicine & Science in Sports Vol. 30, no. 3 (Mar 2020), p. 540-548
- Full Text: false
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- Description: Patellar tendinopathy (PT) is a leading cause of morbidity in jump-landing athletes. Landing mechanics are identified as a factor associated with PT and/or patellar tendon abnormality. This study aimed to identify key jump-landing variables associated with PT. Thirty-six junior elite basketball players (men n = 18, women n = 18) were recruited from a Basketball Australia development camp. Three-dimensional (3D) kinematic and ground reaction force (GRF) data during a stop-jump task were collected as well as ultrasound scans of the patellar tendons and recall history of training load data. Mixed-model factorial analyses of variance were used to determine any significant between-group differences. Of the 23 participants included for statistical analyses, 11 had normal bilateral patellar tendons (controls) and eight reported PT (currently symptomatic); however, the four participants categorized as asymptomatic with patellar tendon abnormality on diagnostic imaging were excluded from statistical analyses due to their small sample size. Athletes with PT displayed a similar knee flexion angle at initial foot-ground contact (IC) and hip extension strategy during a stop-jump horizontal landing. Despite a similar kinematic technique, athletes with PT utilized a strategy of a longer stance duration phase from IC to peak force. This strategy did not lead to those athletes with PT decreasing their peak vertical GRF nor patellar tendon force during landing but enabled these athletes to land with a lower rate of loading (control 59.2 +/- 39.3 vs. PT 29.4 +/- 33.7 BW.s-1). Athletes with PT still reported significantly reduced training volume (control 4.9 +/- 1.8 vs PT 1.8 +/- 1.1 sessions/wk; total training time/wk control 2.4 +/- 1.0 vs PT 1.4 +/- 1.1 h/wk).
Medical-attention injuries in community cricket : a systematic review
- Authors: McLeod, Geordie , O'Connor, Siobhan , Morgan, Damian , Kountouris, Alex , Finch, Caroline , Fortington, Lauren
- Date: 2020
- Type: Text , Journal article , Review
- Relation: BMJ Open Sport and Exercise Medicine Vol. 6, no. 1 (2020), p.
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- Description: Objectives The aim was to identify and describe outcomes from original published studies that present the number, nature, mechanism and severity of medically treated injuries sustained in community-level cricket. Design Systematic review. Methods Nine databases were systematically searched to December 2019 using terms "cricket
A 2-year prospective study of injury epidemiology in elite Australian rugby sevens : Exploration of incidence rates, severity, injury type, and subsequent injury in men and women
- Authors: Toohey, Liam , Drew, Michael , Finch, Caroline , Cook, Jill , Fortington, Lauren
- Date: 2019
- Type: Text , Journal article
- Relation: American Journal of Sports Medicine Vol. 47, no. 6 (2019), p. 1302-1311
- Full Text: false
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- Description: Background: Injuries are common in rugby sevens, but studies to date have been limited to short, noncontinuous periods and reporting of match injuries only. Purpose: To report the injury incidence rate (IIR), severity, and burden of injuries sustained by men and women in the Australian rugby sevens program and to provide the first longitudinal investigation of subsequent injury occurrence in rugby sevens looking beyond tournament injuries only. Study Design: Descriptive epidemiology study. Methods: Ninety international rugby sevens players (55 men and 35 women) were prospectively followed over 2 consecutive seasons (2015-2016 and 2016-2017). All medical attention injuries were reported irrespective of time loss. Individual exposure in terms of minutes, distance, and high-speed distance was captured for each player for matches and on-field training, with the use of global positioning system devices. The IIR and injury burden (IIR × days lost to injury) were calculated per 1000 player-hours, and descriptive analyses were performed. Results: Seventy-three players (81.1%) sustained 365 injuries at an IIR of 43.2 per 1000 player-hours (95% CI, 43.0-43.3). As compared with male players, female players experienced a lower IIR (incidence rate ratio, 0.91; 95% CI, 0.90-0.91). Female players also sustained a higher proportion of injuries to the trunk region (relative risk, 1.75; 95% CI, 1.28-2.40) but a lower number to the head/neck region (relative risk, 0.58; 95% CI, 0.37-0.93; P =.011). The majority (80.7%) of subsequent injuries were of a different site and nature than previous injuries. A trend toward a reduced number of days, participation time, distance, and high-speed distance completed before the next injury was observed after successive injury occurrence. Conclusion: Female players have a lower IIR than male players, with variation of injury profiles observed between sexes. With a surveillance period of 2 years, subsequent injuries account for the majority of injuries sustained in rugby sevens, and they are typically different from previous types of sustained injuries. After each successive injury, the risk profile for future injury occurrence appears to be altered, which warrants further investigation to inform injury prevention strategies in rugby sevens.
Epidemiology of hospital-treated cricket injuries sustained by women from 2002-2003 to 2013-2014 in Victoria, Australia
- Authors: Perera, Nirmala , Kemp, Joanne , Joseph, Corey , Finch, Caroline
- Date: 2019
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 22, no. 11 (Nov 2019), p. 1213-1218
- Full Text: false
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- Description: Objectives: To present the first comprehensive epidemiological profile of hospital-treated injuries sustained by female cricketers from 2002-2003 to 2013-2014 in Victoria, Australia. Design: Analysis of routinely collected hospital data (detailed case-series). Methods: A retrospective analysis of hospital-treatment data associated with cricket injuries sustained by women between 1 July 2002 and 30 June 2014, inclusive were extracted from databases held by the Victorian Injury Surveillance Unit in Australia. Results: Over the 12-year period, 668 cases were treated in Victoria. Of these, 547 were emergency department (ED)-presentations. There were 121 hospital-admissions, of which, the length of stay was <2 days for 78.5% cases. All cases were treated and released, and no fatalities were reported. The 10-14 year age group most frequently presented to ED (19.9%) and were most commonly admitted to hospital (16.5% of the total admissions). Fractures were the most common cause of hospital-admissions (47.1%) but only accounted for 17.2% of the ED-presentations. Dislocations, sprains and strains, were the most common (36.4%) cause of ED-presentations. The head was the most commonly injured anatomical location (27.8% of ED-presentations and 28.1% of hospital-admissions), followed by the wrist and hand (27.8% ED-presentations and 17.4% hospital-admissions). Conclusions: These findings provide the first overview of the nature of injuries requiring hospital attendance in female cricketers, and a foundation to inform the development of targeted injury prevention programs for female cricketers. (C) 2019 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
Match injuries in Sri Lankan junior cricket : A prospective, longitudinal study
- Authors: Gamage, Prasanna , Fortington, Lauren , Kountouris, Alex , Finch, Caroline
- Date: 2019
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 22, no. 6 (2019), p. 647-652
- Full Text: false
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- Description: Objectives: Understanding the nature of injuries in cricket is key to mitigate injury risks and prioritise preventive measures. This study aimed to identify the incidence and nature of match injuries among Sri Lankan junior cricketers. Design: Longitudinal follow-up study with prospective in-season data collection. Methods: A national survey of schoolboy, division-1 cricket teams in under-15 and under-17 age groups. Using a paper-based questionnaire, distributed to school-teams at the start of the 2016 cricket season, respondents recorded any injuries, including the site, type and mechanism. Match injury incidence rates (match-IIR) (injuries/100 match-player-days) were calculated overall, by position and for match time loss (MTL) and non-MTL injuries. Results: From 59 school-teams, 573 players responded, with 404 players reporting 744 injuries in 648 matches. The match-IIR was 28.0 injuries/100 match-player-days (95% CI = 26.0–30.2). The highest match-IIR was reported among fielders (46.0% of all injuries sustained; match-IIR = 12.9) compared with batters (25.4%; match-IIR = 7.1) and bowlers (20.3%; match-IIR = 5.7). Abrasions and bruises to the knee or elbow were the most common injuries among fielders, with the majority being non-MTL injuries. Conclusions: Almost half (46.0%) of all injuries were to fielders, and more research into their severity and mechanisms is needed to identify the need for, and design of, preventive measures. Batters sustained a relatively large number of facial-organ injuries from being struck by the ball, presenting a need to evaluate the use and appropriateness of helmets by Sri Lankan junior cricketers. Similar to other junior cricket studies, the most common injuries among bowlers were strains and sprains, mainly affecting the lower limbs and lower back. © 2018
A prospective cohort study on symptoms of common mental disorders among Dutch elite athletes
- Authors: Gouttebarge, Vincent , Jonkers, Ruud , Moen, Maarten , Verhagen, Evert , Wylleman, Paul , Kerkhoffs, Gino
- Date: 2017
- Type: Text , Journal article
- Relation: Physician and Sportsmedicine Vol. 45, no. 4 (2017), p. 426-432
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- Description: Objective: Scientific knowledge about symptoms of common mental disorders in elite sports is scarce. Consequently, the objectives of the study were to (i) establish the 12-month incidence of symptoms of common mental disorders (CMD; distress, anxiety/depression, sleep disturbance, adverse alcohol use, eating disorders) among Dutch elite athletes and (ii) explore their potential association with several stressors (being injured, recent life events, career dissatisfaction).Methods: A prospective cohort study with a 12-month follow-up period was conducted. The study used validated questionnaires to assess symptoms of common mental disorders (thus not clinically diagnosed) as well as several stressors; an electronic questionnaire was set up and repeatedly distributed.Results: A total of 203 elite athletes gave their written informed consent to participate in the study, from which 143 completed the 12-month follow-up period (follow-up rate of 70%). Incidence of symptoms of CMD ranged from 6% for adverse alcohol use to 57% for symptoms of anxiety/depression. Over the follow-up period, around 17% of the participants reported two simultaneous symptoms of CMD, and around 19% reported three simultaneous symptoms of CMD. Inferences between some stressors and symptoms of CMD were found but none of the associations were statistically significant.Conclusions: Substantial 12-month incidence rates of symptoms of CMD (self-reported and not clinically diagnosed) were found among Dutch elite athletes (especially for anxiety/depression), appearing similar to the ones found among athletes from other sports disciplines and the Dutch general population. Also, inferences between some stressors and symptoms of CMD were found but none of the associations were statistically significant. Supportive and preventive measures directed towards symptoms of CMD should be developed to improve awareness and psychological resilience of athletes, which would likely improve their performance and quality-of-life.
Interventions preventing ankle sprains; previous injury and high-risk sport participation as predictors of compliance
- Authors: Janssen, Kasper , Van Der Zwaard, Babette , Finch, Caroline , van Mechelen, Willem , Verhagen, Evert
- Date: 2016
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 19, no. 6 (Jun 2016), p. 465-469
- Full Text: false
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- Description: Objectives: To describe the association between participants' person-related potential predictor variables and cumulative compliance with interventions for preventing ankle sprains: neuromuscular training, wearing an ankle brace, and a combined training and bracing. Design: Secondary analysis of compliance data from a randomized controlled trial (RCT) comparing measures preventing ankle ligament injuries. Methods: Ordinal regression with a backward selection method was used to obtain a descriptive statistical model linking participants' person-related potential predictor variables with the monthly cumulative compliance measurements for three interventions preventing ankle ligament injuries. Results: Having had a previous ankle injury was significantly associated with a higher compliance with all of the preventive measures trialed. Overall compliance with bracing and the combined intervention was significantly lower than the compliance with NM training. Per group analysis found that participating in a high-risk sport, like soccer, basketball, and volleyball, was significantly associated with a higher compliance with bracing, or a combined bracing and NM training. In contrast, participating in a high-risk sport was significantly associated with a lower per group compliance with NM training. Conclusions: Future studies should include at least registration of previous ankle sprains, sport participation (high- or low-risk), experience in NM training, and hours of sport exposure as possible predictors of compliance with interventions preventing ankle sprains. Practitioners should take into account these variables when prescribing preventive neuromuscular training or bracing. (C) 2015 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
Improving the diffusion of safety initiatives in community sport
- Authors: Poulos, Roslyn , Donaldson, Alex
- Date: 2015
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 18, no. 2 (2015), p. 139-144
- Full Text: false
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- Description: Objectives: The "Mayday Safety Procedure" (MSP) is included in the Australian Rugby Union (ARU) Medical and Safety Recommendations and the mandatory SmartRugby training for coaches. Previous research indicates that translating the Mayday Safety Procedure into practice among community rugby coaches is challenging. This study investigated whether Mayday Safety Procedure translation could be enhanced by systematically planning and implementing a range of theory-informed and context-specific diffusion strategies. Design: A controlled before-and-after study. Methods: Coaches of senior community rugby teams in five zones in New South Wales (Australia) were invited to complete a questionnaire about their Mayday Safety Procedure knowledge and practice at the end of the 2010 and 2011 rugby seasons. During 2011, coaches in the intervention zone were exposed to a range of strategies to promote Mayday Safety Procedure diffusion which were planned by following Step 5 of the Intervention Mapping protocol. Coaches in the other four zones were exposed to usual strategies to promote Mayday Safety Procedure diffusion. Results: Using the RE-AIM evaluation framework, statistically significant improvements were found among intervention zone coaches in: knowledge of most Mayday Safety Procedure key criteria; the number of coaches recognising their zone policy requiring them to train players in the Mayday Safety Procedure; frequency of provision of Mayday Safety Procedure training to players; coach perceptions of the quality of Mayday Safety Procedure training for players; and in confidence that referees could implement the Mayday Safety Procedure during a game if required. Conclusions: The findings suggest that the translation of injury prevention policy into community practice can be enhanced by developing and implementing a theory-informed, context-specific diffusion plan, undertaken in partnership with key stakeholders. © 2014 Sports Medicine Australia.
Injuries in community-level Australian football : Results from a club-based injury surveillance system
- Authors: Ekegren, Christina , Gabbe, Belinda , Donaldson, Alex , Cook, Jill , Lloyd, David , Finch, Caroline
- Date: 2014
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 18, no. 6 (2014), p.651-655
- Relation: http://purl.org/au-research/grants/nhmrc/565900
- Relation: http://purl.org/au-research/grants/nhmrc/1058737
- Relation: http://purl.org/au-research/grants/nhmrc/565907
- Full Text: false
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- Description: Objectives: Far fewer injury surveillance systems exist within community sport than elite sport. As a result, most epidemiological data on sports injuries have limited relevance to community-level sporting populations. There is potential for data from community club-based injury surveillance systems to provide a better understanding of community sports injuries. This study aimed to describe the incidence and profile of community-level Australian football injuries reported using a club-based injury surveillance system. Design: Prospective, epidemiological study. Methods: Sports trainers from five community-level Australian football leagues recorded injury data during two football seasons using the club-based system. An online surveillance tool developed by Sports Medicine Australia ('Sports Injury Tracker') was used for data collection. The injury incidence, profile and match injury rate were reported. Results: Injury data for 1205 players were recorded in season one and for 823 players in season two. There was significant variability in injury incidence across clubs. However, aggregated data were consistent across football seasons, with an average of 0.7 injuries per player per season and 38-39 match injuries per 1000. h match exposure. A large proportion of injuries occurred during matches, involved the lower limb and resulted from contact. Conclusions: Data from the club-based system provided a profile of injuries consistent with previous studies in community-level Australian football. Moreover, injury incidence was consistent with other studies using similar personnel to record data. However, injury incidence was lower than that reported in studies using player self-report or healthcare professionals and may be an underestimate of true values.
Seven Steps for Developing and Implementing a Preventive Training Program: Lessons Learned from JUMP-ACL and Beyond
- Authors: Padua, Darin , Frank, Barnett , Donaldson, Alex , de la Motte, Sarah , Cameron, Kenneth , Beutler, Anthony , DiStefano, Lindsay , Marshall, Stephen
- Date: 2014
- Type: Text , Journal article
- Relation: Clinics in Sports Medicine Vol. 33, no. 4 (2014), p. 615-632
- Full Text: false
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- Description: Musculoskeletal injuries during military and sport-related training are common, costly, and potentially debilitating. There is a need to develop and implement evidence-based injury prevention strategies to reduce the burden of musculoskeletal injury. The lack of attention to implementation issues is a major factor limiting the ability to successfully reduce musculoskeletal injury rates using evidence-based injury prevention programs. This article proposes 7 steps that can be used to facilitate successful design and implementation of evidence-based injury prevention programs within the logical constraints of a real-world setting by identifying implementation barriers and associated solutions.
Does sports club participation contribute to health-related quality of life?
- Authors: Eime, Rochelle , Harvey, Jack , Brown, Wendy , Payne, Warren
- Date: 2010
- Type: Text , Journal article
- Relation: Medicine and Science in Sports and Exercise Vol. 42, no. 5 (2010), p. 1022-1028
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- Description: Does Sports Club Participation Contribute to Health-Related Quality of Life? Med. Sci. Sports Exerc., Vol. 42, No. 5, pp. 1022-1028, 2010. Given the social nature of participation in sport, we hypothesized that club sports participants would have greater well-being and quality of life than participants in other forms of physical activity (PA). Purpose: The purpose of this study was to examine health-related quality of life and life satisfaction in women who participate in three contrasting forms of PA: club sport, gym activities, and walking. Methods: This was a cross-sectional study of the relationship between type of PA setting and measures of health-related quality of life (Short-Form Health Survey [SF-36]) and life satisfaction in 818 women living in rural Victoria, Australia, in 2007. Data were also compared with those from a normative sample of 2345 women. Results: After adjustment for potential confounders (age,! education, marital status, children aged <16 yr, perceived financial stress, and level of recreational PA), four of the eight SF-36 subscales, the SF-36 mental health component summary score, and life satisfaction were significantly higher in the club sport group than that in the other groups. Conclusion: Although cross-sectional research cannot establish causal links, the results suggest that participation in club sport may enhance the health benefits of PA.
- Description: 2003008119
Making sporting clubs healthy and welcoming environments : A strategy to increase participation
- Authors: Eime, Rochelle , Payne, Warren , Harvey, Jack
- Date: 2008
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 11, no. 2 (2008), p. 146-154
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- Description: Sporting clubs are an ideal setting to promote community-wide participation in physical activity. Using the principles of the Ottawa Charter as a guide, this study explored the factors affecting the development of supportive environments as a mechanism to increase participation in club sport. The Victorian Health Promotion Foundation (VicHealth) funds State Sporting Associations (SSAs) to develop healthy and welcoming environments (HWE) in their associated clubs. The program focus areas are: welcoming and inclusive environments, sports injury prevention, 'smoke-free' environments, responsible serving of alcohol, sun protection and healthy eating. This paper sought to determine whether or not SSA Executive Officers (EOs) believe that the creation of a supportive environment will facilitate sporting club membership and to identify the factors that affect the development of the HWEs. Forty-two (82.4%) of the 51 funded SSAs completed a general survey and 36 (70.6%) of EOs responded to questions that were specifically addressed to them. EOs from six SSAs also participated in semi-structured interviews. SSA EOs (97.2%) believed that the creation of HWE in clubs would facilitate increases in participant membership. However, the data indicate incomplete development of the HWE focus areas at the club level because of limited club capacity and limited SSA support. Reportedly, the SSAs are at the stage of raising program awareness at the club level. It is suggested that SSAs should plan a structured approach to the development of HWEs that acknowledges the diverse capacity of their clubs, and garner the support of key club volunteers in order to establish HWEs. Crown Copyright © 2007.
- Description: C1
Providing sporting experiences for children in Out of School Hours Care (OSHC) environments : Sport and physical activity participation and intentions
- Authors: Spittle, Michael , O'Meara, James , Garnham, Jennie , Kerr, Megan
- Date: 2008
- Type: Text , Journal article
- Relation: Journal of Science and Medicine in Sport Vol. 11, no. 3 (2008), p. 316-322
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- Description: The Out of School Hours Sports Program (OSHSP) aimed to provide structured sporting experiences and community links to local clubs for children in Out of School Hours Care (OSHC). The OSHSP involved 17 State Sporting Associations (SSAs), 71 OSHC Services and local club representatives. This study explored children's participation in sport in and outside the OSHSP and parental intention for participation in sport in and outside the OSHSP. Surveys were received from 211 children (76 girls and 125 boys; mean age = 7.9 years, S.D. = 1.7) and their parents/guardians (37.9% response rate). OSHC is characterised by freedom of choice of participation in activities by children. The OSHSP was used to provide an opportunity to choose to participate in a sport while attending OSHC. At the OSHC Services surveyed, between 7.1 and 100% of the children attending OSHC chose to participate in the OSHSP. Of those children who chose to participate, 85% were participating in a sport, usually a different sport to the one offered in the OSHSP. This participation was largely club-based (49.8%), most often once a week for training and competition (55.2%). Parental intentions for children's participation in the OSHSP sports varied with respect to the number of years attending the OSHSP, where children played and trained in their main sport, and how many times a week a child played and trained in their main sport. Older children tended to play and train for sport more times per week and had been attending the OSHC for more years than younger children. © 2007 Sports Medicine Australia.
- Description: C1
A deterministic model of the vertical jump : Implications for training
- Authors: Ham, Daniel , Knez, Wade , Young, Warren
- Date: 2007
- Type: Text , Journal article
- Relation: Journal of Strength and Conditioning Research Vol. 21, no. 3 (2007), p. 967-972
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- Description: A deterministic model of the vertical jump: implications for training. J. Strength Cond. Res. 21(3):967-972. 2007. - Increasing vertical jump height is a critical component for performance enhancement in many sports. It takes on a number of different forms and conditions, including double and single legged jumps and stationary and run-up jumps. In an attempt to understand the factors that influence vertical jump performance, an extensive analysis was undertaken using the deterministic model. Once identified, practical training strategies enabling improvement in these factors were elucidated. Our analysis showed that a successful vertical jump performance was the result of a complex interplay of run-up speed, reactive strength, concentric action power of the take-off leg(s), hip flexors, shoulders, body position, body mass, and take-off time. Of special interest, our analysis showed that the concentric action power of the legs was the critical factor affecting stationary double leg vertical jumps, whereas reactive strength was the critical component for a single leg jump from a run-up. © 2007 National Strength & Conditioning Association.
- Description: C1
- Description: 2003005651
Internal and external imagery perspective measurement and use in imagining open and closed sports skills : An exploratory study
- Authors: Spittle, Michael , Morris, Tony
- Date: 2007
- Type: Text , Journal article
- Relation: Perceptual and Motor Skills Vol. 104, no. 2 (2007), p. 387-404
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- Description: This study explored the measurement and use of internal and external imagery perspectives during imagery of open and closed sports skills. Participants (N = 41; male = 23; female = 18), ages 14 to 28 (M = 19.4 yr.; SD = 3.1), who were recruited from undergraduate classes in human movement and physical education, and local sporting teams, completed the Imagery Use Questionnaire and then imagined performing eight common sports skills, four open skills and four closed skills, in a random order. Participants provided concurrent verbalisation during their imagery. Immediately after imagining each skill, participants completed a rating scale and retrospective verbalisation of imagery perspective use. Analysis indicated that the questionnaire gave a general imagery perspective preference but was not a strong predictor of imagery used on specific occasions. The three measures of imagery perspective were equivalent in imagining performing particular skills. Participants experienced more internal imagery than external imagery while imagining the eight sports skills, but there was no significant difference between perspective use on the open and closed skills. © Perceptual and Motor Skills 2007.
- Description: C1
- Description: 2003005636