The incidence,prevalence, nature,severity and mechanisms of injury in elite female cricketers: A prospective cohort study

ObjectivesIncidence, prevalence, nature, severity and mechanisms of injury in elite female cricketers over two seasons from March 2014 to March 2016, inclusive.DesignProspective cohort study.MethodsInjury data collected via Cricket Australia’s Athlete Management System on all elite female players over two seasons were analysed. Profiles of the nature, anatomical location and mechanism of injuries were presented according to dominant player position. Injury incidence rates were calculated based on match playing hours.ResultsThere were 600 medical-attention injuries; with 77.7% players reporting ≥1 injury. There were 79.5% acute injuries compared to gradual onset injuries. Of the all medical-attention injuries, 20.2% led to time-loss; 34.7% were match-time-loss injuries. Match injury incidence was 424.7 injuries/10,000 h for all injuries and 79.3 injuries/10,000 h for time-loss injuries. Of all the injuries, 31.8% were muscle injuries and 16.0% joint sprains. Wrist and hand (19.8%), lumbar spine (16.5%) and knee (14.9%) injuries were the most common time-loss injuries. Six players sustained lumber spine bone stress injury that resulted in the most days missed due to injury (average 110.5 days/injury).ConclusionsThere is a need to focus on specific injuries in female cricket, including thigh, wrist/hand and knee injuries because of their frequency, and lumbar spine injuries because of their severity.     

Acute injuries in Finnish junior floorball league players

Objectives

To investigate the incidence and characteristics of acute time-loss injuries in Finnish junior floorball league players.

A prospective study of health problems at the 2018 17/U and 19/U Australian National Netball Championships with comparison of surveillance methodology

ObjectiveTo investigate the incidence, site, nature and cause of injuries sustained during and four weeks following the 2018 Australian National Netball Championships (ANNC’s) using medical attention and self-report surveillance tools.DesignProspective cohort study.MethodInjuries were recorded prospectively using medical attention and self-report data collection methods. One hundred and ninety-two athletes competed at the 2018 ANNC’s with 96 athletes in each age group (17/U & 19/U).ResultsThere were 103 medical attention injuries sustained by 80 athletes resulting in an incidence rate of 89.4 per 1000 player hours. The most frequently recorded medical attention injury diagnoses across both age groups were lateral ankle ligament sprain (n = 14, 13.6%), foot blisters (n = 11, 10.7%), and lumbar pain (n = 10, 9.7%). Ankle sprains (n = 4), anterior cruciate ligament (ACL) ruptures (n = 3) and concussion (n = 3) recorded as the highest sports incapacity injuries. The self-report data collection revealed that 46 (27.2%) athletes arrived at the tournament with an existing self-reported injury/illness and 57 (39.3%) athletes had a self-reported injury/illness at the conclusion of the ANNC (RR 1.44 95%CI 1.05–1.99, p = 0.030).ConclusionThere are no recent studies reporting injury rates specifically in pre-elite netball players. This study found an incidence rate of 89.4 per 1000 player hours. Ankle sprains are the highest medical attention and sports-incapacity injury in pre-elite netball athletes. Foot blisters and low back pain also feature in the highest medical attention injuries and ACL rupture and concussion were high sports incapacity injuries at the ANNC’s. Finally, combining both the medical attention and self-report injury/illness data collection methods identified more injuries/illnesses than the use of one method alone.     

The epidemiology of back injuries in elite Gaelic football athletes: An 8-year prospective study

ObjectivesTo describe the epidemiology of back injury in elite male Gaelic football athletes between 2008 and 2016.DesignProspective cohort study.SettingInjury data from the National GAA Injury Surveillance Database.ParticipantsElite male Gaelic football athletes.Main outcome measuresIncidence of injury as a rate per 1000 h of exposure.Results38 datasets were analysed. Out of a total of 1606 time-loss injuries, 76 were back injuries (4.73%, 95% CI 3.80%–5.88%). The incidence of back injuries in match play was 1.72 (CI 95% 1.21 to 2.45) and in training was 0.2 (CI 95% 0.14 to 0.28) injuries per 1000 h of exposure. The majority of back injuries (63.16%, CI 95% 51.93–73.12) were new, as opposed to recurrent (35.53% CI 95% 25.7–46.74). Most back injuries were acute (51.32%, CI 95% 40.29–62.22), compared to chronic (31.58%, CI 95% 22.23–42.7) or overuse (11.84%, CI 95% 6.36–21.00). The majority of back injuries occurred during non-contact player activities (n = 60, 78.94% CI 95% 68.50–86.60).ConclusionsBack injury rates in Gaelic football are similar to soccer and Australian football but less than rugby union. Further research is needed to understand the factors leading to the onset and recurrence of back injury in Gaelic football athletes.     

Incidence of Achilles tendinopathy and associated risk factors in recreational runners: A large prospective cohort study

ObjectivesTo determine the incidence of Achilles tendinopathy in a large group of recreational runners and to determine risk factors for developing AT.DesignObservational cohort study.MethodsRunners registering for running events (5–42 km) in the Netherlands were eligible for inclusion. Main inclusion criteria were: age ≥18 years, and registration ≥2 months before the running event. The digital baseline questionnaire obtained at registration consisted of demographics, training characteristics, previous participation in events, lifestyle and previous running-related injuries. All participants received 3 follow-up questionnaires up to 1 month after the running event with self-reported AT as primary outcome measure. To study the relationship between baseline variables and AT onset, multivariable logistic regression analyses were performed.ResultsIn total, 2378 runners were included, of which 1929 completed ≥1 follow-up questionnaire, and 100 (5.2%, 95%CI [4.2;6.2]) developed AT. Runners registered for a marathon (7.4%) had the highest incidence of AT. Risk factors for developing AT were use of a training schedule (odds ratio (OR) = 1.8 (95%Confidence Interval(CI)[1.1;3.0])), use of sport compression socks ((OR = 1.7, 95%CI[1.0;2.8]) and AT in the previous 12 months (OR = 6.3, 95%CI[3.9;10.0]). None of the demographic, lifestyle or training-related factors were associated with the onset of AT.ConclusionOne in twenty recreational runners develop AT. AT in the preceding 12 months is the strongest risk factor for having AT symptoms. Using a training schedule or sport compression socks increases the risk of developing AT and this should be discouraged in a comparable running population.Trial registration numberThe Netherlands Trial Register (ID number: NL5843).     

The incidence,prevalence, severity,mechanism and body region of injury in elite junior Australian football players: A prospective cohort study over one season

Objectives

To describe the incidence, prevalence, severity, mechanism and body region of injuries in elite junior Australian football (AF) players over one competitive season in order to help inform injury prevention interventions.

Epidemiology of injuries in Australian junior rugby league players

ObjectivesConduct a large-scale epidemiological study of injury characteristics (location, type, mechanism, severity, burden) and incidence in community junior rugby league.DesignProspective cohort epidemiology study.MethodsInjury surveillance was conducted in three district leagues (Penrith, Canberra, Melbourne) in under 6 (U6) to under 18 years (U18) age groups across the 2016 season. Club sports trainers recorded all match/training medical-attention injuries using a commercial electronic application which recorded injury circumstances and characteristics.ResultsA total of 13,169 players from 897 teams participated and 408 (89% male) players sustained 485 injuries, 94% of which were match related. The overall injury incidence was 5.9 injuries/1000 player hours and highest in U13–U18 female players (22.2 injuries/1000 player hours). The mean injury severity of 16 ± 31 days missed training/match-play caused an overall injury burden of 94.2 days missed/1000 player hours). Tackles accounted for 84% of injuries. Joint and contusion injuries were the most prevalent injury type and the head (35% total injuries, primarily bruising and bleeding) was the most injured body site.ConclusionsThis is the first study to report injuries across a large cohort of all-age Australian community junior rugby league players over one season. Injury prevalence was lower than previously reported in junior rugby league suggesting the sport has not become more dangerous for junior players. These findings provide an evidence-base to inform or revise policy, training and injury prevention programs and athlete development pathways in relation to game-wide safety and develop best-practice protocols in injury management for rugby league athlete support personnel.     

Fielders and batters are injured too: A prospective cohort study of injuries in junior club cricket

Internationally, there is a lack of good quality, prospectively collected injury data reported for junior club cricketers. This study describes injury rates according to age level of play and playing positions in junior community-level club cricketers to identify priorities for prevention. A prospective cohort study was used to monitor injuries in 88 under 12 years (U12), 203 U14 and 120 U16 players from the Ballarat Junior Cricket Association, Australia over the 2007/2008 playing season. Injury rates were calculated per 1000 participations when batting, bowling or fielding in matches and training sessions. Injury rate ratios were used to compare rates across age levels of play and position of play. Overall, 47 injuries were reported. Injury rates increased with age level of play with only one U12 player injured. Match injury rates were 3.57 per 1000 U14 participations versus 4.80 per 1000 U16 participations. Training injury rates were 4.20 per 1000 U14 participations versus 5.11 per 1000 U16 participations. On a proportionate basis, injuries occurred equally to fielders, batters and bowlers. There was a trend towards more injuries occurring while batting and fielding in matches, and more injuries occurring while bowling and batting during training sessions. In conclusion, injury rates in junior cricket players are low, but increase with age level of play. Unlike adult forms of the game, injuries occur to fielders and batters at least as frequently as to bowlers, indicating that preventive strategies need to be developed for all junior players and not just bowlers, as has been the focus previously.     

Prognosis and prognostic factors of running-related injuries in novice runners: A prospective cohort study

Objectives

To investigate the prognosis and possible prognostic factors of running-related injuries (RRIs) in novice runners.

Playing through the pain: The prevalence of perceived shoulder dysfunction in uninjured rugby players using the Rugby Shoulder Score

ObjectiveThis study aimed to investigate the prevalence of self-reported shoulder dysfunction using the Rugby Shoulder Score (RSS) reported in arbitrary units (AU) of rugby players available for match selection (uninjured).DesignCross-sectional survey.MethodsPaper survey at the mid-point of the season of uninjured players (n = 86 males (mean age (±SD): 26 ± 6.9y) from 8 squads (professional n = 34; amateur; n = 52)), using the RSS, subjective impact on rugby performance and previous shoulder injury, analysed using a Mann-Whitney U test.Results55% of players reported a level of RSS dysfunction despite being uninjured. Players who also reported their shoulder was impacting on performance had significantly higher median RSS (61, IQR 28AU, p = 0.02) than those who reported no impact on performance (40, IQR 22AU). Conclusions: Findings from this study show that over half of players were playing with a level of self-reported shoulder dysfunction. This figure is higher in the professional game, for those with a history of previous injury and for forwards.     

Imaging of sports injuries in children and adolescents

Sports injuries may be unique in childhood and adolescence due to the inherent weakness of the growing skeleton at specific sites, mainly the cartilaginous parts. Many injuries are predictable based on the known mechanism of injury encountered in certain sports. There are two distinct patterns of injury in sports; acute, and chronic or overuse. Imaging plays an important role in the diagnosis and management of these entities. Radiologists should be familiar with the advantages and limitations of the various imaging modalities when evaluating the injured young athlete. The present review focuses on the radiological findings and appropriate imaging approach in injuries that are typically or most commonly encountered in the skeletally immature athletes.     

A one‐season prospective study of injuries and illness in elite junior tennis

The objective of this study was to estimate the incidence and prevalence of injury and illness among elite junior tennis players. A cohort of 73 players (11–14 years) in the 2012–2013 Dutch national high‐performance program was followed for 32 weeks; all participants completed the study. The OSTRC Questionnaire on Health Problems was used to record self‐reported injuries and illnesses and to record training and match exposure. Main outcome measures were average prevalence of overuse injury and illness and incidence density of acute injury. On average, players practiced 9.1 h/week (SD 0.6; range 2.3–12.0) and had 2.2 h of match play (SD 0.6; range 2.3–12.0). During the course of the study, 67 players reported a total of 187 health problems. The average weekly prevalence of all health problems was 21.3% (95% CI: 19.2–22.9), of which 12.1% (95% CI: 10.9–13.3) constituted overuse injuries and 5.8% (95% CI: 4.6–6.9) illnesses. The incidence of acute injuries was 1.2/1000 h of tennis play (95% CI: 0.7–1.7). The high occurrence of overuse injuries among elite junior tennis players suggests that an early focus on preventative measures is warranted, with a particular focus on the monitoring and management of workload.     

Gradual-onset surfing-related injuries in New Zealand: A cross-sectional study

ObjectivesGradual-onset injuries associated with surfing have not previously been closely examined. This study investigated the duration, mechanisms, body locations and types of gradual-onset injuries in a sample of New Zealand surfers.DesignRetrospective, cross-sectional online survey.MethodsSelf-identified surfers reported gradual-onset surfing-related injuries experienced in the preceding 12 months.ResultsRespondents (n = 1473, age range 8–74 years) reported a total of 550 gradual-onset major injuries: 44% acute duration (<3 months) and 56% chronic (≥3 months). The injury incidence proportion was 27%. Shoulder (146 injuries, 64% chronic), low back (115 injuries, 58% chronic) and neck (105 injuries, 46% chronic) were the most commonly reported injury locations. Prolonged paddling was the most commonly reported mechanism of injury (40% of all injuries). Incidence proportion for gradual-onset major injuries was 6% higher for greater surfing abilities compared to lower abilities (p=0.01), and 13% higher for long boarders compared to short boarders (p = 0.001). Respondents reporting any gradual-onset surfing injury, compared to those with no injury, averaged 3 more years surfing experience (p < 0.001), were 3 years older (p < 0.001), and reported 43 h more surfing exposure in the preceding 12 months (p<0.001).ConclusionsThe most common gradual-onset surfing injuries involved the shoulder, low back, and neck, most frequently attributable to paddling. Risk factors for these injuries included board type, higher ability, older age, more hours/year, and years of surfing. These findings affirm the existence of sufficient injury burden to justify investigation of surfing injury prevention initiatives.