bluuebunny/crossref_metadata_2025_split huggingface dataset:
A CONCEPT MAPPING APPROACH TO IDENTIFY PERCEIVED FACILITATORS TO ENHANCE THE IMPLEMENTATION OF INJURY PREVENTION TRAINING IN YOUTH TEAM HANDBALL: THE I-PROTECT PROJECT
Authors: Ageberg Eva , Bunke Sofia , Andersson Karolina , Nilsen Per , Donaldson Alex 
Published: August 2017

BackgroundEvidence-based injury preventive exercise programs (IPEPs) usually have limited public health impact because they are not widely implemented into regular training routines.ObjectiveTo identify facilitators that could help make IPEPs part of regular training routines in youth team handball.DesignEcological participatory approach incorporating the perspective of multiple stakeholders. This is the first phase in a series of studies within the “Implementing injury Prevention exercise ROutines in TEams and Clubs in youth Team handball (I-PROTECT)” project.SettingTwo community team handball clubs in Sweden offering organized training for youth players.ParticipantsStakeholders from multiple levels of youth handball.MethodsConcept Mapping (CM), a mixed-method approach for qualitative data collection and quantitative data analysis, was used. CM involves steps from generating statements from stakeholders to conceptualizing a framework for developing an implementation plan.Results179 stakeholders (32% players, 14% coaches, 42% caregivers, and 12% club, district and national handball administrators) participated in a brainstorming in response to the question “In order to make injury prevention training a part of our regular handball training routines I need….”. This generated 89 unique ‘facilitator’ statements which are currently being sorted into clusters and rated for ‘importance’ and ‘feasibility’ by 35 stakeholders. To date, data collection is completed for 11 of 35 stakeholders, yielding 5 clusters (stress value 0.255): “Understanding and motivation”, “Education, knowledge and consistency”, “Exercises and set-up”, “Routines and quality assurance”, and “Club policy and expert collaboration”. Statements rated as both highly important and feasible indicate that developing an IPEP and an associated implementation plan in partnership with all stakeholders should be a high priority.ConclusionsThe preliminary results suggest that developing an evidence-based context-specific IPEP and an associated context-specific implementation plan in partnership with all stakeholders should be a high priority to ensure successful IPEP implementation in youth team handball.
NEUROMUSCULAR TRAINING EFFECTS ON THE STIFFNESS PROPERTIES OF THE KNEE JOINT AND LANDING BIOMECHANICS OF YOUNG FEMALE RECREATIONAL ATHLETES
Authors: Wang Dan , Vito Giuseppe De , Ditroilo Massimiliano , Delahunt Eamonn 
Published: August 2017

BackgroundStiffness properties of the knee joint and landing biomechanics are important factors linked to injury risk. Neuromuscular training may mitigate the risk injury and simultaneously improve sports performance.ObjectiveTo investigate the effect of neuromuscular training on the stiffness properties of the knee joint and landing biomechanics of young female recreational athletes.DesignQuasi-experimental study.SettingBiomechanics laboratory.ParticipantsTwenty-six female recreational athletes.InterventionsIntervention group: combined plyometric (drop jump movements, cutting techniques with quick reactions and maximal effort) and resistance (body-weight, dumbbell and Thera-Band®exercises) training, 3 times/week for 6 weeks; control group: regular physical activity.Main Outcome MeasurementsPeak torque of the knee extensors, relaxed and contracted muscle stiffness of the vastus lateralis, knee joint musculoarticular stiffness (MAS), and drop vertical jump (DVJ) performance were assessed pre- and post-intervention.ResultsPost-intervention MAS increased significantly (pre-1657.58±338.53 Nm−1,post-1930.79±419.15 Nm−1) in the intervention group only. Additionally, compared with the control group the intervention group exhibited an increased rate of torque development (pre-905.13±90.31 Nms−1,post-1076.35±93.14 Nms−1), decreased knee valgus (pre-7.86±5.86 °;post-2.48±5.34 °), increased maximum knee flexion (pre-73.17±9.32 °;post-79.68±9.70 °), increased flight time (pre-0.43±0.04 s;post-0.46±0.03 s), an increase in DVJ height (pre-0.23±0.04 m;post-0.26±0.04 m), as well as decreased peak ground reaction force of the first (pre-2.44±0.60 Nkg−1;post-1.83± 0.47 Nkg−1) and second landings (pre-2.34±0.86 Nkg−1;post-2.06±0.92 Nkg−1) of the DVJ.ConclusionsNeuromuscular training can improve the stiffness characteristics of the knee joint and landing biomechanics of recreational female athletes.
CARDIOVASCULAR INCIDENTS, INCLUDING SUDDEN CARDIAC ARRESTS, IN PROFESSIONAL MALE FOOTBALL PLAYERS WITH NEGATIVE PRE-PARTICIPATING CARDIAC SCREENING RESULTS AN 8-YR FOLLOW-UP STUDY
Authors: Berge Hilde Moseby , Andersen Thor Einar , Bahr Roald 
Published: August 2017

BackgroundThe aim of preparticipation cardiac screening of athletes is to detect cardiovascular disease at an early stage to prevent sudden cardiac death and sudden cardiac arrest. Few studies focus on consequences of false negative findings.ObjectiveThe main objective of this study was to identify cardiovascular incidents in a cohort of male professional football players with negative screening results.DesignRetrospective eight years follow-up study.SettingFollow-up of systematic preparticipation cardiac screening completed prior to the 2008 football season of 604 players cleared for full participation in the Norwegian professional leagues, including player and family history, electrocardiography and echocardiography.Patients (or Participants)All players who suffered severe cardiovascular incidents during 8 years of follow-up.Interventions (or Assessment of Risk Factors)Media search with key words football and cardiovascular incidents in Norway from January 1st 2008 until February 13th 2016. We collected medical records from players with disease and compared preparticipation cardiac screening results with outcome.Main Outcome MeasurementsPlayers from the original cohort who suffered sudden cardiac death or arrest, angina pectoris or myocardial infarction, transitory ischemic attack, cerebral haemorrhage or infarction, atrial flutter or fibrillation, blood clot, myocarditis or pericarditis.ResultsSix players with negative screening results, median age 30 years (27–36), had experienced cardiovascular incidents during follow-up. Three players had suffered sudden cardiac arrest, one myocardial infarction, one transitory ischemic attack and one atrial flutter. Four of the incidents happened during or straight after a match, and one during training.ConclusionsMore than 1 in 100 players with negative screening results suffered severe cardiovascular incidents, included three sudden cardiac arrests, within 8 yrs of follow up. Mandatory preparticipation cardiovascular screening of professional soccer teams in Norway was not able to prevent this.
SPORTS-RELATED ELBOW ULNAR COLLATERAL LIGAMENT INJURY IN THE 21ST CENTURY
Authors: Zaremski Jason , McClelland JoAnna , Vincent Heather , Vincent Kevin , Herman Daniel , Smith Michael Seth , Prine Bryan , Farmer Kevin , Moser Michael , Horodyski MaryBeth 
Published: August 2017

BackgroundElbow ulnar collateral ligament (UCL) injuries are common injuries in adolescent athletes, particularly overhead athletes. Surgical UCL incidence and outcomes are well-researched, but non-surgical UCL injury patterns and management in developing athletes are not clear.ObjectiveTo determine patterns of UCL injuries among competitive athletes aged 11–22 years. We hypothesized that non-surgical UCL injuries occurred more frequently in younger athletes during the time frame of 2000–2016.DesignDescriptive epidemiological study.SettingAcademic, tertiary medical center.Patients (or Participants)Electronic medical records and key word searches were used to identify patients with UCL injuries sustained during competitive athletics (N=136).Interventions (or Assessment of Risk Factors)Age, time of injury by year, sport classification, sex.Main Outcome MeasurementsUCL injuries and severity; injury management (surgical, non-surgical).ResultsThere were 53 surgical and 83 non-surgical UCL injuries. Non-surgical cases increased nine-fold from 2009–2016 compared to 2000–2008. Injury distribution was as follows: 60 sprains, 39 partial tears, 36 ruptures, 1 re-rupture. 92% of sprains did not undergo surgical intervention, whereas 51% of partial tears and 78% of ruptures underwent UCL-Reconstruction (UCL-R). There are increasing numbers of UCL injuries with increasing age; X2(4,136)=14.209, p=0.007. Non-surgical UCL injuries occurred in highest frequency in the youngest athletes (100% of total injuries in 11–13 years; 71.4% of 14–16 years; 44.3% of 17–22 years). UCL injury volume was most commonly associated with the sports baseball (OR 1.55, p=0.32; 95% CI 0.69–3.51), softball (OR 0.76, P=0.76, 95% CI 0.22 to 2.68), American football (OR 0.50, p=0.48; 95% CI 0.10–2.59, and javelin (OR 6.69, p=0.07; 95% CI 0.72–61.62).ConclusionsYounger athletes are sustaining more frequent, less severe UCL injuries. Enforcement of appropriate rest, proper sport-related mechanics and diversifying sport participation are important to prevent a) UCL injury at a young age, and b) progression of a non-surgical injury to a potential UCL-R.
TRAINING VOLUME AND CONCUSSION RISK IN MALE YOUTH ICE HOCKEY PLAYERS: A PRIMARY PREVENTION PERSPECTIVE
Authors: Blake Tracy , MacDonald Kerry , Palacios-Derflingher Luz , Emery Carolyn 
Published: August 2017

BackgroundThere is a growing body of evidence illustrating the contribution of training load to musculoskeletal injury risk. There is a gap in the literature, however, regarding the impact of training on concussion risk.ObjectiveTo evaluate the association between sport-specific participation volume and concussion risk in male youth ice hockey players.DesignCohort study.SettingCommunity ice rinks and sport medicine clinics (2011–15 hockey seasons).Patients (or Participants)Male Pee Wee (11–12 years old), Bantam (13–14 years old) and Midget (15–17 years old) ice hockey players were eligible. Players were excluded if they reported unhealed injuries at study entry, had missing/systematically incomplete hockey participation exposure data, or if they sustained a concussion but participation volume could not be estimated from the day of injury.Interventions (or Assessment of Risk Factors)Cumulative hockey participation volume (CPHV) was estimated based on participation exposure data reported by team designate. The association between concussion risk and total 7-day and 28-day CHPV was evaluated using multivariable logistic regression [OR (95%CI)]. Models were adjusted for concussion history and cluster by player (α<0.05). ORs with 95%CI that did not cross one were considered significant.Main Outcome MeasurementsMedically diagnosed concussion.ResultsParticipants who met the inclusion criteria (n=1235/1990) sustained 34 medically diagnosed concussions. Increased concussion risk was associated with hourly increases in 7-day CHPV [OR=1.16 (95%CI: 1.08–1.25), p<0.05] and 28-day CHPV [OR=1.04 (95%CI: 1.01–1.06), p<0.05]. There was no evidence of effect modification or confounding by concussion history.ConclusionsIncreased hockey participation volume was associated with increased concussion risk in male youth ice hockey players. This is the first study to explore the association between training volume and concussion risk. Future research utilizing objective volume measurements and training response tools will be critical to the development of primary concussion prevention strategies that optimize the role of training load.
DOES CONCUSSION EDUCATION HAVE AN IMPACT IN BEHAVIOURS AMONGST SCHOOL-AGE RUGBY PLAYERS?
Authors: Bosshardt Christopher , Kipps Courtney , England Mike 
Published: August 2017

BackgroundConcussion is a common injury in school-boy rugby, if managed incorrectly it can have serious consequences such as further injury, prolonged symptoms, and second impact syndrome. Adolescent players show poor knowledge levels and symptoms-reporting behaviour.ObjectiveInvestigate the effects of an educational presentation on the knowledge and behaviour of school age rugby players regarding concussion.DesignQuestionnaire based study.Setting120 male rugby players, aged 16–18.ParticipantsThree large rugby union playing schools in England.InterventionsIndependent Variable – Educational presentation aimed at school-age rugby players to improve their education and behaviours related to the condition. Players completed a questionnaire testing for likely behavioural responses from a selection of common concussion scenarios. Additional questions assessed knowledge of concussion symptoms, diagnosis and management. The questionnaires were completed pre-season and repeated 2–3 months after the presentation.OutcomeDependent variable: Questionnaire scores.ResultsThe students had significantly improved their responses giving 53.9% appropriate responses after the presentation (Md=55,n=34) compared to 46.1% before (Md=33.5,n=34) (U=400,Z=−2.18,p=0.029) with a moderate effect size (r=0.37). The knowledge of students increased from 37.85% correct responses before (Md=28,n=35) and 44.07% on follow up (Md=28,n=35) but with no significant difference (U=575.5,Z=−0.88,p=0.378 with a small effect size (r=0.15)). Completed surveys showed increased awareness of guidelines from 19.4% to 73.2% (p=0.00 McNemar's Test).ConclusionsThe students had showed improved concussion behaviour in response to concussion scenarios at 2–3 month follow up in contrast to previous studies on educational interventions. There was no increase in players' knowledge of concussion. The literature shows increases in short-term knowledge with other forms of concussion education but this effect is often lost at long term follow up. There was increased awareness of guidelines. Future concussion education should be modelled on the educational presentation to improve behavioural outcomes.
SUBJECTIVE SLEEP QUALITY IN ELITE WOMENS INTERNATIONAL SOCCER PLAYERS PRIOR TO AN INTERNATIONAL MATCH
Authors: Boyce Stephen , McKenna Michael , White Andrew , Davies Oliver , Dixon Mark , Elliott Niall 
Published: August 2017

BackgroundSleep has been found to have many recuperative and restorative effects on an athlete's recovery and preparation for a match. In international soccer it is common that players have to sleep in unfamiliar locations (e.g. hotel) prior to matches however little is known about the quality of sleep achieved in a hotel compared with at home.ObjectiveTo assess the quality of sleep in elite women's international soccer players prior to a domestic international fixture in comparison to sleep at home.DesignProspective observational study.SettingScotland women's soccer national squad.ParticipantsElite women international soccer players.Interventions21 female international soccer player's sleep quality was monitored in the weeks before and during four different domestic international camps with the use of a mobile application that was filled out each morning immediately after awakening.Main Outcome MeasurementsThe sleep quality was assessed using a subjective 10-point scale with 1 being negative and 10 being positive. For differences in sleep quality, an independent t-test was used to compare means. Statistical significance was set at p<0.05.ResultsThere was no significant difference when comparing sleep quality at home with that of in a hotel in the lead up to a women's home international soccer match (7.44±1.32 vs. 7.36±1.16, p=0.39).ConclusionsThe findings of the present study indicate that the subjective sleep quality of female soccer players is not reduced in a hotel prior to a domestic international match and is not compromising recovery and preparation for the match. Further research is required to determine whether this is the same for away international fixtures involving travel.
PREVALENCE OF ACETABULAR LABRAL TEARS IN ASYMPTOMATIC YOUNG ATHLETES
Authors: Briggs Karen , Philippon Marc , Ho Charles , McNamara Shannen 
Published: August 2017

BackgroundYouth sport injuries are on the rise. These injuries at an early age may prevent young people from continuing with sports or eventually limit their ability to participate in physical activity.ObjectiveThe purpose of this study was to determine the prevalence of acetabular labral tears in athletes 19 years of age or younger who compete in a club sport.DesignScreening Program.SettingYouth sports.Patients (or Participants)101 (93 males, 8 females) skiers (20) and hockey players (81) with no symptoms around the hip, no history of hip injury or surgery, and parental consent. Average age was 15 (range 11 to 19) years.Interventions (or Assessment of Risk Factors)Participants completed an initial questionnaire and had a clinical exam (hip range of motion, impingement test, hip dial test, FABER distance test). All participants had 3T MRI of dominant hip.Main Outcome MeasurementsPositive exam findings and labral tear on MRI.ResultsLabral tears were identified in 70 hips. Average alpha angle was 59 degrees. 89% of the participants 16 years of age or older had labral tears and 56% of the participants 16 years of younger had labral tears. Participants 16 years of older were 7 times more likely to have a labral tear [95% CI: 1.9 to 28] than participants under the age of 16. Participants who had participated in their sport 9 years or greater were 4.9 times more likely to have a labral tear [95% CI: 1.5 to 16.1] compared to participants who had participated less than 9 years.ConclusionsThis study also showed a high prevalence of labral tears in the asymptomatic young athlete. Patients who were older and participated in their sport longer had increased risk of a labral tear. Limiting certain at risk movements when the young athlete is growing has potential for prevention.
EPIDEMIOLOGY OF SPORTS INJURIES AMONG MIDDLE SCHOOL STUDENTS
Authors: Caswell Shane , Prebble Matthew , Romm Kaitlyn , Ambegaonkar Jatin , Caswell Amanda , Cortes Nelson 
Published: August 2017

BackgroundParticipation in youth sports is increasing. Yet, limited research on the incidence and severity of injuries within middle school sports(MSS) exists.ObjectiveDescribe the epidemiology of injuries in MSS within a large metropolitan school system located in the US.DesignProspective descriptive epidemiology.SettingInjury data collected in 9-MSS programs during 2015–2016.Patients (or Participants)Boy(n=1194) and girl(n=1008) athletes(age=11–14 years) participating in 12 school sponsored sports.Interventions (or Assessment of Risk Factors)Each of the 9 schools was assigned an athletic trainer(AT) who attended all practices and games during the fall, winter, and spring sports seasons of 2015–2016.Main Outcome MeasurementsATs collected injury and athlete-exposure(AE) data. Injury frequencies and rates with 95% confidence intervals(95%CI) for practices and games were described by sport for all injuries (no-time-loss and time-loss). Injury proportions were described by body region.Results1643 injuries(182.6±64.8 injuries/school) were reported. Highest rates of injury were: Girls' basketball (39.4/1000AE 95% CI: 34.7–44.1), American football (30.7/1000AE 95% CI: 27.3–34.1), wrestling (28.7/1000AE 95% CI: 24.4–32.9), and girls' soccer (26.3/1000AE 95% CI: 22.1–30.6). Lowest rates of injury were: Girls' volleyball (9.1/1000AE 95% CI: 6.7–11.6), boys' baseball (10.2/1000AE 95% CI: 6.8–13.5), cheerleading (10.6/1000AE 95% CI: 8.5–12.8), and boys' soccer (14.7/1000AE 95% CI: 11.8–17.7). Most injuries occurred during practice (n=889, 54%) compared with games (n=390, 24%). The top three injured body regions injured were: lower extremity (n=744, 45%), upper extremity (n=409, 25%), and head (n=297, 18%). The highest rates of concussion were: football (2.9/1000AE 95% CI: 1.9–4.0), girls' soccer (2.2/1000AE 95% CI: 0.9–3.4), and cheerleading (1.1/1000AE 95% CI: 0.4–1.8). Most concussions occurred during practice (47.3%) compared with games (34.5%).ConclusionsConsistent with previous research a greater proportion of MMS injuries occurred during practices than games. However, our finding that girls' basketball had the highest injury rate differs from prior research. Overall, our rates were higher than those previously reported, yet more precise given our sample size and detailed documentation AE. Our findings highlight the need for medical care at MMS practices and games.
THE EFFECT OF ANKLE TAPING ON SHOCK ABSORPTION CHARACTERISTICS OF LOWER EXTREMITY
Authors: Cho Joon-Haeng , Jun Hyung-pil , Lee Young Hee , Lee Sae Yong 
Published: August 2017

BackgroundAnkle taping has been widely used to prevent recurrent ankle sprain during dynamic tasks. However, it may alter joint stiffness result in an adverse effect on a shock absorption to the entire lower extremity kinetic chain during landing due to a restricted ankle joint.ObjectiveTo investigate changes in lower extremity biomechanics with and without taping during drop landing (DL).DesignCase control study.SettingLaboratory.Patients (or Participants)A total of active 53 male college students with no history of lower extremity surgery or injury were participated.InterventionsEach participant performed eight drop landings (four before and four after ankle taping). Eight infrared-optical cameras system (Vicon Motion Systems Ltd. Oxford, UK) and force-plates (Bertec Corporation. Columbus, OH) were used to collect all kinematics and kinetics during DL.Main Outcome MeasurementsSagittal plane joint kinematics and kinetics were extracted between initial contact and maximum knee flexion angle. Cohen'sDeffect size (d) and 95% confidence interval (CI) were calculated to analyze size of difference.ResultsSagittal plane total excursion of the ankle was statistically decreased (d=1.01,CI:0.61∼1.42) but knee and hip were not changed after taping. Joint stiffness showed no significant changes at the ankle (d=−0.25,CI:−0.63∼0.13), knee (d=−0.11,CI:−0.49∼0.27), and hip (d=−0.12,95% CI:−0.51∼0.26) after taping There were significant decrease in both eccentric work (d=−0.78,95% CI:−1.18∼-0.39) and contribution to total work (d=0.58, CI:0.19∼0.97) at ankle while no changes observed in the knee and the hip.ConclusionsEven though ankle taping reduces ankle joint total excursion during DL and may impact on ankle stiffness, it does not alter proximal joint kinematics and stiffness. Reduced both eccentric work and%work at the ankle joint indicates possible changes in shock absorption mechanism during landing. Therefore, the clinicians may consider the importance of proximal joint movement strategy to attenuate shock during landing.