In Response to: Preworkout Supplement–Induced Hemorrhagic Stroke: A Case Report
No abstract available (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Letter to the Editor Source Type: research

Rare Cause of Syncope in an Athlete, Matter of Brain and Heart Electricity
Abstract: A 17-year-old elite triathlete presented with recurrent loss of consciousness events. Implantable loop recorder (ILR) documented sinus node asystoles of up to 21 seconds. She underwent cardiac neuromodulation ablation. After ablation, a generalized tonic–clonic seizure (GTCS) occurred, without concomitant asystole on the ILR. Temporal lobe seizures were diagnosed and supported by interictal epileptic activity on electroencephalogram. We assumed that the syncope episodes were ictal asystole (IA) and that the IA terminated the epileptic seizures early after their onset. The cardiac ablation prevented IA, ...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Case Report Source Type: research

A Half-Century of Evidence-Based Cardiac Rehabilitation: A Historical Review
Conclusions: Research conducted in Toronto and elsewhere has established the benefits of exercise-centered cardiac rehabilitation. However, there remains a need to define the optimum timing of program onset, and the frequency, intensity, and duration of supervised training sessions. Return to blue-collar occupations also needs to be boosted, and the limited participation of eligible patients in available programs remains a continuing challenge. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: General Review Source Type: research

Epidemiology of Achilles Tendon Rupture in Italian First Division Football (Soccer) Players and Their Performance After Return to Play
Conclusions: An overall ATR rate of 0.007 per 1000 hours of soccer play and an incidence proportion of 0.17% were reported. All footballers return to play; however, up to 40% players decreased the level of play by reducing the number of games or participating in a lower Division 2 seasons after an ATR. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: General Review Source Type: research

Consequences and Prognosis of Running-Related Knee Injuries Among Recreational Runners
Conclusions: Nonrecovered participants adjusted running speed more often and had knee imaging more often than recovered participants. At follow-up, one-third of the participants were not recovered. This emphasizes the need for injury prevention programs for runners. More knowledge on the role of running in knee OA seems important, given the high number of participants with knee OA symptoms. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Prevalence of Elevated Blood Pressure and Risk Factors for Hypertension in College Athletes
Objective: To compare the prevalence and risk factors for hypertension (HTN) in college athletes using the new (≥130/80 mm Hg) versus prior (≥140/90 mm Hg) US hypertension guidelines. Design: Retrospective cohort study. Setting: Eleven Pacific-12 Conference institutions. Participants: Of the 8602 athletes enrolled in the primary study, 4977 (57.9%) met inclusion criteria. Athletes were included in the study if age (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Insertional Calcific Tendinopathy of the Achilles Tendon and Dysmetabolic Diseases: An Epidemiological Survey
Conclusion: Insertional calcific tendinopathy of the Achilles tendon is common, but few patients are symptomatic. The incidence of ICT increases with age and is significantly higher in patients with diabetes mellitus and hypothyroidism. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Medical Encounters in a 90-km Ultramarathon Running Event: A 6-year Study in 103 131 Race Starters—SAFER XVII
Conclusion: The incidence of MEs in the 90-km Comrades Marathon was one of the highest incidences of MEs reported in an endurance running event (1 in 52 starters and 1 in 556 starters for serious/life-threatening MEs). Preventative measures to reduce MEs are needed, and further investigations into the risk factors associated with MEs could assist in managing the risk and better prepare athletes, race organizers, and medical directors. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Age-Group Differences and Annual Variation in Return-To-Play Practices After Sport-Related Concussion
Conclusion: Similar postinjury and RTP management practices were observed at the high school and collegiate levels after SRCs. Symptom duration and time from injury to unrestricted RTP were comparable, although high school athletes may have longer SFWPs. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Concussion Baseline Retesting Is Necessary When Initial Scores Are Low
Objective: To determine whether (1) initial baseline scores are significantly better for those who have valid (initial valid) versus invalid scores (initial invalid) on their concussion baseline testing, (2) retesting results in significantly improved baseline scores, and (3) there is a significant difference in scores between those who have valid scores on their initial attempt and those who retook baseline tests (retest valid). Design: Prospective, repeated-measures. Setting: Two years of collegiate preparticipation concussion baseline testing. Participants: Five hundred forty-seven male and fema...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Medical Diagnoses in a University Athlete Training Room Clinic
Conclusions: Approximately two-thirds of athletes were evaluated annually with an average of 2 encounters per athlete per year. Upper respiratory infection represented the most common individual diagnosis. The results reported in this study may be useful in directing future care and research of university athletes. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Calcaneal Bone Bruise After Surgery for Insertional Achilles Tendinopathy
Conclusions: We describe 8 athletes who developed painful CBB following routine EPCC for insertional Achilles tendinopathy after having increased their level of activities too soon after the index procedure. In these patients, the diagnosis of postoperative CBB can be formulated by MRI and more cautious rehabilitation implemented. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Pelvic Region Avulsion Fractures in Adolescent Athletes: A Series of 242 Cases
Conclusions: Pelvic avulsion fractures are a rare injury in adolescent athletes. Males are twice as likely to experience these injuries and are older at presentation compared to females. Conservative management leads to successful outcomes in most cases. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Identification of Knee Effusions With Ultrasound: A Comparison of Three Methods
Objectives: To determine whether simple methods can improve identification of suprapatellar joint fluid during sonographic evaluation of the knee. Design: Prospective cohort study. Setting: Outpatient orthopaedic clinic. Patients: Fifty-two patients were sequentially recruited from an orthopaedic clinic. Interventions: Bilateral sonographic evaluation of the suprapatellar recess with static scanning, parapatellar pressure, or patient-initiated quadriceps contraction. Main Outcome Measures: Identification of fluid in the suprapatellar recess. Results: Fifty-two patients (104 kne...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Three Sessions of Radial Extracorporeal Shockwave Therapy Gives No Additional Benefit Over “Minimal-Dose” Radial Extracorporeal Shockwave Therapy for Patients With Chronic Greater Trochanteric Pain Syndrome: A Double-Blinded, Randomized, Controlled Trial
Conclusion: There were no time × group interaction effects seen between the groups at any time point, indicating that in the 3 sessions, the “recommended-dose” rESWT had no measurable benefit compared with “minimal dose” rESWT in this group of patients with GTPS. The underlying reason remains unclear; it may be that rESWT is ineffective in the treatment of patients with chronic GTPS, that “minimal dose” rESWT is sufficient for a therapeutic effect, or that a greater number of treatment sessions are required for maximal benefit. These issues need to be considered in further rese...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

COVID Vaccination in Athletes and Updated Interim Guidance on the Preparticipation Physical Examination During the SARS-Cov-2 Pandemic
Abstract: The American Medical Society for Sports Medicine (AMSSM) convened an expert panel to address the current evidence, knowledge gaps, and recommendations surrounding the COVID vaccination in athletes during the SARS-CoV-2 pandemic. The group held a series of meetings beginning in July 2021 and reviewed the available literature while using an iterative process and expert consensus to finalize this guidance statement. This document is intended to provide clinicians with suggestions on how to incorporate the COVID vaccination during the preparticipation physical examination for athletes in all levels of training an...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Position Statement Source Type: research

Practical Management: Telehealth Examination for Sport-Related Concussion in the Outpatient Setting
This article presents the telehealth version of the Buffalo Concussion Physical Examination (BCPE) (Tele-BCPE). It is a brief, focused telehealth PE for use in the outpatient setting by sports medicine physicians, pediatricians, neurologists, and primary care physicians. It is derived from the BCPE and includes general considerations for providers performing telehealth services and instructions for adapting traditional clinical tests for virtual use. The Tele-BCPE includes an orthostatic intolerance screen, examination of the cranial nerves, and tests of the oculomotor, vestibular, and cervical systems. It is meant to be u...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Practical Management Source Type: research

Female Athlete Hip Injuries: A Narrative Review
Conclusions: Given unique anatomic and functional considerations, the growing population of female athletes worldwide warrants specialized care and consideration. Potential predisposition to specific hip injuries should be taken into consideration during diagnostic evaluation of hip pain in the female athlete. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: General Review Source Type: research

Concussion Knowledge and Reporting Behaviors Among Collegiate Athletes
Objective: The purpose of the current study was to explore knowledge surrounding sport-related concussions (SRCs) and the impact on reporting behaviors in collegiate athletes, including sex differences. Design: Cross-sectional. Setting: Institutional. Participants: Participants were 986 collegiate athletes (607 men), aged 19.7 years (SD = 1.4) from 6 institutions, who completed a survey, including items on personal/sport demographics and SRC knowledge and reporting behaviors. Interventions: Athletes were given a short (15-minute) survey to complete during team meetings and preparticipation p...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Sleep Insufficiency and Baseline Preseason Concussion-Like Symptom Reporting in Youth Athletes
Objective: To examine the association between insufficient sleep and baseline symptom reporting in healthy student athletes. Design: Cross-sectional cohort study. Setting: Preseason testing for student athletes. Participants: Student athletes (n = 19 529) aged 13 to 19 years who completed the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT), including the number of hours slept the night before, and denied having developmental/health conditions, a concussion in the past 6 months, and a previous history of 2 or more concussions. Independent Variables: Total hours of s...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Vestibular/Ocular Motor Screening is Independently Associated With Concussion Symptom Severity in Youths
Objective: To examine the independent contributions of the Vestibular/Ocular Motor Screening (VOMS) to concussion symptom severity in youths while controlling for computerized neurocognitive screening performance, demographics, and medical history. Study Design: Cross-sectional. Setting: Concussion specialty clinic. Participants: A retrospective review of 278 concussed youths clinical charts resulted in a total of 158 participants (16.5 ± 2.8 years, 46.8% women, 4.3 ± 3.3 days post-injury) when exclusionary criteria (ie, neurological or substance use disorders, age>21,>14 days s...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Sports Medicine Physician Decision-Making, Practice Changes, and Mental Health During the Early Phase of the SARS-CoV-2 Global Pandemic
This study aimed to identify its effects on sports medicine physicians during the early phase of this pandemic. Design: Survey study. Setting: Sports medicine providers. Participants: Physician members of the American Medical Society for Sports Medicine were surveyed between March 25 and April 4, 2020. A total of 810 responses were obtained from 2437 physicians who viewed the survey. Interventions: The survey consisted of questions examining demographics, prepandemic practice patterns, anxiety and depression screening, and new beliefs and behaviors following government-based medical policy chang...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Anxiety and Depressive Symptoms During the COVID-19 Emergency Period: A Comparative Cross-Sectional Study in Professional Football
Objective: The primary objective of our study was to establish the prevalence of anxiety and depressive symptoms among professional football (ie, soccer; hereinafter “football”) players during the COVID-19 emergency period, drawing comparisons with players assessed before exposure to the COVID-19 emergency period. Design: Observational comparative cross-sectional study by means of electronic questionnaire. Setting: Professional football. Participants: A total of 468 female (mean age: 22.8 years) and 1134 male (mean age: 26.0 years) players participated. The non–COVID-19 comparison...
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

American Medical Society for Sports Medicine Position Statement on the Care of the Athlete and Athletic Person With Diabetes
This article reviews the current knowledge and gaps regarding the benefits and risks of various types of exercise and management issues for athletes and physically active people with diabetes, including nutrition and rehabilitation issues. Resistance exercises seem to be beneficial for patients with type 1 diabetes, and the new medications for patients with type 2 diabetes generally do not need adjustment with exercise. In preparing this statement, the authors conducted an evidence review and received open comment from the AMSSM Board of Directors before finalizing the recommendations. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Position Statement Source Type: research

Weighted Ball Velocity Throwing Programs Are Effective. Are the Benefits Worth the Risk?
No abstract available (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Editorial Source Type: research

Social Media and the Sports Medicine Physician
No abstract available (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Editorial Source Type: research

Sports Psychiatry: An Update and the Emerging Role of the Sports Psychiatrist on the Sports Medicine Team
No abstract available (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - December 24, 2021 Category: Sports Medicine Tags: Editorial Source Type: research

Reply
No abstract available (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Letters to the Editor Source Type: research

In Response to: Risk of Muscle Damage With Blood Flow–Restricted Exercise Should Not Be Overlooked
No abstract available (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Letters to the Editor Source Type: research

In Response to: The Efficacy of Sustained Heat Treatment on Delayed-Onset Muscle Soreness
No abstract available (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Letters to the Editor Source Type: research

Deep Venous Thrombosis With Symptomatic Bilateral Pulmonary Embolism After Using an Infrapatellar Strap for Patellofemoral Pain in an Athletic Cardiothoracic Surgeon
In this report, we describe the occurrence of localized deep venous thrombosis (DVT) after use of an infrapatellar strap. Until now, external mechanical compression has not been recognized as a cause of DVT. In young and athletic patients presenting with DVT, after exclusion of the most prominent risk factors, untraditional causes should be considered to mistakenly label a DVT as unprovoked. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Case Report Source Type: research

Preworkout Supplement Induced Hemorrhagic Stroke: A Case Report
Abstract: Hemorrhagic stroke is a catastrophic cause of both long-term morbidity and mortality. Many risk factors for development of these strokes are in fact preventable or modifiable in nature. This case report outlines an incident involving a previously healthy 24-year-old man with no apparent risk factors apart from consumption of preworkout supplementation who developed a hemorrhagic stroke. The supplements that this particular patient was consuming included various potential causative agents—with the most significant being Dendrobium extract, which contains compound B-phenylethylamine, a precursor in the am...
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Case Report Source Type: research

Burden of Injury and Illness in the Road Race Medical Tent: A Narrative Review
Conclusions: On-site medical services play a key role in the safety of both runners and the community. Future research and care initiatives in this field should focus on optimizing treatment protocols, promoting injury prevention efforts and reducing host community costs. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: General Review Source Type: research

Pediatric Obesity and Sports Medicine: A Narrative Review and Clinical Recommendations
Conclusions: Sports medicine clinicians should be aware of the common MSK and sports-related conditions in children with obesity. Few studies have focused investigations on issues related to children with obesity participating in sports and other physical activities. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: General Review Source Type: research

Using a Likelihood Heuristic to Summarize Conflicting Literature on Predictors of Clinical Outcome Following Sport-Related Concussion
Conclusions: Using a likelihood heuristic with 80% power and 5% alpha level, there is very strong likelihood evidence that female sex, prior concussion history, and retrograde amnesia are associated with worse clinical outcome following sport-related concussion. The strength of likelihood evidence that prognostic factors are associated with worse clinical outcome reduces when statistical power is lower and alpha level is inflated. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Critical Review Source Type: research

Epidemiology of Injuries in Elite Badminton Players: A Prospective Study
Objective: To determine the incidence and characteristics of injuries in elite badminton players over a competitive season. Design: Prospective cohort study. Setting: The French National Institute of Sport, Expertise, and Performance (INSEP). Participants: Twenty international elite badminton players. Independent Variables: The type, the location, the occurrence of the injury (match or training), the footwork type, the type of shot, and the perceived fatigue were collected. Main Outcome Measures: Injury incidence rates were calculated per 1000 hours of play (Hop). Results: Thir...
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Brief Report Source Type: research

Screening Identifies Suboptimal Vaccination Protection in Illness-Susceptible Elite Athletes
Conclusion: A significant proportion of elite athletes preparing for Olympic competition seem to be at risk of mumps infection. In addition, RTI-susceptible and asthmatic athletes exhibit suboptimal pneumococcal antibody responses, highlighting a need for prospective immune screening in athletes to ensure vaccination strategies are effectively delivered. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Brief Report Source Type: research

Providing a Medical Definition of Concussion: Can a Simple Intervention Improve Self-Reported Concussion History in Youth Athletes?
Objective: Providing a medical definition of concussion improves reliability of self-reported history of concussion in adult former athletes. We examine whether providing a medical definition of concussion to youth athletes increases the number of concussions reported, and whether reporting differs by age, sex, or sport type. Design: Cross-sectional survey. Setting: Concussion specialty clinic. Participants: Convenience sample of youth athletes (n = 301; mean age = 15.1 ± 1.6 years) presenting for evaluation of sports-related concussion. Independent Variables: Number of concussions re...
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Brief Report Source Type: research

Sledding-Related Injuries Among Children and Adults Treated in US Emergency Departments From 2008 to 2017
Conclusions: Although sledding-related injuries decreased over the study period, more research and education to prevent these injuries is needed. The injury patterns and risk of injury type differed by age, with more head injuries sustained by children. Sledding should be performed in obstacle-free areas to reduce the risk of collision and while wearing helmets to mitigate head injuries. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

The Influence of Time of Season on Injury Rates and the Epidemiology of Canadian Football Injuries
Conclusions: There was a 1% decline in injury rate per week during the season and a 30% decline during the playoffs. The number of ongoing time-loss injuries increased over the regular season. Current results can aid league officials and medical staff in making evidence-based decisions concerning player safety and health. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

A New In-Skates Balance Error Scoring System for Ice Hockey Players
Conclusions: The SBESS, omitting the tandem stance, is a safe and reproducible sideline balance assessment of ice hockey players wearing full equipment. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Incidence of Total Knee Replacement in Patients With Previous Anterior Cruciate Ligament Reconstruction
Objective: To determine the rate of total knee replacement (TKR) after anterior cruciate ligament reconstruction (ACL-R) compared to the general population. Design: Retrospective review. Setting: All hospitals that performed TKR and ACL-R in Manitoba between 1980 and 2015. Participant: All patients that underwent TKR and ACL-R in Manitoba between 1980 and 2015. Intervention: Patient factors gathered at time of surgery included: age, sex, urban or rural residence, neighborhood income quintile, and resource utilization band (RUB). Each person was matched with up to 5 people from the general po...
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Differences in American Athletes Undergoing Preparticipation Examination by Sex, Participation Level, and Age
Objective: To describe the preparticipation examination findings among American athletes by sex, participation level, and age. Design: Hypothesis-generating retrospective cohort study. Setting: Saint-Luke's Athletic Heart Center, Kansas City, Missouri. Participants: A total of 2954 student athletes. Interventions: Athletes underwent preparticipation examination, which included history and physical, electrocardiogram, and 2-D transthoracic echocardiogram. Main Outcome Measures: Differences noted on screening preparticipation examination by sex, participation level, and age. Results:...
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

An Uneven Playing Field: Athlete Injury, Illness, Load, and Daily Training Environment in the Year Before the FINA (Aquatics) World Championships, 2017
Conclusions: Injury prevention strategies should be promoted in aquatic sports, with prospective surveillance for the early identification of physical complaints. The facilitation of access to sport-specific experts could improve athlete's health and performance, especially in countries with low medal ranking. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Reduction of High School Ice Hockey Injuries With Implementation of New Checking/Boarding Rules
Conclusions: Among US high school ice hockey athletes, implementation of stricter penalties for boarding and checking from behind was associated with a significant decrease in injury rate due to being checked. Rates of injury due to other mechanisms were not significantly altered, suggesting the rule changes achieved their targeted effect. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Do Mountain Bikers Know When They Have Had a Concussion and, Do They Know to Stop Riding?
Conclusions: The yearly prevalence of diagnosed concussions in mountain bikers is 6.9%. More than one-third of mountain bikers do not recognize when they have had a concussion and continue riding after experiencing concussion symptoms or with a broken helmet. These behaviors increase their risk of worsening concussion symptoms and acquiring a second injury. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Evaluating Adherence to Return to School and Activity Protocols in Children After Concussion
Conclusions: Children's knowledge of protocols and total PCSS scores significantly predicted adherence to RTS/RTA and may be the most important factors in predicting adherence during recovery from concussion. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Baseline SCAT Performance in Men and Women: Comparison of Baseline Concussion Screens Between 6288 Elite Men's and 764 Women's Rugby Players
Conclusions: Women and men perform differently during SCAT baseline testing, although differences are small and do not affect either the baseline or clinical reference limits that identify abnormal test results for most submodes. The greater endorsement of symptoms by women suggests increased risk of adverse concussion outcomes and highlights the importance of accurate evaluation of any symptom endorsement at baseline. (Source: Clinical Journal of Sport Medicine)
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Single-Task and Dual-Task Tandem Gait Performance Across Clinical Concussion Milestones in Collegiate Student-Athletes
Objective: To determine the length of time after concussion that impaired tandem gait performance is observed. Design: Clinical measurement, prospective longitudinal. Setting: NCAA collegiate athletic facility. Participants: Eighty-eight concussed NCAA Division I student-athletes and 30 healthy controls. Independent Variables: Group (concussion/control) and time (Baseline, Acute, Asymptomatic, and RTP). Main Outcome Measures: Participants completed 4 single-task and dual-task tandem gait trials. The concussion group completed tests at the following time points: preseason (Baseline), w...
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research

Hip and Knee Weakness and Ankle Dorsiflexion Restriction in Individuals Following Lateral Patellar Dislocation: A Case-Control Study
Objective: To explore the relationship between ankle dorsiflexion range of motion (ROM) and hip and knee muscle strength between patients with a history of patellar dislocation (PD) to healthy controls. Design: Case–control study. Setting: Orthopedical specialty outpatient clinic at a tertiary hospital. Participants: Eighty-eight individuals were recruited; 44 individuals aged 16 years or older, of both sexes, with a history of at least one episode of atraumatic unilateral or bilateral PD requiring emergency care (14 men; 30 women; mean age 20 years) and 44 healthy (control) individuals (11 m...
Source: Clinical Journal of Sport Medicine - November 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research