Under-researched populations and topics in sport and exercise medicine (SEM)

Correspondence to Dr Sharief Hendricks, Division of Physiological Sciences and Health through Physical Activity, Lifetsyle and Sport Research Centre, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, Western Cape 7725, South Africa;sharief.hendricks01@gmail.com In this South African Sports Medicine Association (SASMA) edition of BJSM, we spotlight work on under-researched populations and topics in sport and exercise medicine (SEM). Youth sport, TGNC athletes and mental health Access to athlete mental health care, like physical care, can be considered a resource that allows athletes to function, cope with stress, perform and achieve their goals. In 2019, the IOC established the Mental Health Working Group to develop an assessment battery for the early identification of mental health symptoms and disorders in elite athletes.3 The internal consistency of the mental health assessment battery has been tested in elite athletes, but can the same internal consistency be shown for student athletes?

Epidemiological analysis of concussions in youth ice hockey players: A national emergency department database study.

PURPOSE: To evaluate the epidemiology of concussions in youth ice hockey players. METHODS: The National Electronic Injury Surveillance System (NEISS) database was used to gather data. Concussions occurring during ice hockey participation in youth patients (4-21 years old) from 2012 to 2021 was gathered. Concussion mechanisms were grouped into 7 categories: head-to-player, head-to-puck, head-to-ice, head-to-board/glass, head-to-stick, head-to-goal post, and unknown. Hospitalization rates were also tabulated. Linear regression models were used to assess changes in yearly concussion and hospitalization rates over the study period. Results from these models were reported using parameter estimates [with 95% confidence intervals (CI)] and the estimated Pearson correlation coefficient. Additionally, logistic regression was used to model the risk of hospitalization across the different cause categories. RESULTS: A total of 819 ice hockey related concussions were analyzed between 2012 and 2021. The average age of our cohort was 13.4 years, with 89.3% (n = 731) of concussions occurring in males. The incidence of head-to-ice, head-to-board/glass, head-to-player, and head-to-puck concussion mechanisms decreased significantly over the study period (slope estimate = -2.1 concussions/year [CI: (-3.9, -0.2)], r = -0.675, p = 0.032), (slope estimate = -2.7 concussions/year [CI: (-4.3, -1.2)], r = -0.816, p = 0.004), (slope estimate = -2.2 concussions/year [CI: (-3.4, -1.0)], r = -0.832, p = 0.003), and (slope estimate = -0.4 concussions/year [CI: (-0.62, -0.09)], r = -0.768, p = 0.016), respectively. Majority of patients were discharged from the emergency department (ED) to their home, as only 20 people (2.4%) were hospitalized over our study period. The majority of concussions were due to head-to-ice (n = 285, 34.8%), followed by head-to-board/glass (n = 217, 26.5%) and head-to-player (n = 207, 25.3%). The most common cause for hospitalizations due to concussions was head-to-board/glass (n = 7, 35%), followed by head-to-player (n = 6, 30%) and head-to-ice (n = 5, 25%). CONCLUSION: The most common mechanism of youth ice hockey concussions was head-to-ice in our 10-year study period, while head-to-board/glass was the most common cause of hospitalizations. IRB: This project did not require review by the institutional review board.

Influenza A Outbreaks in Two Professional Ice Hockey Teams during COVID-19 Epidemic.

Influenza A outbreaks occurred in two professional hockey teams just after two games they played against each other. Thirteen players and two staff members fell ill during 17-20 April 2022, while COVID-19 was prevalent. Altogether, seven players missed an important game due to influenza. The rapid diagnosis permitted effective pharmaceutical and nonpharmaceutical control of the outbreaks.

QUANTIFYING THE IMPACT OF THE COVID-19 PANDEMIC ON YOUTH SPORTS-RELATED INJURIES

Background: The COVID-19 pandemic has had a tremendous impact on youth sports participation for children and adolescents in the United States. Prior work demonstrated that pandemic-related closures led to a significant reduction in pediatric sports-related injury in the first half of 2020. However, these trends have yet to be evaluated on a national level and during the latter half of the year when organized youth sports began to re-emerge. Purpose: To estimate monthly and annual trends in youth sports-related injury over the last 5 years using a national injury database in order to measure the impact of the COVID-19 pandemic on overall and sport-specific rates of injury. Methods: We retrospectively reviewed data from the National Electronic Injury Surveillance System (NEISS) database identifying children and adolescents (0-18yo) presenting to US emergency departments with sport participation product codes (Table 1). Cases associated with >1 product code were excluded. The monthly and annual frequency of sports-related injuries was estimated. Quasi-experimental interrupted time series analysis was performed using the period of March-December 2020 as a binary variable. Differences in total and sport-specific injury estimates were calculated with pre-and post-trend analysis of the interrupted time series. Results: Our study criteria identified 152,560 youth sports-related injury cases corresponding to a national estimate of 4,582,892 injuries from 2016-2020 (95% CI=4,420,534-4,745,250). The mean yearly estimate from 2016-2019 was 1,041,944 injuries [890,047-1,193,841]. An estimated 415,115 injuries [357,779-480,594] occurred in 2020. Seasonal peaks in September and May were identified. There was a statistically significant decrease in national youth sportsrelated injuries that coincided with the nationwide COVID-19 shutdown in March 2020 (56,945 [33,143-80,747] fewer monthly injuries (P < 0.0001)). From March-December 2020, an estimated 457,221 [388,450-525,992] fewer sportsrelated injuries occurred than would have been expected based on prior trends. Sport-specific analyses (Table 1) demonstrated the greatest reduction of estimated injuries from March-December 2020 occurred in basketball (137,772 fewer injuries [130,192-145,246]), football (123,345 fewer injuries [86,883-159,807]), and soccer (70,383 fewer injuries [65,849-74,919]). Estimates of injuries associated with wrestling, ice hockey, and cheerleading had the greatest proportional reduction during the March-December time period (99%, 93%, and 79% respectively.) Conclusion: There was a significant reduction in youth sports-related injuries in 2020 coinciding with the nationwide COVID-19 shutdowns in March 2020 and persisting throughout the remainder of the year. Reduced injury burden was most notable for contact sports including basketball, football, and soccer.

CASEM 2022

The proceedings contain 42 papers. The topics discussed include: intraosseous infiltration of platelet-rich plasma for severe tarsometatarsal and 5th metatarsophalangeal joint arthritis;baseline vestibulo-ocular motor screen assessment in youth ice hockey players: factors influencing performance;benefits outweigh the risks: a consensus statement on the risks of physical activity for people living with long-term conditions;higher rates of head contacts and injuries in female ringette compared to ice hockey: an opportunity for prevention;national experiences among sport and exercise medicine residents trained during the COVID-19 pandemic;direct impact bone injuries of the midfoot and ankle in professional ice hockey players: epidemiologic findings and return to play;the effects of attentional focus and dual-tasking on conventional deadlift performance in experienced lifters;surgical outcomes for long head of the biceps surgery: an updated chart review;assessing family resident confidence and competency in ordering appropriate diagnostic imaging for knee pain in primary care;and age and pacing strategies differences between younger and older Canadian competitive cross-country skiers.

Post-recession decision-making associated with adding NCAA division I sports programs

Recent college sport headlines highlight the decision to cut teams during the COVID-19 pandemic. Yet, a number of institutions are charging forward and have announced the addition of a team(s) to their athletic offerings. Plymouth State will add men's swimming, Indiana Tech is adding women's ice hockey, and Augustana College just added men and women's water polo. Such additions are somewhat surprising given the difficult economic climate currently facing higher education and intercollegiate athletics. This study sought to identify a structure that NCAA Division I decision-makers took part in when adding a team in previous years. Accordingly, the authors conducted expert-based, in-depth, semi-structured interviews with 15 Division I athletic administrators representing 23 sport teams. The following decision-making phases were identified: Identification, Justification, Evaluation, Acceptance (or Interruptions), and Authorization. Theoretical and practical implications for institutions seeking to grow their sport offerings are provided.

No sports, no spectators - no media, no money? The importance of spectators and broadcasting for professional sports during COVID-19. (Special Issue: COVID-19 and the soccer world: early impressions and initial responses.)

In 2020, the COVID-19 pandemic is giving sports a timeout. Due to the risk of infection, in Germany no sports events with live spectators were allowed for weeks starting on March 13. The question arises, what would be the impact on spectators and with that on live broadcasting for different sports? While professional sport leagues like handball and hockey (ice hockey) stopped, the football (soccer) league restarted games without spectators on May 16. Using two approaches of sports action as a public presentation of performance and the consumption capital theory, the share of revenues like media, spectators, sponsoring of the biggest sport leagues in Germany is compared. Following this up, the economic impact of COVID-19 on professional sports in Germany is explained. As a result games without spectators ('ghost games'), the gap between major sports and minor sports seems to be becoming larger.

Facemasks Block Lower Visual Field in Youth Ice Hockey.

Wearing a facemask (FM) reduces the spread of COVID-19, but it also blocks a person's lower visual field. Many new public safety rules were created in response to COVID-19, including mandated FM wearing in some youth sports like youth ice hockey. We hypothesized that FM wearing in youth hockey players obstructs the lower field of view and may impact safety. Youth hockey players (n = 33) aged 12.03 (1.6) years button press when they saw an LED on the floor turn on in two conditions (wearing FM or no FM) in random order. An interleaved one-up/one-down two-alternative-forced-choice adaptive staircase design was used. Visual thresholds were calculated for each condition and participant. The visual angle threshold (VAT) was determined using standing eye height and the linear distance from the tip of the skates to the visual threshold. Paired t-tests determined whether mask wearing changed the VAT. We modeled the probability a player could see the puck on their stick in four distinct scenarios to estimate the potential impact of FM wearing during hockey play. The average unmasked VAT (11.4 degrees) was significantly closer to the skates than the masked VAT (20.3 degrees) (p < 0.001). Our model indicated a significant reduction in ability to visualize the puck using peripheral vision when more upright while wearing a FM. FM wearing compromised their lower visual field, suggesting a downward head tilt may be necessary to see the puck. Playing ice hockey while wearing a FM may lead to unsafe on-ice playing conditions due to downward head tilt to see the puck.

Cardiopulmonary examinations of athletes returning to high-intensity sport activity following SARS-CoV-2 infection

During the pandemic, several studies were carried out on the short-term effects of acute SARS-CoV-2 infection in athletes. As some cases of young athletes with serious complications like myocarditis or thromboembolism and even sudden death were reported, strict recommendations for return to sport were published. However, we have less data about athletes who have already returned to high-intensity trainings after a SARS-CoV-2 infection. Athletes underwent cardiology screening (personal history, physical examination, 12-lead resting ECG, laboratory tests with necroenzyme levels and echocardiography) 2 to 3 weeks after suffering a SARS-CoV-2 infection. In case of negative results, they were advised to start low intensity trainings and increase training intensity regularly until achieving maximal intensity a minimum of 3 weeks later. A second step of cardiology screening was also carried out after returning to maximal intensity trainings. The above mentioned screening protocol was repeated and was completed with vita maxima cardiopulmonary exercise testing (CPET) on running treadmill. If the previous examinations indicated, 24h Holter ECG recording, 24h ambulatory blood pressure monitoring or cardiac MR imaging were also carried out. Data are presented as mean±SD. Two-step screening after SARS-CoV-2 infection was carried out in 111 athletes (male:74, age:22.4±7.4y, elite athlete:90%, training hours:14.8±5.8 h/w, ice hockey players:31.5%, water polo players:22.5%, wrestlers:18.9%, basketball players:18.0%). Second screenings were carried out 94.5±31.5 days after the first symptoms of the infection. A 5% of the athletes was still complaining of tiredness and decreased exercise capacity. Resting heart rate was 70.3±13.0 b.p.m., During CPET examinations, athletes achieved a maximal heart rate of 187.3±11.6 b.p.m., maximal relative aerobic capacity of 49.2±5.5 ml/kg/min, and maximal ventilation of 138.6±31.2 l/min. The athletes reached their anaerobic threshold at 87.8±6.3% of their maximal aerobic capacity, with a heart rate of 93.3±3.7% of their maximal values. Heart rate recovery was 29.9±9.2/min. During the CPET examinations, short supraventricular runs, repetititve ventricular premature beats + ventricular quadrigeminy and inferior ST depression were found in 1-1 cases. Slightly higher pulmonary pressure was measured on the echocardiography in 4 cases. Hypertension requiring drug treatment was found in 5.4% of the cases. Laboratory examinations revealed decreased vitamin D3 levels in 26 cases, decreased iron storage levels in 18 athletes. No SARS-CoV-2 infection related CMR changes were revealed in our athlete population. Three months after SARS-CoV-2 infection, most of the athletes examined had satisfactory fitness levels. However, some cases of decreased exercise capacity, decreased vitamin D3 or iron storage levels, arrhythmias, hypertension and elevated pulmonary pressure requiring further examinations, treatment or follow-up were revealed.

Youth ice hockey COVID-19 protocols and prevention of sport-related transmission.

OBJECTIVES: This observational study evaluated the impact of return-to-play protocols to prevent transmission of SARS-CoV-2 in a youth ice hockey programme in Virginia Beach, Virginia. METHODS: Following an outbreak of SARS-CoV-2 in November 2020, a COVID-19 Response Team evaluated the epidemiological data to identify transmission dynamics and develop enhanced protocols to prevent transmission. During the subsequent 18-week study period, incident cases were investigated to identify the likely transmission source; testing, quarantine and isolation recommendations were provided to families in accordance with Centers for Disease Control and Prevention guidelines. RESULTS: Simple but stringent protocols were implemented among 148 youth ice hockey players ages 6-18. Players were required to arrive at the rink in full gear; locker rooms were closed, building entry was limited to one parent per player, and masks were required at all times except for players on the ice. Following implementation of the enhanced protocols, more than 500 practices and games were completed with at least 15 858 athlete-hours of exposure and no within-programme COVID-19 transmission was detected despite high community incidence and sporadic household exposures. CONCLUSION: This study suggests indoor youth sports can operate safely with appropriate protocols in place, even within communities of high COVID-19 transmission, even when athletes are not yet vaccinated or wearing masks during play. Transmission appears to be more likely in congested indoor areas involving adults than on the ice during play. Protocols should be developed in collaboration with programme participants. Strong collaboration in the interest of youth sports can motivate adoption of protocols which prevent within-team transmission.

Team-to-team transmission of COVID-19 in ice hockey games - a case series of players in Finnish ice hockey leagues.

BACKGROUND: The COVID-19 pandemic suspended nearly all team sports globally. The pro series have resumed playing by creating safe bubbles or massive testing protocols. Amateur level sports have also restarted seasons without possibility for such precautions. Our aim was to report the epidemiology of COVID-19 in an amateur ice hockey team and the team-to-team transmission during two games. METHODS: A descriptive brief report based on public statements by the local health authorities and the teams involved. RESULTS: An asymptomatic carrier of COVID-19 in a U-20 ice hockey team infected 22 of 28 team mates. The day before the first players had symptoms, the team had returned from a two games away trip. A few days later COVID-19 was detected in both opposing teams and they were ordered to quarantine. During the two weeks quarantine a total of 24 players from the two opposing teams tested positive. Some of these players were training with senior teams and three additional infected players were detected in two senior teams. In total, 49 infections were detected in five ice hockey teams, and six teams were in quarantine for two weeks. CONCLUSION: An asymptomatic player can potentially endanger the whole season of a team and put opponents in danger as well. We report massive team-to-team transmission of COVID-19 in the U-20 Finnish National Hockey League. In order to prevent spread of COVID-19 in amateur-level team sports, suitable protocols should be established and adopted into daily use.