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  1. Article ; Online: Use of Publicly Obtained Data in Sports Medicine Research: A Systematic Review and Bibliometric Analysis.

    Inclan, Paul M / Kuhn, Andrew W / Troyer, Stockton C / Solomon, Gary S / Matava, Matthew J

    The American journal of sports medicine

    2023  Volume 52, Issue 5, Page(s) 1367–1373

    Abstract: Background: Publicly obtained data (POD) have recently been utilized frequently by sports medicine researchers to describe injury patterns, risk factors, and outcomes in elite athletes. The relative ease of this type of research that is based solely on ... ...

    Abstract Background: Publicly obtained data (POD) have recently been utilized frequently by sports medicine researchers to describe injury patterns, risk factors, and outcomes in elite athletes. The relative ease of this type of research that is based solely on internet and media sources has resulted in a near exponential increase in the number of these POD studies.
    Purpose: To systematically review the sports medicine literature for studies based solely on POD.
    Study design: Systematic review and bibliometric analysis; Level of evidence, 4.
    Methods: A systematic review of POD studies published since 2000 was conducted in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Studies of interest were those relying on publicly available injury reports or online media for data acquisition in collegiate, semiprofessional, and professional athletes.
    Results: There were 209 POD studies published between 2000 and 2022, with 173 (82.8%) of these studies published after 2016. Studies were published most frequently on athletes participating in North American professional leagues: National Football League (n = 69 [28.4%]), Major League Baseball (n = 56 [23.0%]), National Basketball Association (n = 37 [15.2%]), and National Hockey League (n = 33 [13.6%]). The most common injuries assessed were head injuries/concussions (n = 43 [21.1%]), anterior cruciate ligament injuries (n = 33 [16.2%]), and ulnar collateral ligament injuries (n = 23 [11.3%]). One-quarter of the studies (n = 53 [25.4%]) reported only 1 POD source, and 1 study (0.5%) reported no source. Additionally, 65 studies (31.1%) listed nonspecific POD resources or solely cited previous literature to describe the POD search methodology and data acquisition.
    Conclusion: POD studies are exponentially increasing in number, particularly across major North American professional sports leagues, with significant variability in the injury of interest, search methodology, and number of data sources. The accuracy of the conclusions reached based on the POD methodology appears highly variable. Given the potential impact of these publications as both contributors to current knowledge and drivers of future research, the sports medicine community should be aware of the inherent biases and limitations of POD injury studies.
    MeSH term(s) Humans ; Athletic Injuries/etiology ; Sports Medicine ; Brain Concussion/complications ; Football/injuries ; Bibliometrics
    Language English
    Publishing date 2023-06-12
    Publishing country United States
    Document type Systematic Review ; Journal Article
    ZDB-ID 197482-8
    ISSN 1552-3365 ; 0363-5465
    ISSN (online) 1552-3365
    ISSN 0363-5465
    DOI 10.1177/03635465231177054
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Comparison of Neurocognitive Performance in Contact and Noncontact Nonconcussed High School Athletes Across a Two-Year Interval.

    Brett, Benjamin L / Solomon, Gary S

    Developmental neuropsychology

    2017  Volume 42, Issue 2, Page(s) 70–82

    Abstract: Investigating short-term effects of subconcussive impacts on neurocognitive functioning, we employed a repeated measures multivariate model and regression-based measure to examine neurocognitive changes in 771 contact and noncontact high school athletes ... ...

    Abstract Investigating short-term effects of subconcussive impacts on neurocognitive functioning, we employed a repeated measures multivariate model and regression-based measure to examine neurocognitive changes in 771 contact and noncontact high school athletes over a two-year period. Results reveal significant changes in Visual Motor Speed for both groups over a two-year period, with small effect sizes. According to regression-based measures, differences in contact sport athletes' expected Time 2 performances were significant for Visual Motor Speed, also with minimal effects. Results do not conclusively implicate subconcussive hits as the offending factor in differences observed, with gender and sport-type possibly contributing to the small effects.
    Language English
    Publishing date 2017
    Publishing country England
    Document type Journal Article
    ZDB-ID 632665-1
    ISSN 1532-6942 ; 8756-5641
    ISSN (online) 1532-6942
    ISSN 8756-5641
    DOI 10.1080/87565641.2016.1243114
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The influence of validity criteria on Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) test-retest reliability among high school athletes.

    Brett, Benjamin L / Solomon, Gary S

    Journal of clinical and experimental neuropsychology

    2017  Volume 39, Issue 3, Page(s) 286–295

    Abstract: Objective: Research findings to date on the stability of Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) Composite scores have been inconsistent, requiring further investigation. The use of test validity criteria across these studies ...

    Abstract Objective: Research findings to date on the stability of Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) Composite scores have been inconsistent, requiring further investigation. The use of test validity criteria across these studies also has been inconsistent. Using multiple measures of stability, we examined test-retest reliability of repeated ImPACT baseline assessments in high school athletes across various validity criteria reported in previous studies.
    Method: A total of 1146 high school athletes completed baseline cognitive testing using the online ImPACT test battery at two time periods of approximately two-year intervals. No participant sustained a concussion between assessments. Five forms of validity criteria used in previous test-retest studies were applied to the data, and differences in reliability were compared.
    Results: Intraclass correlation coefficients (ICCs) ranged in composite scores from .47 (95% confidence interval, CI [.38, .54]) to .83 (95% CI [.81, .85]) and showed little change across a two-year interval for all five sets of validity criteria. Regression based methods (RBMs) examining the test-retest stability demonstrated a lack of significant change in composite scores across the two-year interval for all forms of validity criteria, with no cases falling outside the expected range of 90% confidence intervals.
    Conclusion: The application of more stringent validity criteria does not alter test-retest reliability, nor does it account for some of the variation observed across previously performed studies. As such, use of the ImPACT manual validity criteria should be utilized in the determination of test validity and in the individualized approach to concussion management. Potential future efforts to improve test-retest reliability are discussed.
    Language English
    Publishing date 2017-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 605982-x
    ISSN 1744-411X ; 0168-8634 ; 1380-3395
    ISSN (online) 1744-411X
    ISSN 0168-8634 ; 1380-3395
    DOI 10.1080/13803395.2016.1224322
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Validity of Research Based on Publicly Obtained Data in Sports Medicine: A Quantitative Assessment of Concussions in the National Football League.

    Inclan, Paul M / Kuhn, Andrew W / Chang, Peter S / Mack, Christina / Solomon, Gary S / Sills, Allen K / Matava, Matthew J

    Sports health

    2023  Volume 15, Issue 4, Page(s) 527–536

    Abstract: Context: Numerous researchers have leveraged publicly available internet sources to publish clinical research concerning incidence and recovery from injuries in National Football League (NFL) players.: Objective: This study aims to (1) provide a ... ...

    Abstract Context: Numerous researchers have leveraged publicly available internet sources to publish clinical research concerning incidence and recovery from injuries in National Football League (NFL) players.
    Objective: This study aims to (1) provide a comprehensive systematic review of all publicly obtained data studies (PODS) regarding concussions in NFL athletes and (2) quantify the percentage of injuries identified by these studies in comparison with published concussion data from the NFL injury database.
    Study selection: A systematic review was conducted in accordance with PRISMA guidelines to identify all published studies utilizing publicly obtained data regarding concussions in NFL athletes.
    Study design: Systematic review.
    Level of evidence: Level 4.
    Data extraction: Manuscript details, factors related to the athletes of interest (eg, study period, positions included), and results (eg, concussion rate, number of total concussions, return-to-play data) were extracted independently by 2 authors. Results were compared with incident concussions reported from 2015 to 2019 by each medical staff member to the NFL database linked to the League's electronic health record (EHR).
    Results: A total of 20 concussion-focused manuscripts based on PODS were identified from 2014 to 2020. PODS captured between 20% and 90% of concussions (mean, 70%) reported by medical staff to the injury database. PODS reported that 55% of concussions occurred on offensive plays, 45% on defensive plays and <1% occurred during special teams plays, compared with 44%, 37%, and 18%, respectively, as indicated by published data from the NFL injury database. When analyzed by position groups, running backs and quarterbacks comprised the most over-represented positions concussed in PODS, while offensive linemen, defensive backs, and linebackers comprised the most under-represented positions.
    Conclusion: PODS captured approximately 70% of concussions reported by NFL medical staff to the NFL injury database. There is heterogeneity in the degree to which PODS were able to identify concussions, with a bias toward concussions among players at higher profile positions.
    MeSH term(s) Humans ; Brain Concussion/epidemiology ; Football/injuries ; Running ; Sports Medicine
    Language English
    Publishing date 2023-04-08
    Publishing country United States
    Document type Journal Article ; Systematic Review
    ZDB-ID 2508802-6
    ISSN 1941-0921 ; 1941-7381
    ISSN (online) 1941-0921
    ISSN 1941-7381
    DOI 10.1177/19417381231167333
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Book: The heads up on sport concussion

    Solomon, Gary S. / Johnston, Karen M. / Lovell, Mark R.

    2006  

    Title variant The heads-up on sport concussion
    Author's details Gary S. Solomon ; Karen M. Johnston ; Mark R. Lovell
    Keywords Brain Concussion / physiopathology ; Brain Concussion / therapy ; Athletic Injuries / physiopathology ; Athletic Injuries / therapy
    Language English
    Size XI, 139 S. : Ill.
    Publisher Human Kinetics
    Publishing place Champaign, Ill
    Publishing country United States
    Document type Book
    HBZ-ID HT014535229
    ISBN 0-7360-6008-1 ; 978-0-7360-6008-0
    Database Catalogue ZB MED Medicine, Health

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  6. Article ; Online: Epidemiology of Stingers in the National Football League, 2015-2019.

    Lamplot, Joseph D / Petit, Camryn / Lee, Rebecca / Mack, Christina D / Herzog, Mackenzie M / Solomon, Gary S / Diekfuss, Jed A / Myer, Greg D / Hammond, Kyle

    Sports health

    2024  , Page(s) 19417381231223413

    Abstract: Background: Transient traumatic neuropraxia of either the brachial plexus or cervical nerve root(s) is commonly described as a "stinger" or "burner" by the athlete. Stingers in American Football commonly occur acutely as isolated injuries; however, ... ...

    Abstract Background: Transient traumatic neuropraxia of either the brachial plexus or cervical nerve root(s) is commonly described as a "stinger" or "burner" by the athlete. Stingers in American Football commonly occur acutely as isolated injuries; however, concomitant injuries, including cervical spine pathologies, have also been reported.
    Hypothesis: Among National Football League (NFL) athletes, the incidence rate of stingers is higher during the regular season than during the preseason and among positions with high velocity impacts such as running backs, linebackers, defensive backs, and receivers.
    Study design: Retrospective epidemiology study.
    Level of evidence: Level 4.
    Methods: Aggregation of all in-game injuries with a clinical impression of "neck brachial plexus stretch" or "neck brachial plexus compression" entered into the NFL injury surveillance database through the centralized league-wide electronic medical record system over 5 years (2015-2019 seasons). Incidence rates per player-play were calculated and reported.
    Results: A total of 691 in-game stingers occurred during the study period, with a mean of 138.2 per year. Average single-season injury risk for incident stinger was 3.74% (95% CI, 3.46%-4.05%). The incidence rate was higher during regular season games than during preseason games (12.26 per 100,000 player-plays [11.30-13.31] vs 8.87 [7.31-10.76],
    Conclusion: In-game stinger incidence was stable across the study period and occurred most frequently in running backs and linebackers. Stingers were more common during the regular season, and most players did not miss time. Concomitant injuries were relatively rare.
    Clinical relevance: An improved understanding of the expected time loss due to stinger and concomitant injuries may provide insight for medical personnel in managing these injuries.
    Language English
    Publishing date 2024-01-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2508802-6
    ISSN 1941-0921 ; 1941-7381
    ISSN (online) 1941-0921
    ISSN 1941-7381
    DOI 10.1177/19417381231223413
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Same-Year Repeat Concussions in the National Football League: Trends from 2015 Through 2019.

    Cools, Michael / Zuckerman, Scott L / Herzog, Mackenzie / Mack, Christina / Lee, Rebecca Y / Solomon, Gary S / Sills, Allen K

    World neurosurgery

    2022  Volume 161, Page(s) e441–e447

    Abstract: Background: Sport-related concussion (SRC) prevention and management is a focus of the National Football League (NFL). While most prior reports evaluated sport-related concussion incidence, few have studied same-year repeat concussions. This study aimed ...

    Abstract Background: Sport-related concussion (SRC) prevention and management is a focus of the National Football League (NFL). While most prior reports evaluated sport-related concussion incidence, few have studied same-year repeat concussions. This study aimed to evaluate the frequency of same-year repeat concussions in the NFL.
    Methods: A retrospective, observational cohort study of same-year repeat concussions in the NFL from 2015 to 2019 was performed. The NFL's electronic health record was reviewed for players sustaining concussions and same-year repeat concussions. Wilcoxon rank sum tests were used to calculate same-year repeat concussion rates, and risk ratios and 95% confidence intervals were estimated using log-binomial regression.
    Results: From 2015 to 2019, the risk of sustaining a same-year repeat concussion in the NFL was 0.38%-0.69% per season. Among players who sustained a concussion, the risk of a same-year repeat concussion was 5.3%-8.3%, which did not differ significantly from the risk of sustaining a single concussion (6.2%-8.3%). There was a median of 38 participation days between initial and same-year repeat concussion. Players missed more time from same-year repeat concussions (median 12 days) compared with both single (median 9 days; P < 0.0001) and initial (median 9.5 days; P = 0.002) concussions.
    Conclusions: The risk of a repeat concussion was similar to the risk of sustaining a single concussion among NFL players. More time was missed following a same-year repeat concussion compared with single or initial concussions. Further research is needed to maximize player safety and minimize same-year repeat concussions.
    MeSH term(s) Brain Concussion/epidemiology ; Electronic Health Records ; Football ; Humans ; Retrospective Studies ; Soccer
    Language English
    Publishing date 2022-02-14
    Publishing country United States
    Document type Journal Article ; Observational Study
    ZDB-ID 2534351-8
    ISSN 1878-8769 ; 1878-8750
    ISSN (online) 1878-8769
    ISSN 1878-8750
    DOI 10.1016/j.wneu.2022.02.033
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Talking with parents of high school football players about chronic traumatic encephalopathy: a concise summary.

    Love, Shawn / Solomon, Gary S

    The American journal of sports medicine

    2015  Volume 43, Issue 5, Page(s) 1260–1264

    Abstract: Over the past decade, athletic-related chronic traumatic encephalopathy (CTE) has garnered a great deal of attention in the popular press and, more recently, in the scientific press. With increasing frequency, sports medicine practitioners and providers ... ...

    Abstract Over the past decade, athletic-related chronic traumatic encephalopathy (CTE) has garnered a great deal of attention in the popular press and, more recently, in the scientific press. With increasing frequency, sports medicine practitioners and providers are faced with questions from the parents of high school football players about CTE and the risk posed to children who participate in this or other contact or collision sports. The purpose of this review was to summarize the research on CTE in an attempt to provide some evidence-based answers to frequently asked questions in clinics from parents. Addressed are (1) the definitions of CTE and its symptoms, (2) the evidence for CTE in football, (3) abnormal tau protein, (4) the use of neuroimaging in CTE diagnosis, (5) risk for CTE, (6) CTE diagnosis in youth, (7) CTE and its relationship to suicide, and (8) contact and collision sports as a risk factor for permanent brain injury or death.
    MeSH term(s) Adolescent ; Brain Injury, Chronic/epidemiology ; Brain Injury, Chronic/etiology ; Football/injuries ; Humans ; Parents ; Risk Factors ; Schools ; Sports Medicine
    Language English
    Publishing date 2015-05
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 197482-8
    ISSN 1552-3365 ; 0363-5465
    ISSN (online) 1552-3365
    ISSN 0363-5465
    DOI 10.1177/0363546514535187
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Chronic traumatic encephalopathy in professional sports: retrospective and prospective views.

    Solomon, Gary S / Zuckerman, Scott L

    Brain injury

    2015  Volume 29, Issue 2, Page(s) 164–170

    Abstract: Primary objective: The purposes of this paper are to review: (1) the history of chronic traumatic encephalopathy (CTE) in sports, (2) the similarities and differences between historic and current definitions of CTE, (3) recent epidemiology and cohort ... ...

    Abstract Primary objective: The purposes of this paper are to review: (1) the history of chronic traumatic encephalopathy (CTE) in sports, (2) the similarities and differences between historic and current definitions of CTE, (3) recent epidemiology and cohort studies of CTE and (4) controversies regarding the current CTE positions.
    Research design: Not applicable.
    Methods and procedures: Selective review of published articles relevant to CTE.
    Main outcome and results: The current definitions of CTE have evolved from its original definition and now rely heavily on the post-mortem detection of hyperphosphorylated tau for diagnosis. As of 2013, there is a blended cohort of 110 professional athletes diagnosed with CTE. It is being assumed that concussions and/or sub-concussive impacts in contact sports are the sole cause of CTE.
    Conclusions: There are multiple causes of abnormal tau protein deposition in the human brain and the pathogenesis of CTE may not be related solely to concussion and/or sub-concussive injury. In all likelihood, the causes of CTE are a multivariate, as opposed to a univariate, phenomenon.
    MeSH term(s) Age Factors ; Athletes/history ; Athletes/statistics & numerical data ; Athletic Injuries/epidemiology ; Athletic Injuries/history ; Athletic Injuries/metabolism ; Athletic Injuries/physiopathology ; Brain Injury, Chronic/epidemiology ; Brain Injury, Chronic/history ; Brain Injury, Chronic/metabolism ; Brain Injury, Chronic/physiopathology ; Disease Progression ; History, 20th Century ; History, 21st Century ; Humans ; Neurodegenerative Diseases/epidemiology ; Neurodegenerative Diseases/history ; Neurodegenerative Diseases/physiopathology ; Neuroimaging ; Prognosis ; Prospective Studies ; Retrospective Studies ; tau Proteins/metabolism
    Chemical Substances tau Proteins
    Language English
    Publishing date 2015
    Publishing country England
    Document type Historical Article ; Journal Article ; Review
    ZDB-ID 639115-1
    ISSN 1362-301X ; 0269-9052
    ISSN (online) 1362-301X
    ISSN 0269-9052
    DOI 10.3109/02699052.2014.965205
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Concussion in the National Hockey League: a systematic review of the literature.

    Kuhn, Andrew W / Solomon, Gary S

    Concussion (London, England)

    2015  Volume 1, Issue 1, Page(s) CNC1

    Abstract: Players in the National Hockey League (NHL) are often sidelined by injuries, including concussion. The acute, intermediate and long-term effects of repetitive head trauma remain a concern of many. In 1997, the NHL and NHL Players Association established ... ...

    Abstract Players in the National Hockey League (NHL) are often sidelined by injuries, including concussion. The acute, intermediate and long-term effects of repetitive head trauma remain a concern of many. In 1997, the NHL and NHL Players Association established the NHL-NHL Players Association Concussion Program to diagnose, assess and treat concussion via a standardized and scientific approach. Documenting and analyzing the trends, incidence and underlying mechanisms of concussion may help in devising future prevention and treatment plans for concussion in hockey in general and the NHL in particular. The purpose of this study, therefore, was to systematically review and summarize the existing published literature on the trends, incidence rates and underlying mechanisms of concussion in the NHL.
    Language English
    Publishing date 2015-08-06
    Publishing country England
    Document type Journal Article ; Review
    ISSN 2056-3299
    ISSN (online) 2056-3299
    DOI 10.2217/cnc.15.1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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