Calvin E. Hwang
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View article: Validity of the King Devick Test for Acute Diagnosis of Concussion in NCAA Division I Athletes
Validity of the King Devick Test for Acute Diagnosis of Concussion in NCAA Division I Athletes Open
Background: The King-Devick (KD) test is a timed rapid number naming test used for the acute diagnosis of concussion. Hypothesis: The KD test will be more sensitive, but less specific, than other commonly used objective tests for concussio…
View article: Liver Function Test Results Correlate With Spleen Size in Patients With Infectious Mononucleosis
Liver Function Test Results Correlate With Spleen Size in Patients With Infectious Mononucleosis Open
Liver function testing may be useful in the return-to-play decision-making process for athletes with IM.
View article: Diagnosis of Sports-Related Concussion Using Symptom Report or Standardized Assessment of Concussion
Diagnosis of Sports-Related Concussion Using Symptom Report or Standardized Assessment of Concussion Open
Importance The Sports Concussion Assessment Tool-5 (SCAT5) has been recommended for concussion evaluation and utilizes both a subjective reported symptom grading scale and objective measures of concussion including a cognitive evaluation: …
View article: Training Background and Demographic Characteristics of Primary Care Team Physicians in Professional Sports
Training Background and Demographic Characteristics of Primary Care Team Physicians in Professional Sports Open
Background: Previous studies have shown that most professional head and orthopaedic team physicians are men, and most orthopaedic team physicians are fellowship-trained. It is unknown whether this holds true for primary care team physician…
View article: The Stanford Legacy and the Future of Electrocardiographic Screening of Athletes
The Stanford Legacy and the Future of Electrocardiographic Screening of Athletes Open
Though some controversy remains regarding the place of the 12 lead Electrocardiogram (ECG) in the routine screening of young athletes and how and where the pre-participation examination should be performed, studies continue to support the …
View article: The Stanford Legacy and the Future of Electrocardiographic Screening of Athletes
The Stanford Legacy and the Future of Electrocardiographic Screening of Athletes Open
Though some controversy remains regarding the place of the 12 lead Electrocardiogram (ECG) in the routine screening of young athletes and how and where the pre-participation examination should be performed, studies continue to support the …
View article: Prevalence of Positive Rapid Antigen Tests After 7-Day Isolation Following SARS-CoV-2 Infection in College Athletes During Omicron Variant Predominance
Prevalence of Positive Rapid Antigen Tests After 7-Day Isolation Following SARS-CoV-2 Infection in College Athletes During Omicron Variant Predominance Open
Importance The US Centers for Disease Control and Prevention shortened the recommended isolation period for SARS-CoV-2 infection from 10 days to 5 days in December 2021. It is unknown whether an individual with the infection may still have…
View article: Critical Care Clinicians’ Experiences of Patient Safety During the COVID-19 Pandemic
Critical Care Clinicians’ Experiences of Patient Safety During the COVID-19 Pandemic Open
Objective It is unknown how hospital- and systems-level factors have impacted patient safety in the intensive care unit (ICU) during the COVID-19 pandemic. We sought to understand how the pandemic has exacerbated preexisting patient safety…
View article: Increased Risk of ACL Injury for Female but Not Male Soccer Players on Artificial Turf Versus Natural Grass: A Systematic Review and Meta-Analysis
Increased Risk of ACL Injury for Female but Not Male Soccer Players on Artificial Turf Versus Natural Grass: A Systematic Review and Meta-Analysis Open
Background: Both natural grass (NG) and artificial turf (AT) are popular playing surfaces for soccer. Biomechanical studies have found increased frictional forces on AT that may lead to anterior cruciate ligament (ACL) injury. The increase…
View article: Wastewater-Based Detection of Two Influenza Outbreaks
Wastewater-Based Detection of Two Influenza Outbreaks Open
Traditional influenza surveillance informs control strategies but can lag behind outbreak onset and undercount cases. Wastewater surveillance is effective for monitoring near real-time dynamics of outbreaks but has not been attempted for i…
View article: Poster 250: Increased Risk of Anterior Cruciate Ligament Injuries for Female but Not Male Soccer Players on Artificial Turf Versus Natural Grass: A Systematic Review and Meta-Analysis
Poster 250: Increased Risk of Anterior Cruciate Ligament Injuries for Female but Not Male Soccer Players on Artificial Turf Versus Natural Grass: A Systematic Review and Meta-Analysis Open
Objectives: Both natural grass (NG) and artificial turf (AT) are popular playing surfaces for soccer. Biomechanical studies have found increased frictional forces on artificial turf that may lead to anterior cruciate ligament (ACL) injury.…
View article: Accuracy of Rapid Antigen vs Reverse Transcriptase–Polymerase Chain Reaction Testing for SARS-CoV-2 Infection in College Athletes During Prevalence of the Omicron Variant
Accuracy of Rapid Antigen vs Reverse Transcriptase–Polymerase Chain Reaction Testing for SARS-CoV-2 Infection in College Athletes During Prevalence of the Omicron Variant Open
This case series evaluates the performance of rapid antigen tests in detecting SARS-CoV-2 infection in college athletes during prevalence of a dominant Omicron variant.
View article: Paper 22: Increased Lower Extremity Injury Associated with Player Load and Distance in Collegiate Women’s Soccer
Paper 22: Increased Lower Extremity Injury Associated with Player Load and Distance in Collegiate Women’s Soccer Open
Objectives: High cumulative workloads and spikes in player workloads have been associated with an increased risk of injury in soccer and other sports. These studies, however, have all been conducted with data from male soccer players or ma…
View article: Wastewater-based detection of two influenza outbreaks
Wastewater-based detection of two influenza outbreaks Open
Traditional influenza surveillance informs control strategies but can lag behind outbreak onset and undercount cases. Wastewater surveillance is effective for monitoring near real-time dynamics of outbreaks but has not been attempted for i…
View article: Comparison of SARS-CoV-2 Test Positivity in NCAA Division I Student Athletes vs Nonathletes at 12 Institutions
Comparison of SARS-CoV-2 Test Positivity in NCAA Division I Student Athletes vs Nonathletes at 12 Institutions Open
This study found that in the setting of SARS-CoV-2 transmission mitigation protocols implemented by the NCAA, participation in intercollegiate athletics was not associated with increased SARS-CoV-2 test positivity. This finding suggests th…
View article: Increased Lower Extremity Injury Risk Associated With Player Load and Distance in Collegiate Women’s Soccer
Increased Lower Extremity Injury Risk Associated With Player Load and Distance in Collegiate Women’s Soccer Open
Background: There is limited research regarding the impact of workload on injury risk specific to women’s soccer. Wearable global positioning system (GPS) units can track workload metrics such as total distance traveled and player load dur…
View article: SARS-CoV-2 Cardiac Involvement in Young Competitive Athletes
SARS-CoV-2 Cardiac Involvement in Young Competitive Athletes Open
Background: Cardiac involvement among hospitalized patients with severe coronavirus disease 2019 (COVID-19) is common and associated with adverse outcomes. This study aimed to determine the prevalence and clinical implications of COVID-19 …
View article: Findings from Cardiovascular Evaluation of NCAA Division I Collegiate Student-Athletes after Asymptomatic or Mildly Symptomatic SARS-CoV-2 Infection
Findings from Cardiovascular Evaluation of NCAA Division I Collegiate Student-Athletes after Asymptomatic or Mildly Symptomatic SARS-CoV-2 Infection Open
Objectives The risk of myocardial damage after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has been controversial. There is an urgent need for data to support the appropriate level of cardiovascular screening for…