Read by QxMD icon Read

Reaction time and concussion

Alessander Danna-Dos-Santos, Sambit Mohapatra, Maria Santos, Adriana M Degani
Understanding the long-term effects of concussive events remains a challenge for the development of modern medical practices and the prevention of recurrent traumas. In this study, we utilized indices of oculomotor performance and the ability to react to simple environmental stimuli to assess the long-term motor effects of traumatic brain injury in its mildest form (mTBI). We performed analysis of eye movement accuracy, investigated the presence of abnormal eye movements, and quantified time to react to simple environmental stimuli on long-term mTBI survivors...
March 15, 2018: Scientific Reports
Christopher P Tomczyk, Megan Mormile, Megan S Wittenberg, Jody L Langdon, Tamerah N Hunt
CONTEXT:   An estimated 15.3 million adolescent students are enrolled in U.S. high schools, with approximately 7.8 million participating in athletics. Researchers have examined various demographics in high school athletes; however, athletic participation may play a larger role in test performance than previously thought. Currently, investigations of concussion assessment may rely on uninjured athletes as controls. However, due to the intense nature of athletics, this may not be an appropriate practice...
March 15, 2018: Journal of Athletic Training
Barry P Katz, Maria Kudela, Jaroslaw Harezlak, Michael McCrea, Thomas McAllister, Steven P Broglio
BACKGROUND: Sport-related concussion and repetitive head impact exposure in contact sports continue to receive increased attention in public and medical spheres. The Concussion Assessment, Research and Education (CARE) Consortium, a multicenter cooperative, was established to study the natural history of concussion in National Collegiate Athletic Association (NCAA) collegiate student-athletes across 29 colleges and universities in the United States. The purpose of this investigation is to provide normative data from the CARE Consortium and evaluate for differences between sport categories...
March 1, 2018: Sports Medicine
Samuel R Walton, Donna K Broshek, Jason Freeman, C Munro Cullum, Jacob E Resch
PURPOSE: To investigate the frequency of valid yet suboptimal Immediate Postconcussion Assessment and Cognitive Test© (ImPACT) performance in university athletes and to explore the benefit of subsequent ImPACT administrations. METHODS: This descriptive laboratory study involved baseline administration of ImPACT to 769 university athletes per the institution's concussion management protocol. Testing was proctored in groups of ≤ 2 participants. Participants who scored below the 16th percentile according to ImPACT normative data were re-administered ImPACT up to two additional times as these scores were thought to be potentially indicative of suboptimal effort or poor understanding of instructions...
February 27, 2018: Medicine and Science in Sports and Exercise
William T Tsushima, Hyeong Jun Ahn, Andrea M Siu, Kara Yoshinaga, So Yung Choi, Nathan M Murata
The aim of this study was to examine the neuropsychological test results of non-concussed high school athletes playing at three different levels of contact sports. Based on the concussion risk data of 12 different sports, a High Contact group (n=2819; wrestling/martial arts, cheerleading, track and field, football), a Moderate Contact group (n=2323; softball, basketball, soccer), and a Low Contact group (n=1580; baseball, volleyball, water polo, tennis, cross-country) were formed and compared in terms of their scores on the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT)...
February 2, 2018: Applied Neuropsychology. Child
Alan J Pearce, Billymo Rist, Clare L Fraser, Adrian Cohen, Jerome J Maller
BACKGROUND: Concussion is regarded as a common injury in rugby league, however no studies have explored the long-term neurophysiological and cognitive effects of repeated concussion injuries in this sport. METHODS: Former professional rugby athletes (n = 25) were compared to 25 age-matched participants with no history of a concussion. All participants completed standardised motor dexterity, reaction time, and cognitive tasks for working memory, associative learning and rule acquisition and reversal...
February 1, 2018: Brain Injury: [BI]
Natalie K Sandel, Phillip R Worts, Scott Burkhart, Luke Henry
PRIMARY OBJECTIVE: The American Motorcyclist Association requires professional riders to undergo baseline computerized neurocognitive testing (CNT) using the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) test for concussion management. It is recommended this practice be expanded to the amateur level, but limited research has explored whether baseline testing is necessary for youth when normative data is available. This study evaluates the utility of baseline testing for amateur riders by comparing their performance to those of traditional youth sports comprising normative datasets...
January 30, 2018: Brain Injury: [BI]
Robert C Lynall, J Troy Blackburn, Kevin M Guskiewicz, Stephen W Marshall, Prudence Plummer, Jason P Mihalik
OBJECTIVE: To compare movement reaction time and joint kinematics between recently concussed and matched control recreational athletes during 3 functional tasks. DESIGN: Cross-sectional. SETTING: Laboratory. PARTICIPANTS: Thirty college-aged recreational athletes comprising two groups (15 participants each): 1) Recent concussion group (median time since concussion 126 days, range 28-432 days), and 2) Age- and sex-matched control group with no recent concussions...
January 11, 2018: Archives of Physical Medicine and Rehabilitation
John P K Bernstein, Matthew Calamia, Joshua Pratt, Shelly Mullenix
The C3Logix is a computerized concussion assessment tool that measures a wider array of symptoms (i.e., balance and oculomotor functioning) than other computerized batteries. Although the C3Logix has been used increasingly by athletic organizations at all levels of play, its utility within the concussion population has not been extensively examined. The current study aimed to determine whether the C3Logix is sensitive to the effects of concussion. A total of 54 student-athletes enrolled at a large southern university completed the C3Logix at baseline and within days following a suspected concussion (mean = 2...
January 8, 2018: Applied Neuropsychology. Adult
Richard J Servatius, Kevin M Spiegler, Justin D Handy, Kevin C H Pang, Jack W Tsao, Catherine A Mazzola
Adolescents are at high risk for sustaining concussions. There is considerable controversy regarding the sensitivity of neurocognitive tests to detect and track dysfunction in the aftermath of concussion. Two neurocognitive test batteries were compared during the subacute phase of recovery from concussion to determine sensitivity to concussion. Adolescents (ages 11-17 years) with a concussion diagnosis (8 males, 7 females, 9-69 days after injury) were recruited through a concussion clinic and compared to community non-concussed volunteers (11 males, 3 females)...
December 26, 2017: Journal of Neurotrauma
James MacDonald, Neha Patel, Julie Young, Emily Stuart
OBJECTIVE: To determine which data collected on an initial patient clinic visit for a sports-related concussion (SRC) might influence physicians to clear an adolescent to return to drive (RTD) after injury. STUDY DESIGN: Retrospective cohort study of 189 adolescents with a SRC referred to a hospital-based concussion clinic between June 1, 2015, and May 31, 2016. Subjects were ≥16 years with a valid driver's license (median age = 16, IQR [16, 17]). Concussion evaluations included Post-Concussion Symptom Scale, modified Balance Error Scoring System, and postinjury computerized neurocognitive testing (CNT)...
March 2018: Journal of Pediatrics
Stevi L Anderson, Dustin Gatens, Colette Glatts, Stephen A Russo
OBJECTIVE: To examine and describe normative values for an objective, mobile measure of postural stability commonly used in concussion assessments, SWAY Balance (SWAY Medical, Tulsa, Oklahoma). DESIGN: Retrospective analysis of baseline balance assessments in a healthy pediatric population. SETTING: Baseline assessments completed by certified athletic trainers at an outpatient concussion center or sports medicine offices in Philadelphia, PA and surrounding suburban Pennsylvania and New Jersey or during an athletic trainer's baseline assessment of collegiate athletes at a National Collegiate Athletic Association (NCAA) Division-II University in Fort Lauderdale, FL...
November 16, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Nicole L Hoffman, Michelle L Weber, Steven P Broglio, Michael McCrea, Thomas W McAllister, Julianne D Schmidt
OBJECTIVE: To determine whether decreased sleep duration postconcussion influences days to asymptomatic and assessment of performance throughout recovery. DESIGN: Prospective. SETTING: Institutional Clinical Research Laboratory. PATIENTS: Four hundred twenty-three collegiate athletes were diagnosed with concussion. INTERVENTIONS: Multidimensional concussion assessment battery was conducted at baseline, within 24 to 48 hours, daily [2-4 days postinjury (PI); symptoms only], once asymptomatic, and after return-to-play...
November 16, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Wesley R Cole, Emma Gregory, Jacques P Arrieux, F Jay Haran
OBJECTIVES: The Automated Neuropsychological Assessment Metrics 4 TBI-MIL (ANAM4) is a computerized cognitive test often used in post-concussion assessments with U.S. service members (SMs). However, existing evidence remains mixed regarding ANAM4's ability to identify cognitive issues following mild traumatic brain injury (mTBI). Studies typically examine ANAM4 using standardized scores and/ or comparisons to a baseline. A more fine-grained approach involves examining inconsistency within an individual's performance (i...
November 23, 2017: Journal of the International Neuropsychological Society: JINS
Steven P Broglio, Barry P Katz, Shi Zhao, Michael McCrea, Thomas McAllister
BACKGROUND: Concussion diagnosis is typically made through clinical examination and supported by performance on clinical assessment tools. Performance on commonly implemented and emerging assessment tools is known to vary between administrations, in the absence of concussion. OBJECTIVE: To evaluate the test-retest reliability of commonly implemented and emerging concussion assessment tools across a large nationally representative sample of student-athletes. METHODS: Participants (n = 4874) from the Concussion Assessment, Research, and Education Consortium completed annual baseline assessments on two or three occasions...
November 14, 2017: Sports Medicine
Alec Pawlukiewicz, Aaron M Yengo-Kahn, Gary Solomon
Background: Baseline neurocognitive assessment plays a critical role in return-to-play decision making following sport-related concussions. Prior studies have assessed the effect of a variety of modifying factors on neurocognitive baseline test scores. However, relatively little investigation has been conducted regarding the effect of pretest exercise on baseline testing. Purpose/Hypothesis: The aim of our investigation was to determine the effect of pretest exercise on baseline Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) scores in adolescent and young adult athletes...
October 2017: Orthopaedic Journal of Sports Medicine
Jessica Wallace, Tracey Covassin, Ryan Moran, Jamie McAllister Deitrick
BACKGROUND: National Collegiate Athletic Association (NCAA) concussion guidelines state that all NCAA athletes must have a concussion baseline test prior to commencing their competitive season. To date, little research has examined potential racial differences on baseline neurocognitive performance among NCAA athletes. The purpose of this study was to investigate differences between Black and White collegiate athletes on baseline neurocognitive performance and self-reported symptoms. METHODS: A total of 597 collegiate athletes (400 White, 197 Black) participated in this study...
November 2, 2017: Journal of Racial and Ethnic Health Disparities
Jacob E Resch, Mathew W Schneider, C Munro Cullum
Computerized neurocognitive tests (CNTs) are widely used at all competitive levels of sport to assess sport concussion (SC). Whereas there are multiple CNTs available, little is known about how some of the most popular platforms compare. The purpose of this study was to investigate the test-retest reliability of the Automated Neuropsychological Assessment Metrics (ANAM), Concussion Vital Signs (CVS) and the Immediate Postconcussion and Cognitive Testing battery (ImPACT) using clinically relevant time points in healthy college-age participants...
September 18, 2017: International Journal of Psychophysiology
David R Howell, Alexandra Stillman, Thomas A Buckley, Brant Berkstresser, Francis Wang, William P Meehan
OBJECTIVES: Quantitative and non-invasive measurements acquired by neurocognitive or gait evaluations are useful concussion management components. Emerging technology has allowed for the development of portable and objective tests which may be potentially useful across many settings where evaluations take place. Our aim was to examine the association between instrumented dual-task gait and tablet-based neurocognitive outcome variables with an acute concussion. DESIGN: A total of 59 collegiate athletes were identified and tested within 5days of concussion (n=18, 50% female, 20±1years of age) or as a part of a baseline examination (n=41, 29% female, 19±1years of age)...
August 16, 2017: Journal of Science and Medicine in Sport
Michael E Hoffer, Carey Balaban, Mikhaylo Szczupak, James Buskirk, Hillary Snapp, James Crawford, Sean Wise, Sara Murphy, Kathryn Marshall, Constanza Pelusso, Sean Knowles, Alex Kiderman
OBJECTIVES: The objective of this work is to examine the outcomes of a set of objective measures for evaluating individuals with minor traumatic brain injury (mTBI) over the sub-acute time period. These methods involve tests of oculomotor, vestibular, and reaction time functions. This work expands upon published work examining these test results at the time of presentation. STUDY DESIGN: This study is a prospective age- and sex-matched controlled study. MATERIALS AND METHODS: The subject group was composed of 106 individuals with mTBI and 300 age- and sex-matched controls without a history of mTBI...
August 2017: Laryngoscope Investigative Otolaryngology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"