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Reaction time and concussion

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https://www.readbyqxmd.com/read/29337022/reaction-time-and-joint-kinematics-during-functional-movement-in-recently-concussed-individuals
#1
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
https://www.readbyqxmd.com/read/29308917/assessing-the-effects-of-concussion-using-the-c3logix-test-battery-an-exploratory-study
#2
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
https://www.readbyqxmd.com/read/29278998/neurocognitive-and-fine-motor-deficits-in-asymptomatic-adolescents-during-the-subacute-period-after-concussion
#3
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
https://www.readbyqxmd.com/read/29198541/returning-adolescents-to-driving-after-sports-related-concussions-what-influences-physician-decision-making
#4
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)...
November 30, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29189341/normative-data-set-of-sway-balance-mobile-assessment-in-pediatric-athletes
#5
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
https://www.readbyqxmd.com/read/29189340/influence-of-postconcussion-sleep-duration-on-concussion-recovery-in-collegiate-athletes
#6
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
https://www.readbyqxmd.com/read/29168451/intraindividual-cognitive-variability-an-examination-of-anam4-tbi-mil-simple-reaction-time-data-from-service-members-with-and-without-mild-traumatic-brain-injury
#7
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
https://www.readbyqxmd.com/read/29138991/test-retest-reliability-and-interpretation-of-common-concussion-assessment-tools-findings-from-the-ncaa-dod-care-consortium
#8
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
https://www.readbyqxmd.com/read/29114564/the-effect-of-pretest-exercise-on-baseline-computerized-neurocognitive-test-scores
#9
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
https://www.readbyqxmd.com/read/29098599/factors-contributing-to-disparities-in-baseline-neurocognitive-performance-and-concussion-symptom-scores-between-black-and-white-collegiate-athletes
#10
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
https://www.readbyqxmd.com/read/28935224/the-test-retest-reliability-of-three-computerized-neurocognitive-tests-used-in-the-assessment-of-sport-concussion
#11
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
https://www.readbyqxmd.com/read/28919121/the-utility-of-instrumented-dual-task-gait-and-tablet-based-neurocognitive-measurements-after-concussion
#12
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
https://www.readbyqxmd.com/read/28894835/the-use-of-oculomotor-vestibular-and-reaction-time-tests-to-assess-mild-traumatic-brain-injury-mtbi-over-time
#13
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
https://www.readbyqxmd.com/read/28889832/intra-individual-cognitive-variability-an-examination-of-anam4-tbi-mil-simple-reaction-time-data-from-service-members-with-and-without-mild-traumatic-brain-injury
#14
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). Existing evidence, however, remains mixed regarding ANAM4's ability to identify cognitive issues following mild traumatic brain injury (mTBI). Studies typically examine ANAM4 by comparing mean scores to baseline or normative scores. A more fine-grained approach involves examining inconsistency within an individual's performance...
September 11, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28874926/craniosacral-therapy-and-visceral-manipulation-a-new-treatment-intervention-for-concussion-recovery
#15
Gail Wetzler, Melinda Roland, Sally Fryer-Dietz, Dee Dettmann-Ahern
Background: Military service members and veterans face health issues related to traumatic brain injury (TBI), especially during combat, use of heavy equipment, and exposures to environmental hazards and explosives. There were 400,000 TBIs reported in deployed U.S. troops in 2012. Athletes are also subject to TBI. Studies have indicated that some manual therapies could be helpful for treating patients who have post-concussive syndrome. Objective: This case series report describes the effects of CranioSacral Therapy (CST), Visceral Manipulation (VM), and Neural Manipulation (NM) modalities for treating patients who have post-concussion syndrome...
August 1, 2017: Medical Acupuncture
https://www.readbyqxmd.com/read/28872365/recovery-progression-and-symptom-resolution-in-sport-related-mild-traumatic-brain-injury
#16
Ensie Abbassi, Bess Sirmon-Taylor
OBJECTIVE: To characterize the recovery progression of a group of athletes who participated in a concussion management program based on (1) group analysis and (2) individual analysis. SETTING: Concussion management clinic. PARTICIPANTS: Thirty athletes (22 males, 8 females; baseline age = 16.23 ± 2.40 years) who had undergone four assessments: one baseline and three post-injury assessments at 3, 8, 15 days post-injury. DESIGN: Retrospective clinical...
September 5, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28838286/self-reported-history-of-seizure-and-baseline-neurocognitive-test-performance-in-student-athletes-an-initial-investigation
#17
Brian H Zalneraitis, Aaron M Yengo-Kahn, Alec J Pawlukiewicz, Gary S Solomon
OBJECTIVES: Baseline neurocognitive assessment data can be critical in return to play (RTP) decision-making following a sport-related concussion (SRC). The literature indicates that many modifying factors of SRC have been studied empirically; however, there has been little investigation into the effect of a self-reported history of seizure(s) on baseline neurocognitive test data. The objective of this investigation was to determine whether a self-reported history of seizure(s) is associated with differences in baseline Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) performance...
September 1, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28816519/the-effects-of-exercise-on-a-choice-reaction-time-task-in-individuals-with-post-concussion-syndrome
#18
Stephanie A Ramautar, Alyssa A Prangley, Michael E Cinelli
PURPOSE: To assess cognitive performance differences pre- and post-exercise in individuals without concussion (non-concussed, NC) and individuals with post-concussion syndrome (PCS). METHODS: A total of 30 participants completed a choice reaction time (CRT) task in the form of an iPad application, measuring each individual's decision-making capabilities, while wearing a head-mounted eye tracker system. Participants completed four blocks of testing; the time interval between the first two blocks of trials and the last two blocks of trials was 10 minutes...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28722468/evaluating-the-recovery-curve-for-clinically-assessed-reaction-time-after-concussion
#19
Gianluca Del Rossi
CONTEXT:   A change in reaction time is one of various clinical measures of neurocognitive function that can be monitored after concussion and has been reported to be among the most sensitive indicators of cognitive impairment. OBJECTIVE:   To determine the timeline for clinically assessed simple reaction time to return to baseline after a concussion in high school athletes. DESIGN:   Observational study. SETTING:   Athletic training room...
August 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28708709/genetics-influence-neurocognitive-performance-at-baseline-but-not-concussion-history-in-collegiate-student-athletes
#20
Graham D Cochrane, Mark H Sundman, Eric E Hall, Matthew C Kostek, Kirtida Patel, Kenneth P Barnes, Caroline J Ketcham
OBJECTIVE: This study investigates 4 single-nucleotide polymorphisms [Apolipoprotein E (APOE), APOE promoter, catechol-O-methyl transferase (COMT), and dopamine D2 receptor] that have been implicated in concussion susceptibility and/or cognitive ability in collegiate student-athletes. DESIGN: Cross-sectional study. SETTING: Neuroscience laboratory at Elon University. PARTICIPANTS: Two hundred fifty division I collegiate student-athletes (66 women, 184 men) from various sports...
July 11, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
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