keyword
MENU ▼
Read by QxMD icon Read
search

Concussion technology

keyword
https://www.readbyqxmd.com/read/27805468/vision-testing-in-the-evaluation-of-concussion
#1
Cinthi Pillai, John W Gittinger
Traumatic brain injury results from an acute impact to the head causing brain dysfunction. Concussion is a form of mild traumatic brain injury. There are significant short- and long-term sequelae of concussion, and early diagnosis and management are key to recovery. Visual system symptoms and signs are common following concussion and have been shown to be a useful feature of concussion testing. Neuro-ophthalmic findings include abnormalities in the pupillary light reflex, accommodation, convergence, extraocular motility, steroacuity, as well as pursuit and saccades...
November 2, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27604709/the-history-and-evolution-of-experimental-traumatic-brain-injury-models
#2
John Povlishock
This narrative provides a brief history of experimental animal model development for the study of traumatic brain injury. It draws upon a relatively rich history of early animal modeling that employed higher order animals to assess concussive brain injury while exploring the importance of head movement versus stabilization in evaluating the animal's response to injury. These themes are extended to the development of angular/rotational acceleration/deceleration models that also exploited brain movement to generate both the morbidity and pathology typically associated with human traumatic brain injury...
2016: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27594780/a-review-of-instrumented-equipment-to-investigate-head-impacts-in-sport
#3
REVIEW
Declan A Patton
Contact, collision, and combat sports have more head impacts as compared to noncontact sports; therefore, such sports are uniquely suited to the investigation of head impact biomechanics. Recent advances in technology have enabled the development of instrumented equipment, which can estimate the head impact kinematics of human subjects in vivo. Literature pertaining to head impact measurement devices was reviewed and usage, in terms of validation and field studies, of such devices was discussed. Over the past decade, instrumented equipment has recorded millions of impacts in the laboratory, on the field, in the ring, and on the ice...
2016: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/27580157/evaluating-the-threshold-theory-can-head-impact-indicators-help
#4
Jason P Mihalik, Robert C Lynall, Erin B Wasserman, Kevin M Guskiewicz, Stephen W Marshall
PURPOSE: To determine the clinical utility of biomechanical head impact indicators by measuring the sensitivity, specificity, positive predictive value (PV+), and negative predictive value (PV-) of multiple thresholds. METHODS: Head impact biomechanics (n=283,348) from 185 football players in one Division I program were collected. A multidisciplinary clinical team independently made concussion diagnoses (n=24). We dichotomized each impact using diagnosis (yes=24/no=283,324), and across a range of plausible impact indicator thresholds (10g increments beginning with a resultant linear head acceleration of 50g and ending with 120g)...
August 30, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27402455/accelerometers-for-the-assessment-of-concussion-in-male-athletes-a-systematic-review-and-meta-analysis
#5
James H Brennan, Biswadev Mitra, Anneliese Synnot, Joanne McKenzie, Catherine Willmott, Andrew S McIntosh, Jerome J Maller, Jeffrey V Rosenfeld
BACKGROUND: Concussion is common in the sporting arena and is often challenging to diagnose. The development of wearable head impact measurement systems has enabled measurement of head kinematics in contact sports. OBJECTIVES: The objective of this systematic review was to determine the characteristics of head kinematics measured by an accelerometer system among male athletes diagnosed with concussion. METHODS: A systematic search was conducted in July 2015...
July 11, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27350072/novel-method-of-weighting-cumulative-helmet-impacts-improves-correlation-with-brain-white-matter-changes-after-one-football-season-of-sub-concussive-head-blows
#6
Kian Merchant-Borna, Patrick Asselin, Darren Narayan, Beau Abar, Courtney M C Jones, Jeffrey J Bazarian
One football season of sub-concussive head blows has been shown to be associated with subclinical white matter (WM) changes on diffusion tensor imaging (DTI). Prior research analyses of helmet-based impact metrics using mean and peak linear and rotational acceleration showed relatively weak correlations to these WM changes; however, these analyses failed to account for the emerging concept that neuronal vulnerability to successive hits is inversely related to the time between hits (TBH). To develop a novel method for quantifying the cumulative effects of sub-concussive head blows during a single season of collegiate football by weighting helmet-based impact measures for time between helmet impacts...
December 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27115516/management-of-persistent-cognitive-symptoms-after-sport-related-concussion
#7
McKay Moore Sohlberg, Alexander K Ledbetter
PURPOSE: This case review examines treatments speech-language pathologists at our clinic delivered to middle school, high school, and college students for the management of persistent cognitive symptoms after sport-related concussion. The goal is to examine a range of treatment options, describe clinical rationale for selecting those treatments, and report outcomes in order to identify feasible interventions for systematic evaluation through efficacy research. METHOD: Review of clinic intake data identified 63 cases referred for cognitive rehabilitation over a 36-month period...
May 1, 2016: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/26809358/cerebrovascular-reactivity-changes-in-asymptomatic-female-athletes-attributable-to-high-school-soccer-participation
#8
Diana O Svaldi, Emily C McCuen, Chetas Joshi, Meghan E Robinson, Yeseul Nho, Robert Hannemann, Eric A Nauman, Larry J Leverenz, Thomas M Talavage
As participation in women's soccer continues to grow and the longevity of female athletes' careers continues to increase, prevention and care for mTBI in women's soccer has become a major concern for female athletes since the long-term risks associated with a history of mTBI are well documented. Among women's sports, soccer exhibits among the highest concussion rates, on par with those of men's football at the collegiate level. Head impact monitoring technology has revealed that "concussive hits" occurring directly before symptomatic injury are not predictive of mTBI, suggesting that the cumulative effect of repetitive head impacts experienced by collision sport athletes should be assessed...
January 26, 2016: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/26737016/investigating-the-feasibility-of-evestg-assessment-for-screening-concussion
#9
A Suleiman, B Lithgow, B Mansouri, Z Moussavi
Electrovestibulography (EVestG™) is a new technology that objectively measures the vestibular response. It has the potential to objectively, quickly and cost-effectively screen concussion. EVestG signals are recorded painlessly and non-invasively from the external ear in response to vestibular stimuli, and consist of brainstem and peripheral sensory oto-acoustic signals modulated by the cortical responses. In this study, we investigated the relationship between characteristic features of the extracted field potentials (FPs) of EVestG signals in people with side-impact concussion in comparison with those of control participants...
2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/26582146/high-fidelity-simulation-of-primary-blast-direct-effects-on-the-head
#10
Thomas W Sawyer, Yushan Wang, David V Ritzel, Tyson Josey, Mercy Villanueva, Yimin Shei, Peggy Nelson, Grant Hennes, Tracy Weiss, Cory Vair, Changyang Fan, Julia Barnes
The role of primary blast in blast-induced traumatic brain injury (bTBI) is controversial in part due to the technical difficulties of generating free-field blast conditions in the laboratory. The use of traditional shock tubes often results in artifacts, particularly of dynamic pressure, whereas the forces affecting the head are dependent on where the animal is placed relative to the tube, whether the exposure is whole-body or head-only, and on how the head is actually exposed to the insult (restrained or not)...
July 1, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/26505696/differential-sensitivity-between-a-virtual-reality-balance-module-and-clinically-used-concussion-balance-modalities
#11
Elizabeth F Teel, Michael R Gay, Peter A Arnett, Semyon M Slobounov
OBJECTIVE: Balance assessments are part of the recommended clinical concussion evaluation, along with computerized neuropsychological testing and self-reported symptoms checklists. New technology has allowed for the creation of virtual reality (VR) balance assessments to be used in concussion care, but there is little information on the sensitivity and specificity of these evaluations. The purpose of this study is to establish the sensitivity and specificity of a VR balance module for detecting lingering balance deficits clinical concussion care...
March 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/26341424/test-retest-reliability-of-kinarm-robot-sensorimotor-and-cognitive-assessment-in-pediatric-ice-hockey-players
#12
C Elaine Little, Carolyn Emery, Amanda Black, Stephen H Scott, Willem Meeuwisse, Alberto Nettel-Aguirre, Brian Benson, Sean Dukelow
BACKGROUND: Better diagnostic and prognostic tools are needed to address issues related to early diagnosis and management of concussion across the continuum of aging but particularly in children and adolescents. The purpose of the current study was to evaluate the reliability of robotic technology (KINARM robot) assessments of reaching, position sense, bimanual motor function, visuospatial skills, attention and decision making in youth ice hockey players (ages 10-14). METHODS: Thirty-four male children attended two testing days, one week apart...
2015: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/26331470/investigating-the-feasibility-and-utility-of-bedside-balance-technology-acutely-after-pediatric-concussion-a-pilot-study
#13
Tara D Rhine, Terri L Byczkowski, Ross A Clark, Lynn Babcock
OBJECTIVE: To examine postural instability in children acutely after concussion, using the Wii Balance Board (WBB). We hypothesized that children with traumatic brain injury would have significantly worse balance relative to children without brain injury. DESIGN: Prospective case-control pilot study. SETTING: Emergency department of a tertiary urban pediatric hospital. PARTICIPANTS: Cases were a convenience sample 11-16 years old who presented within 6 hours of sustaining concussion...
May 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/26130391/prolonged-activity-restriction-after-concussion-are-we-worsening-outcomes
#14
Marc DiFazio, Noah D Silverberg, Michael W Kirkwood, Raquel Bernier, Grant L Iverson
The current treatment of concussion or mild traumatic brain injury (mTBI) is primarily based on expert consensus. Most clinical practice guidelines advise cognitive and physical rest after injury including withdrawal from normal life activities such as school attendance, sports participation, and technology use until symptoms resolve. Some individuals who sustain an mTBI experience persistent physical, cognitive, and mental health problems. Activity restriction itself may contribute to protracted recovery and other complications...
May 2016: Clinical Pediatrics
https://www.readbyqxmd.com/read/26125165/potential-of-visual-sensory-screening-diagnostic-evaluation-and-training-for-treatment-of-postconcussive-symptoms-and-performance-enhancement-for-special-forces-qualified-personnel
#15
Sean T Suttles
Mild traumatic brain injury (mTBI) or concussive injuries remain a challenge for both athletes and clinicians, given high incidence rates and heterogeneous clinical trajectories. Moreover, exposure to blast in combat is compounded by chronic, frequent exposure to a variety of subclinical impacts and overpressure, in some cases annually over many years. Subsequent injuries are often more severe than the original and lead to higher incidence of chronic symptoms in combat units, particularly Special Operations Forces (SOF), which is compounded by a propensity to underreport or avoid Army medical systems altogether...
2015: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/26121526/extracting-time-accurate-acceleration-vectors-from-nontrivial-accelerometer-arrangements
#16
Jennifer A Franck, Janet Blume, Joseph J Crisco, Christian Franck
Sports-related concussions are of significant concern in many impact sports, and their detection relies on accurate measurements of the head kinematics during impact. Among the most prevalent recording technologies are videography, and more recently, the use of single-axis accelerometers mounted in a helmet, such as the HIT system. Successful extraction of the linear and angular impact accelerations depends on an accurate analysis methodology governed by the equations of motion. Current algorithms are able to estimate the magnitude of acceleration and hit location, but make assumptions about the hit orientation and are often limited in the position and/or orientation of the accelerometers...
September 2015: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/25838527/self-powered-monitoring-of-repeated-head-impacts-using-time-dilation-energy-measurement-circuit
#17
Tao Feng, Kenji Aono, Tracey Covassin, Shantanu Chakrabartty
Due to the current epidemic levels of sport-related concussions (SRC) in the U.S., there is a pressing need for technologies that can facilitate long-term and continuous monitoring of head impacts. Existing helmet-sensor technology is inconsistent, inaccurate, and is not economically or logistically practical for large-scale human studies. In this paper, we present the design of a miniature, battery-less, self-powered sensor that can be embedded inside sport helmets and can continuously monitor and store different spatial and temporal statistics of the helmet impacts...
April 2015: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/25780390/changes-in-the-neurochemistry-of-athletes-with-repetitive-brain-trauma-preliminary-results-using-localized-correlated-spectroscopy
#18
Alexander P Lin, Saadallah Ramadan, Robert A Stern, Hayden C Box, Christopher J Nowinski, Brian D Ross, Carolyn E Mountford
INTRODUCTION: The goal was to identify which neurochemicals differ in professional athletes with repetitive brain trauma (RBT) when compared to healthy controls using a relatively new technology, in vivo Localized COrrelated SpectroscopY (L-COSY). METHODS: To achieve this, L-COSY was used to examine five former professional male athletes with 11 to 28 years of exposure to contact sports. Each athlete who had had multiple symptomatic concussions and repetitive sub concussive trauma during their career was assessed by an experienced neuropsychologist...
2015: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/25702214/mild-traumatic-brain-injury
#19
REVIEW
Douglas I Katz, Sara I Cohen, Michael P Alexander
Mild traumatic brain injury (TBI) is common but accurate diagnosis and defining criteria for mild TBI and its clinical consequences have been problematic. Mild TBI causes transient neurophysiologic brain dysfunction, sometimes with structural axonal and neuronal damage. Biomarkers, such as newer imaging technologies and protein markers, are promising indicators of brain injury but are not ready for clinical use. Diagnosis relies on clinical criteria regarding depth and duration of impaired consciousness and amnesia...
2015: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/25644249/onabotulinum-toxin-a-for-the-treatment-of-headache-in-service-members-with-a-history-of-mild-traumatic-brain-injury-a-cohort-study
#20
Juanita A Yerry, Devon Kuehn, Alan G Finkel
OBJECTIVE: Post-traumatic headache (PTH) of the migraine type is a common complication of mild traumatic brain injury (including blast injuries) in active duty service members. Persistent and near-daily headache occur. Usual preventive medications may have unacceptable side effects. Anecdotal reports suggest that onabotulinum toxin A (OBA) might be an effective treatment in these patients. METHODS: This study is a real-time retrospective consecutive case series of all patients treated with OBA at the Concussion Care Clinic of Womack Army Medical Center, Ft...
March 2015: Headache
keyword
keyword
38785
1
2
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"