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https://www.readbyqxmd.com/read/29809102/reliability-of-five-novel-reaction-time-and-cognitive-load-protocols
#1
Kelsey Picha, Carolina Quintana, Amanda Glueck, Matt Hoch, Nicholas R Heebner, John P Abt
CONTEXT: Reaction time (RT) is crucial to athletic performance. Therefore, when returning athletes to play following injury, it is important to evaluate RT characteristics ensuring a safe return. The Dynavision D2® system may be utilized as an assessment and rehabilitation aid in the determination of RT under various levels of cognitive load. Previous research has demonstrated good reliability of simple protocols when assessed following a 24-48 hour test-retest window. Expanding reliable test-retest intervals may further refine novel RT protocols for use as a diagnostic and rehabilitation tool...
May 29, 2018: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28722300/digital-subtraction-angiography-dynavision-in-pretreatment-planning-for-embolization-of-dural-arterio-venous-fistulas
#2
Alex Botsford, Jai Jai Shiva Shankar
BACKGROUND AND PURPOSE: We have found DSA-Dynavision with multiplanar reconstruction very helpful in understanding the complex anatomy and planning of treatment of carotico-cavernous fistulas. The purpose of our study was to examine whether using DSA-Dynavision in pretreatment planning results in better outcome after endovascular treatment of dural arterio-venous fistulas (dAVFs). METHODS: Patients with dAVF treated with endovascular embolization were retrospectively identified from our interventional neuroradiology database...
January 2018: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28107216/analysis-of-central-and-peripheral-vision-reaction-times-in-patients-with-postconcussion-visual-dysfunction
#3
Joseph F Clark, James K Ellis, Timothy M Burns, John M Childress, Jon G Divine
OBJECTIVE: To determine whether central and peripheral vision reaction times (PVRTs) are prolonged in patients with visual dysfunction after sustaining a concussion. DESIGN: Comparison of Dynavision D2 central and PVRTs in patients with postconcussion visual dysfunction were compared with control data from a normative patient database. Concussion patients without visual dysfunction were not included in this study. SETTING: National Collegiate Athletic Association Division 1 college training room and university based, academic health center...
September 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27651475/dsa-dynavision-in-pretreatment-planning-for-coil-embolization-of-indirect-carotid-cavernous-fistula
#4
COMPARATIVE STUDY
Alex Botsford, Jai Jai Shiva Shankar
INTRODUCTION: Indirect carotid cavernous fistulas are treated with coil embolization when they present with orbital/visual symptoms or if there is cortical venous reflux. Most of the time, the treatment is done by non-specifically packing the whole cavernous sinus with coils. The purpose of this case series was to examine whether DSA-Dynavision before embolization would improve treatment by shortening the procedure time, requiring fewer coils, or reducing the complication rate. MATERIALS AND METHOD: 8 patients with 9 fistula sites were retrospectively identified...
April 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/25133072/effects-of-postural-control-manipulation-on-visuomotor-training-performance-comparative-data-in-healthy-athletes
#5
Kathryn Bigsby, Robert E Mangine, Joseph F Clark, Joseph T Rauch, Benjamin Bixenmann, Antonia W Susaret, Kimberly A Hasselfeld, Angelo J Colosimo
PURPOSE/BACKGROUND: Visuomotor ability is an important parameter for neurologic function and effective sport performance. Adding a balance challenge during a structured eye-hand coordination task, such as hitting lights on a light board (Dynavision™), has not been previously reported. Using Division I football players, the aim of this study was to determine normative data on a dual-task performance regimen combining a visuomotor light board task with a balance task. The intent is to use such normative data and baseline data as part of a concussion management program...
August 2014: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/25005514/evidence-based-review-of-interventions-for-medically-at-risk-older-drivers
#6
REVIEW
Sherrilene Classen, Miriam Monahan, Beth Auten, Abraham Yarney
OBJECTIVE. To conduct an evidence-based review of intervention studies of older drivers with medical conditions. METHOD. We used the American Occupational Therapy Association's classification criteria (Levels I-V, I = highest level of evidence) to identify driving interventions. We classified studies using letters to represent the strength of recommendations: A = strongly recommend the intervention; B = recommend intervention is provided routinely; C = weak evidence that the intervention can improve outcomes; D = recommend not to provide the intervention; I = insufficient evidence to recommend for or against the intervention...
July 2014: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/24832975/resistance-exercise-may-improve-spatial-awareness-and-visual-reaction-in-older-adults
#7
Maren S Fragala, Kyle S Beyer, Adam R Jajtner, Jeremy R Townsend, Gabriel J Pruna, Carleigh H Boone, Johnathan D Bohner, David H Fukuda, Jeffrey R Stout, Jay R Hoffman
Aerobic exercise has been shown to counteract age-related neurological decrements that are associated with cognitive and physical impairments. However, the effects of resistance exercise on cognition, reaction, and neurotrophins are largely unknown. We examined changes in spatial awareness, visual and motor reaction, and circulating brain-derived neurotrophic factor (BDNF) in response to a resistance exercise intervention in older adults (aged 70.6 ± 6.1 years). Spatial awareness was evaluated before and after training with a Neurotracker perceptual 3-dimensional object-tracking device...
August 2014: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/24570618/reliability-of-the-dynavision%C3%A2-d2-for-assessing-reaction-time-performance
#8
Adam J Wells, Jay R Hoffman, Kyle S Beyer, Adam R Jajtner, Adam M Gonzalez, Jeremy R Townsend, Gerald T Mangine, Edward H Robinson, William P McCormack, Maren S Fragala, Jeffrey R Stout
Recently, the Dynavision™ D2 Visuomotor Training Device (D2) has emerged as a tool in the assessment of reaction time (RT); however, information regarding the reliability of the D2 have been limited, and to date, reliability data have been limited to non- generalizable samples. Therefore, the purpose of this study was to establish intraclass correlation coefficients (ICC2,1) for the D2 that are generalizable across a population of recreationally active young adults. Forty-two recreationally active men and women (age: 23...
January 2014: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/23899080/effects-of-dynavision-training-as-a-preparatory-intervention-status-postcerebrovascular-accident-a-case-report
#9
Lynne Anderson, Audrey Cross, Danielle Wynthein, Lindsy Schmidt, Kayla Grutz
ABSTRACT Objective. This is a case study of a 67-year-old woman, status post right hemispheric ischemic lesion cerebrovascular accident (CVA), and her use of Dynavision training as a preparatory intervention to determine its influence on her performance skills and perceived occupational performance. Method. The participant engaged in 6 weeks of Dynavision intervention, 3 days per week. The participant was evaluated using a broad battery of assessments at pretest and posttest. Outcome measures included the Action Research Arm Test (ARAT), Canadian Occupational Performance Measure (COPM), and goniometric active range of motion (AROM) measurements for the upper extremity...
October 2011: Occupational Therapy in Health Care
https://www.readbyqxmd.com/read/20668851/2d-rotational-angiography-for-fast-and-standardized-evaluation-of-peripheral-and-visceral-artery-stenoses
#10
COMPARATIVE STUDY
Marcus Katoh, Armin Opitz, Peter Minko, Alexander Massmann, Joachim Berlich, Arno Bücker
PURPOSE: To investigate the value of rotational digital subtraction angiography (rDSA) for evaluation of peripheral and visceral artery stenoses compared to conventional digital subtraction angiography (cDSA). METHODS: A phantom study was performed comparing the radiation dose of cDSA with two projections and rDSA by means of the 2D Dynavision technique (Siemens Medical Solutions, Forchheim, Germany). Subsequently, 33 consecutive patients (18 women, 15 men; mean±SD age 67±15 years) were examined by both techniques...
June 2011: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/19969174/retraining-visual-processing-skills-to-improve-driving-ability-after-stroke
#11
RANDOMIZED CONTROLLED TRIAL
Maria Crotty, Stacey George
UNLABELLED: Crotty M, George S. Retraining visual processing skills to improve driving ability after stroke. OBJECTIVE: To evaluate the effectiveness of retraining using the Dynavision on driving performance of people with stroke. DESIGN: Randomized controlled trial. SETTING: Outpatient rehabilitation clinic in Australia. PARTICIPANTS: People with stroke (N=26) referred for driving assessment. INTERVENTIONS: Eligible participants were randomized to either receive retraining with the Dynavision apparatus for 18 sessions or to receive no intervention and go onto a waitlist...
December 2009: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/18986027/correlations-of-selected-psychomotor-and-visuomotor-tests-with-initial-dynavision-performance
#12
COMPARATIVE STUDY
Michael Vesia, John Esposito, Steve L Prime, Peter Klavora
The current study investigated the relationship between Dynavision scores for 36 men and 52 women (M age = 20.5 yr.) and performance on six conventional psychomotor tests which presumably tap similar psychomotor abilities and visuomotor skills. Analysis indicated that initial Dynavision performance was significantly correlated with performance on these common psychomotor tests. These data extend findings that propose the effectiveness of the Dynavision apparatus to assess performance on basic visual-motor and visual-cognitive functions...
August 2008: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/15346255/analysis-of-mice-tumor-models-using-dynamic-mri-data-and-a-dedicated-software-platform
#13
COMPARATIVE STUDY
H Alfke, S Kohle, E Maurer, I Celik, R Rascher-Friesenhausen, S Behrens, J T Heverhagen, H O Peitgen, K J Klose
PURPOSE: To implement a software platform (DynaVision) dedicated to analyze data from functional imaging of tumors with different mathematical approaches, and to test the software platform in pancreatic carcinoma xenografts in mice with severe combined immunodeficiency disease (SCID). MATERIALS AND METHODS: A software program was developed for extraction and visualization of tissue perfusion parameters from dynamic contrast-enhanced images. This includes regional parameter calculation from enhancement curves, parametric images (e...
September 2004: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/14968340/-mr-imaging-of-lower-leg-muscle-perfusion
#14
Ronald Leppek, Olaf Hoos, Alexander Sattler, Sven Kohle, Simon Azzam, Iyad Al Haffar, Boris Keil, Philip Ricken, Klaus J Klose, Heiko Alfke
PURPOSE: This article describes the potential of dynamic contrast- enhanced magnetic resonance tomography (DCE-MRT) for the visualization and quantification of blood flow of lower leg muscles at rest and after individually adjusted muscular exercise. PATIENTS AND METHODS: Five cases were chosen to exemplify the qualitative and semi-quantitative blood flow evaluation in the lower leg muscles. The crural muscle state was determined with an isometric maximal strength measurement from a female patient with peripheral arterial occlusive disease (pAVK), a male patient with coronary heart disease (KHK) without clinical signs of a pAVK, a volunteer with sufficient physical activity in accordance with the Freiburg Questionnaire of Physical Activity and two professional athletes...
February 2004: Herz
https://www.readbyqxmd.com/read/12365275/sex-differences-in-performance-on-three-novel-continuous-response-tasks
#15
Peter Klavora, John G Esposito
The Dynavision apparatus was used to assess psychomotor differences between men and women first-time users. Subjects, 50 men and 76 women, were tested on three 60-sec. Dynavision response tasks of graded difficulty. An analysis of variance with repeated measures indicated that men performed significantly better than women on all tasks. Performances on all tasks were also significantly different from each other within both sexes (p < or = .05). Furthermore, a significant interaction between sex and task was based on a greater drop in performance on the most complex task for women than for men...
August 2002: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/10857509/driving-skills-in-elderly-persons-with-stroke-comparison-of-two-new-assessment-options
#16
COMPARATIVE STUDY
P Klavora, R J Heslegrave, M Young
OBJECTIVE: To compare the effectiveness of two methods of assessing off-road driving skills that claim to predict on-road driving fitness of persons with stroke. METHOD: Fifty-six persons with stroke (age 44 to 82 yrs; mean, 60.2 yrs) completed the 2 off-road driving assessments along with standard clinical and on-road driving tests. MAIN OUTCOME MEASURES: Linear stepwise regression on 4 variables of the Dynavision Performance Assessment Battery (DPAB), the Cognitive Behavioral Driver's Inventory (CBDI) variable (composite score), and the variables of age, gender, and lesion side...
June 2000: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/9530706/rehabilitation-of-visuomotor-skills-in-poststroke-patients-using-the-dynavision-apparatus
#17
REVIEW
P Klavora, M Warren
The Dynavision is a new apparatus that may help address some of the limitations inherent in conventional approaches to rehabilitation of visual skills of persons suffering from neurological dysfunction. Here the basic features of the apparatus are described, an overview of preliminary experimental evidence for its effectiveness in rehabilitation presented and application in the training of compensatory scanning strategies for visual inattention and visual-field deficits and in the increasing of oculomotor control outlined...
February 1998: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/7808882/test-retest-reliability-of-the-dynavision-apparatus
#18
P Klavora, P Gaskovski, R Forsyth
No abstract text is available yet for this article.
August 1994: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/7675601/test-retest-reliability-of-three-dynavision-tasks
#19
RANDOMIZED CONTROLLED TRIAL
P Klavora, P Gaskovski, R D Forsyth
The test-retest reliability of three Dynavision tasks of graded difficulty was estimated as high, with intraclass R correlation coefficients ranging from .88 to .97, and paired correlation coefficients ranging from .74 to .92. Recommendations are made for reliable testing procedures.
April 1995: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/7645666/the-effects-of-dynavision-rehabilitation-on-behind-the-wheel-driving-ability-and-selected-psychomotor-abilities-of-persons-after-stroke
#20
P Klavora, P Gaskovski, K Martin, R D Forsyth, R J Heslegrave, M Young, R P Quinn
OBJECTIVE: Many conventional rehabilitation exercises, such as pencil-and-paper and computer tasks, may not train perceptual and motor skills as applied to a complex, multiskill activity such as driving. The present study examined the usefulness of the Dynavision apparatus for driving-related rehabilitation. The Dynavision was designed to train visual scanning, peripheral visual awareness, visual attention, and visual-motor reaction time across a broad, active visual field. METHOD: Ten persons with a cerebrovascular accident participated in the study...
June 1995: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
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