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https://www.readbyqxmd.com/read/29330738/a-video-review-of-multiple-concussion-signs-in-national-rugby-league-match-play
#1
Andrew J Gardner, David R Howell, Grant L Iverson
BACKGROUND: Video review has been introduced in many professional sports worldwide to help recognize concussions. However, to date, there has been very little research on the accuracy of using video analysis to identify signs of concussion and the various combinations of observed signs. METHODS: The objective of the study is to determine the accuracy of combinations of clinical signs of concussion identified using video analysis to identify concussions in the National Rugby League (NRL)...
January 12, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29325901/dynamic-structure-of-lower-limb-joint-angles-during-walking-post-stroke
#2
Kelley Kempski, Louis N Awad, Thomas S Buchanan, Jill S Higginson, Brian A Knarr
BACKGROUND: Variability in joint kinematics is necessary for adaptability and response to everyday perturbations; however, intrinsic neuromotor changes secondary to stroke often cause abnormal movement patterns. How these abnormal movement patterns relate to joint kinematic variability and its influence on post-stroke walking impairments is not well understood. OBJECTIVE: The purpose of this study was to evaluate the movement variability at the individual joint level in the paretic and non-paretic limbs of individuals post-stroke...
December 15, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29324510/reliability-and-validity-of-computerized-force-platform-measures-of-balance-function-in-healthy-older-adults
#3
Cathy C Harro, Chelsea Garascia
BACKGROUND AND PURPOSE: Postural control declines with aging and is an independent risk factor for falls in older adults. Objective examination of balance function is warranted to direct fall prevention strategies. Force platform (FP) systems provide quantitative measures of postural control and analysis of different aspects of balance. The purpose of this study was to examine the reliability and validity of FP measures in healthy older adults. METHODS: This study enrolled 46 healthy elderly adults, mean age 67...
January 10, 2018: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29324509/investigating-the-relationship-of-the-functional-gait-assessment-to-spatiotemporal-parameters-of-gait-and-quality-of-life-of-individuals-with-stroke
#4
Richard Price, Nancy Low Choy
BACKGROUND AND PURPOSE: Walking in the community is an important aspect of independence and quality of life (QOL) that poses challenges for individuals with stroke. This study investigated whether performance on the Functional Gait Assessment (FGA) differentiated spatiotemporal gait parameters, QOL, and fall history of community-ambulating individuals with stroke. We hypothesized that those scoring higher on the FGA would present with better gait speed and cadence, stride width and length, and improved load time on the paretic limb, report a higher QOL, and be less likely to have a fall history than those who scored lower on the FGA...
January 10, 2018: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29315170/efficacy-of-tandem-gait-to-identify-impaired-postural-control-following-concussion
#5
Jessie R Oldham, Melissa S DiFabio, Thomas W Kaminski, Ryan M DeWolf, David R Howell, Thomas A Buckley
PURPOSE: The purpose was to evaluate tandem gait (TG), Balance Error Scoring System (BESS), and modified Balance Error Scoring System (mBESS) performance acutely post-concussion in collegiate student-athletes. Additionally, we sought to evaluate the psychometric properties of TG, including minimal detectable change (MDC), sensitivity, and specificity. METHODS: Seventy-six NCAA student-athletes performed TG and BESS tests: 38 acutely post-concussion and 38 controls...
January 8, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29313896/great-ape-walking-kinematics-implications-for-hominoid-evolution
#6
Emma M Finestone, Mary H Brown, Stephen R Ross, Herman Pontzer
OBJECTIVES: Great apes provide a point of reference for understanding the evolution of locomotion in hominoids and early hominins. We assessed (1) the extent to which great apes use diagonal sequence, diagonal couplet gaits, like other primates, (2) the extent to which gait and posture vary across great apes, and (3) the role of body mass and limb proportions on ape quadrupedal kinematics. METHODS: High-speed digital video of zoo-housed bonobos (Pan paniscus, N = 8), chimpanzees (Pan troglodytes, N = 13), lowland gorillas (Gorilla gorilla, N = 13), and orangutans (Pongo spp...
January 4, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29311518/impact-of-frailty-markers-for-unplanned-hospital-readmission-following-transcatheter-aortic-valve-implantation
#7
Mike Saji, Ryosuke Higuchi, Tetsuya Tobaru, Nobuo Iguchi, Shuichiro Takanashi, Morimasa Takayama, Mitsuaki Isobe
BACKGROUND: Various frailty markers have been developed to guide better patient selection for transcatheter aortic valve implantation (TAVI). This study aimed to investigate the frequency and specific causes of unplanned hospital readmission after TAVI, and to investigate which frailty markers better predicted outcomes.Methods and Results:We retrospectively reviewed 155 patients for whom we calculated their Short Physical-Performance Battery (SPPB), Placement of AoRTic TraNscathetER Valve (PARTNER) frailty scale, frailty index, clinical frailty scale, modified Fried scale, and gait speed...
December 29, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29310988/an-updated-diagnostic-approach-to-subtype-definition-of-vascular-parkinsonism-recommendations-from-an-expert-working-group
#8
REVIEW
Ivan Rektor, Nicolaas I Bohnen, Amos D Korczyn, Viktoria Gryb, Hrishikesh Kumar, Milica G Kramberger, Frank-Erik de Leeuw, Zvezdan Pirtošek, Irena Rektorová, Ilana Schlesinger, Jaroslaw Slawek, Peter Valkovič, Branislav Veselý
This expert working group report proposes an updated approach to subtype definition of vascular parkinsonism (VaP) based on a review of the existing literature. The persistent lack of consensus on clear terminology and inconsistent conceptual definition of VaP formed the impetus for the current expert recommendation report. The updated diagnostic approach intends to provide a comprehensive tool for clinical practice. The preamble for this initiative is that VaP can be diagnosed in individual patients with possible prognostic and therapeutic consequences and therefore should be recognized as a clinical entity...
December 29, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29306147/the-effect-of-simulated-leg-length-discrepancy-on-lower-limb-biomechanics-during-gait
#9
Sam Khamis, Eli Carmeli
Understanding the effects of leg length discrepancy (LLD) on the biomechanics of gait and determining as to what extent of LLD alters gait is essential. A total of 91 biomechanical data were assessed from 14 lower limbs of healthy individuals walking under random conditions: shod only and with a 5, 10, 15, 20, 30 and 40 mm sole lift. Lower limb kinematics and dynamic leg length (DLL) were measured by a motion capture system. Hotelling's T-Square test was used to evaluate the differences in DLLs throughout the gait cycle in conjunction with differences between the sides based on the maximal stance phase and minimal swing phase DLLs...
December 28, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29304432/the-largest-lyapunov-exponent-of-gait-in-young-and-elderly-individuals-a-systematic-review
#10
REVIEW
Sina Mehdizadeh
The largest Lyapunov exponent (LyE) is an accepted method to quantify gait stability in young and old adults. However, a range of LyE values has been reported in the literature for healthy young and elderly adults in normal walking. Therefore, it has been impractical to use the LyE as a clinical measure of gait stability. The aims of this systematic review were to summarize different methodological approaches of quantifying LyE, as well as to classify LyE values of different body segments and joints in young and elderly individuals during normal walking...
December 16, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29300849/analysis-of-free-living-gait-in-older-adults-with-and-without-parkinson-s-disease-and-with-and-without-a-history-of-falls-identifying-generic-and-disease-specific-characteristics
#11
Silvia Del Din, Brook Galna, Alan Godfrey, Esther Mj Bekkers, Elisa Pelosin, Freek Nieuwhof, Anat Mirelman, Jeffrey M Hausdorff, Lynn Rochester
Background: Falls are associated with gait impairments in older adults (OA) and Parkinson's disease (PD). Current approaches for evaluating falls risk are based on self-report or one-time assessment and may be suboptimal. Wearable technology allows gait to be measured continuously in free-living conditions. The aim of this study was to explore generic and specific associations in free-living gait in fallers and non-fallers with and without PD. Methods: 277 fallers (155 PD, 122 older adults (OA)) who fell twice or more in the previous 6 months and 65 non-fallers (15 PD, 50 OA) were tested...
December 30, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29300415/physical-performance-and-serum-25-oh-vitamin-d-status-in-community-dwelling-old-mobility-limited-adults-a-cross-sectional-study
#12
Å von Berens, T Cederholm, R A Fielding, T Gustafsson, D Kirn, J Laussen, M Nydahl, T G Travison, K Reid, A Koochek
OBJECTIVES: To examine the potential association between serum 25(OH) vitamin D and the performance on the Short Physical Performance Battery (SPPB) including the sub-components; five repeated chair stands test, 4 meters walk test and balance in older mobility-limited community-dwelling men and women. DESIGN: A cross sectional study was performed in American and Swedish subjects who were examined for potential participation in a combined exercise and nutrition intervention trial...
2018: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29297265/short-term-effects-of-binaural-beats-on-eeg-power-functional-connectivity-cognition-gait-and-anxiety-in-parkinson-s-disease
#13
Gerardo Gálvez, Manuel Recuero, Leonides Canuet, Francisco Del-Pozo
We applied rhythmic binaural sound to Parkinson's Disease (PD) patients to investigate its influence on several symptoms of this disease and on Electrophysiology (Electrocardiography and Electroencephalography (EEG)). We conducted a double-blind, randomized controlled study in which rhythmic binaural beats and control were administered over two randomized and counterbalanced sessions (within-subjects repeated-measures design). Patients ([Formula: see text], age [Formula: see text], stage I-III Hoehn & Yahr scale) participated in two sessions of sound stimulation for 10[Formula: see text]min separated by a minimum of 7 days...
November 13, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/29289916/a-novel-missense-mutation-of-the-gtp-cyclohydrolase-1-gene-in-a-taiwanese-family-with-dopa-responsive-dystonia-a-case-report
#14
Chen-Chih Yang, Wei-Chung Wang, Tu-Hsueh Yeh, Tzu-Hsuan Chen, Yen-Liang Liu, Ming-Kuei Lu, Chin-Song Lu, Chon-Haw Tsai
BACKGROUND: Dopa-responsive dystonia (DRD) is a clinical syndrome characterized by early onset dystonia and a dramatic response to relatively low doses of levodopa. The autosomal dominant DRD is caused by mutations in the gene coding GTP cyclohydrolase 1 (GCH1), the enzyme that catalyzes the first step in the biosynthesis of tetrahydrobiopterin. We herein report a novel gene mutation causally links to DRD. SUBJECT AND METHODS: A 23-year-old woman, presented with a history of gait abnormality and leg dystonia at age 15...
December 26, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29289028/experience-does-not-influence-injury-related-joint-kinematics-and-kinetics-in-distance-runners
#15
Cristine E Agresta, Jillian Peacock, Jeffrey Housner, Ronald F Zernicke, Jessica Deneweth Zendler
PURPOSE: Increased running experience and more time spent running appears to be advantageous in reducing injury risk, although the reason behind this is unclear. It is plausible that more experience results in better running mechanics leading to less injuries. Running mechanics are often screened during clinical assessments and targeted for correction in gait retraining, particularly those thought to be global indicators of injury or those associated with elevated knee joint loading. Examining the biomechanics of runners who are less-injury prone can improve our understanding of the significance of faulty running mechanics in relation to injury...
December 20, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29288044/task-difficulty-has-no-effect-on-haptic-anchoring-during-tandem-walking-in-young-and-older-adults
#16
Andréia Abud da Silva Costa, Luciana Oliveira Dos Santos, Eliane Mauerberg-deCastro, Renato Moraes
This study assessed the contribution of the "anchor system's" haptic information to balance control during walking at two levels of difficulty. Seventeen young adults and seventeen older adults performed 20 randomized trials of tandem walking in a straight line, on level ground and on a slightly-raised balance beam, both with and without the use of the anchors. The anchor consists of two flexible cables, whose ends participants hold in each hand, to which weights (125 g) are attached at the opposing ends, and which rest on the ground...
December 26, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29284544/comprehensive-measurement-of-stroke-gait-characteristics-with-a-single-accelerometer-in-the-laboratory-and-community-a-feasibility-validity-and-reliability-study
#17
Sarah A Moore, Aodhan Hickey, Sue Lord, Silvia Del Din, Alan Godfrey, Lynn Rochester
BACKGROUND: Application of objective measurement of stroke gait with accelerometer-based wearable technology and associated algorithms is increasing, despite reports questioning the accuracy of this technique in quantifying specific stroke-related gait impairments. The aim of this study is to determine the feasibility, validity and reliability of a low-cost open-source system incorporating algorithms and a single tri-axial accelerometer-based wearable to quantify gait characteristics in the laboratory and community post-stroke...
December 29, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/29284059/spatiotemporal-gait-characteristics-in-patients-with-copd-during-the-gait-real-time-analysis-interactive-lab-based-6-minute-walk-test
#18
Wai-Yan Liu, Martijn A Spruit, Jeannet M Delbressine, Paul J Willems, Frits M E Franssen, Emiel F M Wouters, Kenneth Meijer
BACKGROUND AND AIM: Overground gait assessment is limited by the analysis of multiple strides or both spatiotemporal gait characteristics, while fixed speed treadmill walking restricts natural gait speed variations. The Gait Real-time Analysis Interactive Lab (GRAIL)-based 6-minute walk test (6MWT) enables 3D motion analysis and self-paced treadmill walking, and could provide insight in gait alterations in patients with chronic obstructive pulmonary disease (COPD). The aim of this study is to compare spatiotemporal gait characteristics between patients with COPD and healthy elderly during the GRAIL-based 6MWT...
2017: PloS One
https://www.readbyqxmd.com/read/29282845/clusters-of-functional-domains-to-identify-older-persons-at-risk-of-disability
#19
Luisa Costanzo, Claudio Pedone, Matteo Cesari, Luigi Ferrucci, Stefania Bandinelli, Raffaele Antonelli Incalzi
AIM: To date, there is no consensus on which set of variables should be used to identify older persons at risk of disability in activities of daily living. The present study aimed to: (i) evaluate how different deficits cluster in a population of community-dwelling older persons; and (ii) investigate whether the discriminative capacity of physical performance measures towards the development of disability might be improved by adding psychological, social and environmental indicators. METHODS: Data are from 709 non-disabled older persons participating in the "Invecchiare in Chianti" study...
December 28, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/29281812/dynamic-joint-stiffness-of-the-ankle-in-healthy-and-rheumatoid-arthritis-post-menopausal-women
#20
Pedro Aleixo, José Vaz-Patto, Helena Moreira, João Abrantes
The purpose of this study was to compare rheumatoid arthritis post-menopausal women (RAPW) with pathological involvement of the lower limb joints and age-matched healthy post-menopausal women (AHPW) in regard to the dynamic joint stiffness of the ankle (DJSankle) during the stance phase of gait. Data were collected from 18 RAPW and 18 AHPW. Gait was assessed by a three-dimensional motion analysis system synchronised with a force plate. Subjects walked barefoot at natural and self-selected speed, performing 14 valid trials (comprising 7 left and 7 right foot-steps on a force plate)...
December 13, 2017: Gait & Posture
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