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https://www.readbyqxmd.com/read/28454071/increased-gait-variability-may-not-imply-impaired-stride-to-stride-control-of-walking-in-healthy-older-adults-winner-2013-gait-and-clinical-movement-analysis-society-best-paper-award
#1
Jonathan B Dingwell, Mandy M Salinas, Joseph P Cusumano
Older adults exhibit increased gait variability that is associated with fall history and predicts future falls. It is not known to what extent this increased variability results from increased physiological noise versus a decreased ability to regulate walking movements. To "walk", a person must move a finite distance in finite time, making stride length (Ln) and time (Tn) the fundamental stride variables to define forward walking. Multiple age-related physiological changes increase neuromotor noise, increasing gait variability...
March 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28449077/executive-network-activation-is-linked-to-walking-speed-in-older-adults-functional-mri-and-tcd-ultrasound-evidence-from-the-mobilize-boston-study
#2
Azizah J Jor'dan, Victoria N Poole, Ikechukwu Iloputaife, William Milberg, Brad Manor, Michael Esterman, Lewis A Lipsitz
Background: Changes in cerebral blood flow velocity (CBF) in response to a cognitive task (task-related ΔCBF) have been shown by Transcranial Doppler ultrasonography (TCD) to be reduced in slow walkers. However, it is unknown whether reduced task-related ΔCBF is associated with reduced neural activity in specific brain regions, as measured by blood-oxygen-level dependent (BOLD) functional magnetic resonance imaging (fMRI). Methods: We assessed the regional changes in neural activity associated with reduced middle cerebral artery (MCA) task-related ΔCBF to an executive task and slow walking speed in 67 community-dwelling older adults from the MOBILIZE Boston Study...
April 26, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28448584/sarcopenia-in-patients-with-chronic-kidney-disease-not-yet-on-dialysis-analysis-of-the-prevalence-and-associated-factors
#3
Viviane Angelina de Souza, Dílmerson Oliveira, Sérgio Ribeiro Barbosa, José Otávio do Amaral Corrêa, Fernando Antônio Basile Colugnati, Henrique Novais Mansur, Natália Maria da Silva Fernandes, Marcus Gomes Bastos
INTRODUCTION: Sarcopenia is a chronic condition that is associated with aging and characterized by a reduction of muscle mass, strength, and function. Sarcopenia is prevalent in patients with chronic kidney disease (CKD) and associated with increased morbidity and mortality, as well as cardiovascular complications. OBJECTIVES: To investigate the prevalence of sarcopenia in patients with CKD not yet on dialysis and its correlation with clinical and laboratory variables and inflammatory markers...
2017: PloS One
https://www.readbyqxmd.com/read/28445855/speed-dependent-effects-of-laterally-wedged-insoles-on-gait-biomechanics-in-healthy-subjects
#4
Felix Kluge, Sebastian Krinner, Matthias Lochmann, Bjoern M Eskofier
Laterally wedged insoles have been shown to be effective for the reduction of the knee adduction moment and other biomechanical variables that are associated with the pathogenesis of knee osteoarthritis. However, inconclusive results such as adverse effects in individual subjects or even no group-wise wedge effects have been presented in different studies and it has been suggested to identify variables that potentially confound the wedge effect. The main objective of this study was the investigation of interaction effects of lateral wedges with walking speed, as different self-selected speeds have mainly been used in previous studies...
April 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28445709/gait-analysis-and-weight-bearing-in-pre-clinical-joint-pain-research
#5
Kristina Ängeby Möller, Heta Svärd, Anni Suominen, Jarmo Immonen, Johanna Holappa, Carina Stenfors
BACKGROUND: There is a need for better joint pain treatment, but development of new medication has not been successful. Pre-clinical models with readouts that better reflect the clinical situation are needed. In patients with joint pain, pain at rest and pain at walking are two major complaints. NEW METHOD: We describe a new way of calculating results from gait analysis using the CatWalk™ setup. Rats with monoarthritis induced by injection of Complete Freund's Adjuvant (CFA) intra-articularly into the ankle joint of one hind limb were used to assess gait and dynamic weight bearing...
April 23, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28444104/psychomotor-ability-and-short-term-memory-and-reading-and-mathematics-achievement-in-children
#6
Cherée Murrihy, Maria Bailey, John Roodenburg
Objective: The aim of our study was to examine whether the findings from previous research, indicating the role of short-term memory as a mediator of the relationship between motor coordination and academic achievement in adolescents, is also evident in a younger child population. Method: The study utilized a quantative cross-sectional design involving 133 children aged 8-12. The McCarron Assessment of Neuromuscular Development (MAND) provided four indicators of psychomotor ability (Finger Nose, Walking, Balancing, and Jumping)...
April 24, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28441748/convergent-validity-of-a-wearable-sensor-system-for-measuring-sub-task-performance-during-the-timed-up-and-go-test
#7
James Beyea, Chris A McGibbon, Andrew Sexton, Jeremy Noble, Colleen O'Connell
BACKGROUND: The timed-up-and-go test (TUG) is one of the most commonly used tests of physical function in clinical practice and for research outcomes. Inertial sensors have been used to parse the TUG test into its composite phases (rising, walking, turning, etc.), but have not validated this approach against an optoelectronic gold-standard, and to our knowledge no studies have published the minimal detectable change of these measurements. METHODS: Eleven adults performed the TUG three times each under normal and slow walking conditions, and 3 m and 5 m walking distances, in a 12-camera motion analysis laboratory...
April 23, 2017: Sensors
https://www.readbyqxmd.com/read/28441054/biomechanical-and-histologic-evaluation-of-the-effects-of-underwater-treadmill-exercise-on-horses-with-experimentally-induced-osteoarthritis-of-the-middle-carpal-joint
#8
Melissa R King, Kevin K Haussler, Chris E Kawcak, C Wayne McIlwraith, Raoul F Reiser, David D Frisbie, Natasha M Werpy
OBJECTIVE To evaluate the effects of exercise in an underwater treadmill (UWT) on forelimb biomechanics and articular histologic outcomes in horses with experimentally induced osteoarthritis of the middle carpal joint. ANIMALS 16 horses. PROCEDURES An osteochondral fragment was induced arthroscopically (day 0) in 1 middle carpal joint of each horse. Beginning on day 15, horses were assigned to exercise in a UWT or in the UWT without water (simulating controlled hand walking) at the same speed, frequency, and duration...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28439103/brain-age-predicts-mortality
#9
J H Cole, S J Ritchie, M E Bastin, M C Valdés Hernández, S Muñoz Maniega, N Royle, J Corley, A Pattie, S E Harris, Q Zhang, N R Wray, P Redmond, R E Marioni, J M Starr, S R Cox, J M Wardlaw, D J Sharp, I J Deary
Age-associated disease and disability are placing a growing burden on society. However, ageing does not affect people uniformly. Hence, markers of the underlying biological ageing process are needed to help identify people at increased risk of age-associated physical and cognitive impairments and ultimately, death. Here, we present such a biomarker, 'brain-predicted age', derived using structural neuroimaging. Brain-predicted age was calculated using machine-learning analysis, trained on neuroimaging data from a large healthy reference sample (N=2001), then tested in the Lothian Birth Cohort 1936 (N=669), to determine relationships with age-associated functional measures and mortality...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28437567/people-with-patellofemoral-oa-walk-with-different-pelvic-and-hip-kinematics-compared-to-healthy-aged-matched-controls
#10
Kay M Crossley, Anthony G Schache, Hannah Ozturk, Jonathan Lentzos, Melissa Munanto, Marcus G Pandy
Objective, Patellofemoral joint (PFJ) osteoarthritis (OA) is common, yet little is known about how this condition influences lower-limb biomechanical function. This study compared pelvis and lower-limb kinematics in people with and without PFJOA., Methods, Sixty-nine participants (64% women, mean age 56±10 years) with anterior knee pain aggravated by PFJ loaded activities (stair ambulation, rising from sitting, squatting) and radiographic lateral PFJOA on skyline radiographs were compared with 18 controls (78% women, mean age 53±7 years) with no lower-limb pain or radiographic OA...
April 24, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28433867/validity-and-repeatability-of-inertial-measurement-units-for-measuring-gait-parameters
#11
Edward P Washabaugh, Tarun Kalyanaraman, Peter G Adamczyk, Edward S Claflin, Chandramouli Krishnan
Inertial measurement units (IMUs) are small wearable sensors that have tremendous potential to be applied to clinical gait analysis. They allow objective evaluation of gait and movement disorders outside the clinic and research laboratory, and permit evaluation on large numbers of steps. However, repeatability and validity data of these systems are sparse for gait metrics. The purpose of this study was to determine the validity and between-day repeatability of spatiotemporal metrics (gait speed, stance percent, swing percent, gait cycle time, stride length, cadence, and step duration) as measured with the APDM Opal IMUs and Mobility Lab system...
April 12, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28432883/sagittal-plane-joint-kinetics-during-stair-ascent-in-patients-with-peripheral-arterial-disease-and-intermittent-claudication
#12
Stephanie L King, Natalie Vanicek, Thomas D O'Brien
Stair negotiation poses a substantial physical demand on the musculoskeletal system and this challenging task can place individuals at risk of falls. Peripheral arterial disease (PAD) can cause intermittent claudication (IC) pain in the calf and results in altered gait mechanics during level walking. However, whether those with PAD-IC adopt alternate strategies to climb stairs is unknown. Twelve participants with PAD-IC (six bilateral and six unilateral) and 10 healthy controls were recruited and instructed to ascend a five-step staircase whilst 3D kinematic data of the lower-limbs were recorded synchronously with kinetic data from force plates embedded into the staircase on steps two and three...
March 28, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28430704/functional-effects-of-treadmill-based-gait-training-at-faster-speeds-in-stroke-survivors-a-prospective-single-group-study
#13
Roghayeh Mohammadi, Navid Ershad, Marziyeh Rezayinejad, Elham Fatemi, Chetan P Phadke
To examine the functional effects of walking retraining at faster than self-selected speed (SSS). Ten individuals with chronic stroke participated in a 4-week training over a treadmill at walking speeds 40% faster than SSS, three times per week, 30 min/session. Outcome measures assessed before, after, and 2 months after the end of intervention were the Timed Up and Go, the 6-Minute Walk, the 10-Meter Walk test, the Modified Ashworth Scale, SSS, and fastest comfortable speed. After 4 weeks of training, all outcome measures showed clinically meaningful and statistically significant improvements (P<0...
April 20, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/28427925/effect-of-home-and-community-based-physical-activity-interventions-on-physical-function-among-cancer-survivors-a-systematic-review-and-meta-analysis
#14
REVIEW
Maria C Swartz, Zakkoyya H Lewis, Elizabeth J Lyons, Kristofer Jennings, Addie Middleton, Rachel R Deer, Demi Arnold, Kaitlin Dresser, Kenneth J Ottenbacher, James S Goodwin
OBJECTIVE: We reviewed randomized trials to examine the effect of home and community-based physical activity interventions on physical functioning among cancer survivors based on the most prevalent physical function measures. DATA SOURCES: Five electronic databases-Medline Ovid, Pubmed, CINAHL, Web of Science, and PsychINFO-were searched from inception to March 2016 for relevant articles. STUDY SELECTION: Search terms included: community-based interventions, physical functioning, and cancer survivors...
April 17, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28427700/effects-of-functional-electrical-stimulation-on-gait-in-people-with-multiple-sclerosis-a-systematic-review
#15
REVIEW
Shmuel Springer, Sam Khamis
BACKGROUND: Functional electrical stimulation (FES) is commonly used to ameliorate gait deficits in patients with multiple sclerosis (PwMS). This review critically evaluates the literature describing the orthotic and therapeutic effects of FES on gait in PwMS. METHODS: The PubMed, CINAHL, and ProQuest databases were searched. Included were studies that evaluated therapeutic and/or orthotic effects of FES in PwMS with at least one outcome measure related to gait...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28427422/differences-in-muscle-activity-and-temporal-step-parameters-between-lokomat-guided-walking-and-treadmill-walking-in-post-stroke-hemiparetic-patients-and-healthy-walkers
#16
Klaske van Kammen, Anne M Boonstra, Lucas H V van der Woude, Heleen A Reinders-Messelink, Rob den Otter
BACKGROUND: The Lokomat is a robotic exoskeleton that can be used to train gait function in hemiparetic stroke. To purposefully employ the Lokomat for training, it is important to understand (1) how Lokomat guided walking affects muscle activity following stroke and how these effects differ between patients and healthy walkers, (2) how abnormalities in the muscle activity of patients are modulated through Lokomat guided gait, and (3) how temporal step characteristics of patients were modulated during Lokomat guided walking...
April 20, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28424026/walking-ability-following-hybrid-assistive-limb-treatment-for-a-patient-with-chronic-myelopathy-after-surgery-for-cervical-ossification-of-the-posterior-longitudinal-ligament
#17
Shigeki Kubota, Tetsuya Abe, Hideki Kadone, Kengo Fujii, Yukiyo Shimizu, Aiki Marushima, Tomoyuki Ueno, Hiroaki Kawamoto, Yasushi Hada, Akira Matsumura, Yoshiyuki Sankai, Masashi Yamazaki
CONTEXT: The hybrid assistive limb (HAL) (the wearable robot) can assist kinesis during voluntary control of hip and knee joint motion by detecting the wearer's bioelectric signals on the surface of their skin. The purpose of this study was to report on walking ability following the wearable robot treatment in a patient with chronic myelopathy after surgery for cervical ossification of the posterior longitudinal ligament (OPLL). FINDINGS: The patient was a 66-year-old woman with cervical OPLL who was able to ambulate independently with the aid of bilateral crutches...
April 20, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28421180/usability-evaluations-of-a-wearable-inertial-sensing-system-and-quality-of-movement-metrics-for-stroke-survivors-by-care-professionals
#18
Bart Klaassen, Bert-Jan F van Beijnum, Jeremia P Held, Jasper Reenalda, Fokke B van Meulen, Peter H Veltink, Hermie J Hermens
BACKGROUND: Inertial motion capture systems are used in many applications such as measuring the movement quality in stroke survivors. The absence of clinical effectiveness and usability evidence in these assistive technologies into rehabilitation has delayed the transition of research into clinical practice. Recently, a new inertial motion capture system was developed in a project, called INTERACTION, to objectively measure the quality of movement (QoM) in stroke survivors during daily-life activity...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28420385/frontotemporal-dementia-as-a-comorbidity-to-idiopathic-normal-pressure-hydrocephalus-inph-a-short-review-of-literature-and-an-unusual-case
#19
REVIEW
V E Korhonen, E Solje, N M Suhonen, T Rauramaa, R Vanninen, A M Remes, V Leinonen
Behavioural variant frontotemporal dementia (bvFTD) and idiopathic normal pressure hydrocephalus (iNPH) are neurodegenerative diseases that can present with similar symptoms. These include decline in executive functions, psychomotor slowness, and behavioural and personality changes. Ventricular enlargement is a key radiological finding in iNPH that may also be present in bvFTD caused by the C9ORF72 expansion mutation. Due to this, bvFTD has been hypothesized as a potential comorbidity to iNPH but bvFTD patients have never been identified in studies focusing in clinical comorbidities with iNPH...
April 19, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/28416827/-comparison-of-the-effects-of-total-hip-arthroplasty-via-direct-anterior-approach-and-posterolateral-piriformis-sparing-approach
#20
J Xu, W D Zhuang, X W Li, G Y Yu, Y Lin, F Q Luo, Y H Xiao
OBJECTIVE: To compare the clinical effects of direct anterior approach (DAA) and posterolateral piriformis-sparing approach (Mis-PLA) for minimally invasive surgery of total hip arthroplasty. METHODS: The patients who had total hip arthroplasty from March 2015 to February 2016 were randomly divided into 2 groups: DAA group and Mis-PLA group. In the study, 43 patients (45 hips) were performed with total hip replacement via the direct anterior approach (DAA group)...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
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