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https://www.readbyqxmd.com/read/28538514/long-term-outcome-of-4-patients-with-transcobalamin-deficiency-caused-by-2-novel-tcn2-mutations
#1
Marwan Nashabat, Gustavo Maegawa, Peter H Nissen, Ebba Nexo, Hussain Al-Shamrani, Mohammed Al-Owain, Majid Alfadhel
Cobalamin (vitamin B12 [Cbl]) is an essential cofactor for many biochemical pathways. Transcobalamin (TC) is required to internalize Cbl into the cells through membrane receptor-mediated endocytosis. Cbl is then processed in the cytoplasm and mitochondria by complementation factors leading to its active metabolites; methylcobalamin and 5-deoxyadenosyl-cobalamin. Deficiency of TC results in an elevation in methylmalonic acid and homocysteine. Patients usually present with macrocytic anemia, pancytopenia, failure to thrive, gastrointestinal symptoms, and neurological dysfunction...
May 22, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28537994/changes-in-gait-parameters-after-femoral-derotational-osteotomy-in-cerebral-palsy-patients-with-medial-femoral-torsion
#2
Ha Yong Kim, Yong Han Cha, Jae Yong Byun, Young Sub Chun, Won Sik Choy
Medial femoral torsion (MFT) is a common pathologic gait in cerebral palsy (CP) children that can be corrected by femoral derotational osteotomy (FDO). It is not clearly known as to how much various gait parameters change after FDO. The aim of this study was to quantify changes in gait parameters after FDO. The study group included 19 young CP patients (28 limbs, age<20 years, average age: 13.2 years) with symptomatic MFT, treated with distal FDO. The study group was divided into two groups: the unilateral FDO group (UG) and the bilateral FDO group (BG)...
May 19, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28535432/water-depth-effects-on-impact-loading-kinematic-and-physiological-variables-during-water-treadmill-running
#3
Paul W Macdermid, Josh Wharton, Carina Schill, Philip W Fink
PURPOSE: The purpose of this study was to compare impact loading, kinematic and physiological responses to three different immersion depths (mid-shin, mid-thigh, and xiphoid process) while running at the same speed on a water based treadmill. METHODS: Participants (N=8) ran on a water treadmill at three depths for 3min. Tri-axial accelerometers were used to identify running dynamics plus measures associated with impact loading rates, while heart rate data were logged to indicate physiological demand...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28534290/wear-predictions-for-uhmwpe-material-with-various-surface-properties-used-on-the-femoral-component-in-total-knee-arthroplasty-a-computational-simulation-study
#4
Kyoung-Tak Kang, Juhyun Son, Ho-Joong Kim, Changhyun Baek, Oh-Ryong Kwon, Yong-Gon Koh
The wear of ultrahigh-molecular weight polyethylene (UHMWPE) tibial inserts in total knee arthroplasty (TKA) remains a major limitation that hinders the longevity of clinically successful devices. Surface properties significantly affect the overall performance of TKA, and surface modification with mechanically and chemically stable materials is an effective method for overcoming the wear of TKA. However, wear tests are not cost-efficient or time-efficient; thus, the effects of geometric, loading, and alignment perturbations are often evaluated via parametric studies...
July 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28533981/effects-of-knee-sleeves-on-coordination-of-lower-limb-segments-in-healthy-adults-during-level-walking-and-one-leg-hopping
#5
Chang-Yong Ko, Yunhee Chang, Bora Jeong, Sungjae Kang, Jeicheong Ryu, Gyoosuk Kim
The evaluation of multisegment coordination is important in gaining a better understanding of the gait and physical activities in humans. Therefore, this study aims to verify whether the use of knee sleeves affects the coordination of lower-limb segments during level walking and one-leg hopping. Eleven healthy male adults participated in this study. They were asked to walk 10 m on a level ground and perform one-leg hops with and without a knee sleeve. The segment angles and the response velocities of the thigh, shank, and foot were measured and calculated by using a motion analysis system...
2017: PeerJ
https://www.readbyqxmd.com/read/28533700/risk-management-and-regulations-for-lower-limb-medical-exoskeletons-a-review
#6
REVIEW
Yongtian He, David Eguren, Trieu Phat Luu, Jose L Contreras-Vidal
Gait disability is a major health care problem worldwide. Powered exoskeletons have recently emerged as devices that can enable users with gait disabilities to ambulate in an upright posture, and potentially bring other clinical benefits. In 2014, the US Food and Drug Administration approved marketing of the ReWalk™ Personal Exoskeleton as a class II medical device with special controls. Since then, Indego™ and Ekso™ have also received regulatory approval. With similar trends worldwide, this industry is likely to grow rapidly...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/28533617/estimated-lower-speed-boundary-at-which-the-walk-ratio-constancy-is-broken-in-healthy-adults
#7
Rumi Murakami, Yohei Otaka
[Purpose] The ratio of step length to cadence (walk ratio) is invariant over a wide range of speeds. However, no studies have investigated details of the change in the walk ratio at slow speeds. It is necessary to explore how walking behavior changes at a low speed to understand the slow walking observed in various conditions such as aging and pathological conditions. In this study, changes in the walk ratio at slow speeds were investigated, and a lower boundary was estimated at which the walk ratio constancy is broken...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28533611/the-effect-of-horse-riding-simulator-exercise-on-the-gait-muscle-strength-and-muscle-activation-in-elderly-people-with-knee-osteoarthritis
#8
Seung-Kyu Kim, Seong-Gil Kim, Gak HwangBo
[Purpose] The aim of this study was to examine the effects of horse-riding simulator exercise on gait ability and muscle strength, muscle activation in elderly with knee osteoarthritis. [Subjects and Methods] Thirty elderly patients with knee osteoarthritis were recruited, a horse-riding simulator group consisted of fifteen subjects and they performed exercise three times a week for eight weeks. And each exercise was performed, horse riding simulator exercise for 15 minutes and knee strengthening exercise for 15 minutes...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28533609/gait-abnormalities-in-patients-with-chronic-ankle-instability-can-improve-following-a-non-invasive-biomechanical-therapy-a-retrospective-analysis
#9
Shay Tenenbaum, Ofir Chechik, Jason Bariteau, Nathan Bruck, Yiftah Beer, Mazen Falah, Ganit Segal, Amit Mor, Avi Elbaz
[Purpose] The purpose of this study was to evaluate the changes in gait patterns and clinical outcomes of patients with chronic ankle instability (CAI) following treatment with a home-based non-invasive biomechanical device. [Subjects and Methods] Thirty-three patients with CAI were compared with 43 healthy controls. Patients underwent a spatiotemporal gait assessment before and three months following treatment. Clinical evaluation was recorded with SF-36 Health Survey and the Foot and Ankle Outcome Score (FAOS)...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28533608/changes-of-gait-parameters-following-constrained-weight-shift-training-in-patients-with-stroke
#10
Seok Hyun Nam, Sung Min Son, Kyoung Kim
[Purpose] This study aimed to investigate the effects of training involving compelled weight shift on the paretic lower limb on gait parameters and plantar pressure distribution in patients with stroke. [Subjects and Methods] Forty-five stroke patients participated in the study and were randomly divided into: group with a 5-mm lift on the non-paretic side for constrained weight shift training (5: constrained weight shift training) (n=15); group with a 10-mm lift on the non-paretic side for constrained weight shift training (10: constrained weight shift training) (n=15); or the control group (n=15)...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28533603/comparison-of-accelerometer-based-and-treadmill-based-analysis-systems-for-measuring-gait-parameters-in-healthy-adults
#11
Seung-Yeop Lim, Wan-Hee Lee
[Purpose] This study aimed to determine the correlation between accelerometer-based and treadmill-based analysis systems for measuring gait parameters during comfortable walking in healthy young adults. [Subjects and Methods] Twenty-three healthy adults participated in this study. Gait parameters were measured with simultaneous use of accelerometer-based and treadmill-based gait analysis systems, while participants walked for 30 s. [Results] There was a highly-significant correlation between the two systems with respect to cadence and velocity...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28532887/the-influence-of-walking-aids-on-the-plasticity-of-spinal-interneuronal-networks-central-pattern-generators-and-the-recovery-of-gait-post-stroke-a-literature-review-and-scholarly-discussion
#12
REVIEW
Clare C Maguire, Judith M Sieben, Robert A de Bie
BACKGROUND: Many aspects of post-stroke gait-rehabilitation are based on low-level evidence or expert opinion. Neuroscientific principles are often not considered when evaluating the impact of interventions. The use of walking-aids including canes and rollators, although widely used for long periods, has primarily been investigated to assess the immediate kinetic, kinematic or physiological effects. The long-term impact on neural structures und functions remains unclear. METHODS: A literature review of the function of and factors affecting plasticity of spinal interneuronal-networks and central-pattern-generators (CPG) in healthy and post-stroke patients...
April 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28532873/the-impact-of-incline-and-speed-of-treadmill-on-ankle-muscle-activity-in-middle-aged-adults
#13
Roghayeh Mohammadi, Chetan P Phadke
OBJECTIVE: Additional demands associated with changing walking incline and speed combined with normal aging related changes in muscle recruitment can make walking difficult. This study examined the effects of walking on a treadmill at different inclines and speeds on ankle muscles in healthy middle-aged adults. METHODS: Fifteen healthy subjects (10M/5F) walked on a standard treadmill at three different inclines (0°, 3°, and 6°) and speeds (self-selected, self-selected+20%, self-selected+40%)...
April 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28532417/instrumented-balance-and-walking-assessments-in-persons-with-multiple-sclerosis-show-strong-test-retest-reliability
#14
Jordan J Craig, Adam P Bruetsch, Sharon G Lynch, Fay B Horak, Jessie M Huisinga
BACKGROUND: There is a need for objective movement assessment for clinical research trials aimed at improving gait and balance in persons with multiple sclerosis (PwMS). Wireless inertial sensors can accurately measure numerous walking and balance parameters but these measures require evaluation of reliability in PwMS. The current study determined the test-retest reliability of wireless inertial sensor measures obtained during an instrumented standing balance test and an instrumented Timed Up and Go test in PwMS...
May 22, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28531940/contusional-cerebellar-hemorrhage-related-to-placement-in-the-protrusion-position-after-atlantoaxial-fusion
#15
Yoshinari Miyaoka, Mikinobu Takeuchi, Norimitsu Wakao, Masahiro Aoyama, Kazuhiro Hongo, Masakazu Takayasu
BACKGROUND: Various complications after C1 lateral mass and C2 pedicle screw fusion surgery (C1LM-C2PSFS) have been reported. However, to our knowledge, this is the first report of contusional cerebellar hemorrhage caused by placement in the protrusion (chin-out) position after C1LM-2PSFS. CASE DESCRIPTION: An 81-year-old woman complaining of gait disturbance and clumsiness of both hands was diagnosed with cervical myelopathy with atlantoaxial subluxation. After we performed C1LM-C2PSFS, her neurologic deficits gradually improved, and there was no radiologic evidence of construct failure...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28531381/corrigendum-to-synovial-volume-vs-synovial-measurements-from-dynamic-contrast-enhanced-mri-as-measures-of-response-in-osteoarthritis-osteoarthritis-cartilage-24-2016-1392-1398
#16
A D Gait, R Hodgson, M J Parkes, C E Hutchinson, T W O'Neill, N Maricar, E J Marjanovic, T F Cootes, D T Felson
No abstract text is available yet for this article.
May 19, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28531306/association-of-long-term-opioid-therapy-with-functional-status-adverse-outcomes-and-mortality-among-patients-with-polyneuropathy
#17
E Matthew Hoffman, James C Watson, Jennifer St Sauver, Nathan P Staff, Christopher J Klein
Importance: Polyneuropathy is one of the most common painful conditions managed within general and specialty clinics. Neuropathic pain frequently leads to decisions about using long-term opioid therapy. Understanding the association of long-term opioid use with functional status, adverse outcomes, and mortality among patients with polyneuropathy could influence disease-specific decisions about opioid treatment. Objectives: To quantify the prevalence of long-term opioid use among patients with polyneuropathy and to assess the association of long-term opioid use with functional status, adverse outcomes, and mortality...
May 22, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28531171/no-relevant-association-of-kinematic-gait-parameters-with-health-related-quality-of-life-in-parkinson-s-disease
#18
Kristina Bettecken, Felix Bernhard, Jennifer Sartor, Markus A Hobert, Marc Hofmann, Till Gladow, Janet M T van Uem, Inga Liepelt-Scarfone, Walter Maetzler
BACKGROUND: Health-related Quality of Life (HrQoL) is probably the most important outcome parameter for the evaluation and management of chronic diseases. As this parameter is subjective and prone to bias, there is an urgent need to identify objective surrogate markers. Gait velocity has been shown to be associated with HrQoL in numerous chronic diseases, such as Parkinson's disease (PD). With the development and wide availability of simple-to-use wearable sensors and sophisticated gait algorithms, kinematic gait parameters may soon be implemented in clinical routine management...
2017: PloS One
https://www.readbyqxmd.com/read/28530503/comparison-of-self-selected-walking-speeds-and-walking-speed-variability-when-data-are-collected-during-repeated-discrete-trials-and-during-continuous-walking
#19
Marcus J Brown, Laura A Hutchinson, Michael J Rainbow, Kevin J Deluzio, Alan R De Asha
A typical gait analysis data collection consists of a series of discrete trials, where a participant initiates gait, walks through a motion capture volume, and then terminates gait. This is not a normal 'everyday' gait pattern, yet measurements are considered representative of normal walking. However, walking speed, a global descriptor of gait quality that can affect joint kinematics and kinetics, may be different during discrete trials, compared to continuous walking. Therefore, the purpose of this study was to investigate the effect of continuous walking versus discrete trials on walking speed and walking speed variability...
May 22, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28529730/effect-of-low-versus-high-frequency-stimulation-on-freezing-of-gait-and-other-axial-symptoms-in-parkinson-patients-with-bilateral-stn-dbs-a-mini-review
#20
REVIEW
Tao Xie, Mahesh Padmanaban, Lisa Bloom, Ellen MacCracken, Breanna Bertacchi, Abraham Dachman, Peter Warnke
Some studies have shown that low frequency stimulation (LFS, most commonly 60 Hz), compared to high frequency stimulation (HFS, most commonly 130 Hz), has beneficial effects, short-term or even long-term, on improving freezing of gait (FOG) and other axial symptoms, including speech and swallowing function, in Parkinson disease (PD) patients with bilateral subthalamic nucleus deep brain stimulation (STN DBS). However, other studies failed to confirm this. It seems not clear what determines the difference in response to LFS...
2017: Translational Neurodegeneration
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