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Movement patterns

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https://www.readbyqxmd.com/read/28920556/the-effects-of-limb-dominance-and-a-short-term-high-intensity-exercise-protocol-on-both-landings-of-the-vertical-drop-jump-implications-for-the-vertical-drop-jump-as-a-screening-tool
#1
Enda F Whyte, Patrick Kennelly, Oliver Milton, Chris Richter, Siobhán O'Connor, Kieran A Moran
The effectiveness of vertical drop jumps (VDJs) to screen for non-contact ACL injuries is unclear. This may be contributed to by discrete point analysis, which does not evaluate patterns of movement. Also, limited research exists on the second landing of VDJs, potential lower limb performance asymmetries and the effect of fatigue. Statistical parametric mapping investigated the main effects of landing, limb dominance and a high intensity, intermittent exercise protocol (HIIP) on VDJ biomechanics. Twenty-two male athletes (21...
September 18, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28920545/median-nerve-movement-in-the-carpal-tunnel-before-and-after-carpal-tunnel-release-using-transverse-ultrasound
#2
Mitsuhiko Nanno, Norie Kodera, Yuji Tomori, Yusuke Hagiwara, Shinro Takai
PURPOSE: We aimed to compare the movement of the median nerve within the carpal tunnel during wrist and finger motions between before and after carpal tunnel release (CTR) using transverse ultrasound in carpal tunnel syndrome (CTS) patients and to evaluate the biomechanical efficacy of CTR for CTS. METHODS: Twenty-four patients with CTS were examined by transverse ultrasound. The location of the median nerve within the carpal tunnel was examined quantitatively as a coordinate at varied wrist positions with finger extension and flexion, respectively, before and after CTR...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28919975/mild-cognitive-impairment-in-parkinson-s-disease-a-distinct-clinical-entity
#3
REVIEW
Ming-Ching Wen, Ling Ling Chan, Louis C S Tan, Eng King Tan
BACKGROUND: Mild cognitive impairment in Parkinson's disease (PD-MCI) is a common clinical condition. Understanding its pathology and clinical features is important for early intervention before the onset of dementia. In the past, variable definitions and differences in neuropsychological batteries generated divergent results of the affected cognitive patterns. MAIN BODY: The introduction of PD-MCI criteria by the Movement Disorders Society (MDS) Task Force provides a more uniform system for defining and measuring PD-MCI and may improve the validity of future research...
2017: Translational Neurodegeneration
https://www.readbyqxmd.com/read/28919480/cholesterol-modulates-the-cellular-localization-of-orai1-channels-and-its-disposition-among-membrane-domains
#4
A Bohórquez-Hernández, Enrico Gratton, Jonathan Pacheco, Alexander Asanov, Luis Vaca
Store Operated Calcium Entry (SOCE) is one of the most important mechanisms for calcium mobilization in to the cell. Two main proteins sustain SOCE: STIM1 that acts as the calcium sensor in the endoplasmic reticulum (ER) and Orai1 responsible for calcium influx upon depletion of ER. There are many studies indicating that SOCE is modulated by the cholesterol content of the plasma membrane (PM). However, a myriad of questions remain unanswered concerning the precise molecular mechanism by which cholesterol modulates SOCE...
September 12, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28917168/occurrence-and-distribution-of-microplastics-at-selected-coastal-sites-along-the-southeastern-united-states
#5
Xubiao Yu, Samantha Ladewig, Shaowu Bao, Catherine A Toline, Stefanie Whitmire, Alex T Chow
To investigate the occurrence and distribution of microplastics in the southeastern coastal region of the United States, we quantified the amount of microplastics in sand samples from multiple coastal sites and developed a predictive model to understand the drift of plastics via ocean currents. Sand samples from eighteen National Park Service (NPS) beaches in the Southeastern Region were collected and microplastics were isolated from each sample. Microplastic counts were compared among sites and local geography was used to make inferences about sources and modes of distribution...
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28917133/waiting-for-lexical-access-cochlear-implants-or-severely-degraded-input-lead-listeners-to-process-speech-less-incrementally
#6
Bob McMurray, Ashley Farris-Trimble, Hannah Rigler
Spoken language unfolds over time. Consequently, there are brief periods of ambiguity, when incomplete input can match many possible words. Typical listeners solve this problem by immediately activating multiple candidates which compete for recognition. In two experiments using the visual world paradigm, we examined real-time lexical competition in prelingually deaf cochlear implant (CI) users, and normal hearing (NH) adults listening to severely degraded speech. In Experiment 1, adolescent CI users and NH controls matched spoken words to arrays of pictures including pictures of the target word and phonological competitors...
September 13, 2017: Cognition
https://www.readbyqxmd.com/read/28914733/metabolic-connectivity-methods-and-applications
#7
Igor Yakushev, Alexander Drzezga, Christian Habeck
PURPOSE OF REVIEW: Metabolic connectivity modelling aims to detect functionally interacting brain regions based on PET recordings with the glucose analogue [F]fluorodeoxyglucose (FDG). Here, we outline the most popular metabolic connectivity methods and summarize recent applications in clinical and basic neuroscience. RECENT FINDINGS: Metabolic connectivity is modelled by various methods including a seed correlation, sparse inverse covariance estimation, independent component analysis and graph theory...
September 13, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28914358/dynamic-foraging-of-a-top-predator-in-a-seasonal-polar-marine-environment
#8
Ben G Weinstein, Ari S Friedlaender
The seasonal movement of animals at broad spatial scales provides insight into life-history, ecology and conservation. By combining high-resolution satellite-tagged data with hierarchical Bayesian movement models, we can associate spatial patterns of movement with marine animal behavior. We used a multi-state mixture model to describe humpback whale traveling and area-restricted search states as they forage along the West Antarctic Peninsula. We estimated the change in the geography, composition and characteristics of these behavioral states through time...
September 15, 2017: Oecologia
https://www.readbyqxmd.com/read/28913175/regulation-of-endoplasmic-reticulum-mitochondria-ca-2-transfer-and-its-importance-for-anti-cancer-therapies
#9
REVIEW
Gaia Pedriali, Alessandro Rimessi, Luigi Sbano, Carlotta Giorgi, Mariusz R Wieckowski, Maurizio Previati, Paolo Pinton
Inter-organelle membrane contact sites are emerging as major sites for the regulation of intracellular Ca(2+) concentration and distribution. Here, extracellular stimuli operate on a wide array of channels, pumps, and ion exchangers to redistribute intracellular Ca(2+) among several compartments. The resulting highly defined spatial and temporal patterns of Ca(2+) movement can be used to elicit specific cellular responses, including cell proliferation, migration, or death. Plasma membrane (PM) also can directly contact mitochondria and endoplasmic reticulum (ER) through caveolae, small invaginations of the PM that ensure inter-organelle contacts, and can contribute to the regulation of numerous cellular functions through scaffolding proteins such as caveolins...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28912947/friction-massage-versus-kinesiotaping-for-short-term-management-of-latent-trigger-points-in-the-upper-trapezius-a-randomized-controlled-trial
#10
Marzieh Mohamadi, Soraya Piroozi, Iman Rashidi, Saeed Hosseinifard
BACKGROUND: Latent trigger points in the upper trapezius muscle may disrupt muscle movement patterns and cause problems such as cramping and decreased muscle strength. Because latent trigger points may spontaneously become active trigger points, they should be addressed and treated to prevent further problems. In this study we compared the short-term effect of kinesiotaping versus friction massage on latent trigger points in the upper trapezius muscle. METHODS: Fifty-eight male students enrolled with a stratified sampling method participated in this single-blind randomized clinical trial (Registration ID: IRCT2016080126674N3) in 2016...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/28912155/visual-motion-discrimination-by-propagating-patterns-in-primate-cerebral-cortex
#11
Rory Townsend, Selina S Solomon, Paul R Martin, Samuel G Solomon, Pulin Gong
Visual stimuli can evoke waves of neural activity that propagate across the surface of visual cortical areas. The relevance of these waves for visual processing is unknown. Here we measured the phase and amplitude of local field potentials (LFPs) in electrode array recordings from motion-processing medial temporal area (MT) of anesthetized male marmosets. Animals viewed grating or dot-field stimuli drifting in different directions. We found that on individual trials, the direction of LFP wave propagation is sensitive to the direction of stimulus motion...
September 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28910914/-changes-to-sleep-patterns-in-young-migrants-at-high-altitude
#12
Z D Ha, K L Pan, X L Jian, J P Luo, S Q Guan, W W Guo
Objective: To explore the relationship between the level of acclimatization and the changes to sleep architecture in migrants at high altitude. Methods: Nocturnal sleep recordings of 50 subjects aged between 18 and 25 years [mean age (20.9±2.0) years] were analyzed. Those young volunteers were divided into 3 700 m-3 m group(n=10, migrated to an altitude of 3 700 metres for 3 months), 3 700 m-1 y group(n=10, for 1 year) , 5 380 m-3 m group(n=8), 5 380 m-1 y group(n=9), and compared with a control group(n=13, at 1 400 m altitude)...
September 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28910654/kinect-based-assessment-of-lower-limb-kinematics-and-dynamic-postural-control-during-the-star-excursion-balance-test
#13
Moataz Eltoukhy, Christopher Kuenze, Jeonghoon Oh, Savannah Wooten, Joseph Signorile
Assessments using dynamic postural control tests, like the Star Excursion Balance Test (SEBT), in combination with three-dimensional (3D) motion analysis can yield critical information regarding a subject's lower limb movement patterns. 3D analysis can provide a clear understanding of the mechanisms that lead to specific outcome measures on the SEBT. Currently, the only technology for 3D motion analysis during such tests is expensive marker-based motion analysis systems, which are impractical for use in clinical settings...
September 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28910236/quantitative-responses-of-adult-zebrafish-to-changes-in-ambient-illumination
#14
Enhua Shao, Qing Bai, Yangzhong Zhou, Edward A Burton
The use of zebrafish models to study central nervous system aging and late-onset neurological diseases will be facilitated by assays allowing rapid evaluation of neurological phenotypes in adult zebrafish. We analyzed groups of 12 adult zebrafish swimming simultaneously in single-animal arenas, and quantified their responses to changes in ambient illumination. Under these conditions, stereotypical locomotor patterns were observed and readily quantified using open source software. Continuous, low-velocity movements were observed during 10-min periods of darkness, whereas intermittent high-velocity movements occurred in bright light...
September 14, 2017: Zebrafish
https://www.readbyqxmd.com/read/28906030/pathological-and-immunoblot-analysis-of-phosphorylated-tdp-43-in-sporadic-amyotrophic-lateral-sclerosis-with-pallido-nigro-luysian-degeneration
#15
Akiko Uchino, Mieko Ogino, Junko Takahashi-Fujigasaki, Saori Oonuma, Naomi Kanazawa, Sabine Kajita, Masaaki Ichinoe, Masato Hasegawa, Kazutoshi Nishiyama, Shigeo Murayama
Transactivation response DNA-binding protein 43 kDa (TDP-43) is a key protein of sporadic amyotrophic lateral sclerosis (ALS), and phosphorylated form of TDP-43 (p-TDP-43) is a major pathological protein that accumulates in sporadic ALS. p-TDP-43 is found not only in primary motor neurons, but often propagates to non-motor systems as well. However, pallido-nigro-luysian (PNL) degeneration (PNLD) is rarely associated with ALS. We describe here a 68-year-old ALS patient presenting severe PNLD. He had difficulty walking due to poor movement of his right leg, and was diagnosed as having Parkinson's disease because of akinesia...
September 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28904779/discriminating-patterns-and-drivers-of-multiscale-movement-in-herpetofauna-the-dynamic-and-changing-environment-of-the-mojave-desert-tortoise
#16
Giancarlo Sadoti, Miranda E Gray, Matthew L Farnsworth, Brett G Dickson
Changes to animal movement in response to human-induced changes to the environment are of growing concern in conservation. Most research on this problem has focused on terrestrial endotherms, but changes to herpetofaunal movement are also of concern given their limited dispersal abilities and specialized thermophysiological requirements. Animals in the desert region of the southwestern United States are faced with environmental alterations driven by development (e.g., solar energy facilities) and climate change...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28903010/effect-of-loading-on-in-vivo-tibiofemoral-and-patellofemoral-kinematics-of-healthy-and-acl-reconstructed-knees
#17
Jarred M Kaiser, Michael F Vignos, Richard Kijowski, Geoffrey Baer, Darryl G Thelen
BACKGROUND: Although knees that have undergone anterior cruciate ligament reconstruction (ACLR) often exhibit normal laxity on clinical examination, abnormal kinematic patterns have been observed when the joint is dynamically loaded during whole body activity. This study investigated whether abnormal knee kinematics arise with loading under isolated dynamic movements. HYPOTHESIS: Tibiofemoral and patellofemoral kinematics of ACLR knees will be similar to those of the contralateral uninjured control knee during passive flexion-extension, with bilateral differences emerging when an inertial load is applied...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28901976/determinants-of-short-term-movement-in-a-developing-region-and-implications-for-disease-transmission
#18
Alicia N M Kraay, James Trostle, Andrew F Brouwer, William C Trujillo, Joseph N S Eisenberg
BACKGROUND: Human mobility is important for infectious disease spread. However, little is known about how travel varies by demographic groups and how this heterogeneity influences infectious disease risk. METHODS: We analyzed ten years of survey data from 15 communities in a remote but rapidly changing region in rural Ecuador where road development in the past 15-20 years has dramatically changed travel. We identify determinants of travel and incorporate them into an infection transmission model...
September 7, 2017: Epidemiology
https://www.readbyqxmd.com/read/28901595/movement-disorders-in-genetically-confirmed-mitochondrial-disease-and-the-putative-role-of-the-cerebellum
#19
Sebastian R Schreglmann, Franz Riederer, Marian Galovic, Christos Ganos, Georg Kägi, Daniel Waldvogel, Zane Jaunmuktane, Andre Schaller, Ute Hidding, Ernst Krasemann, Lars Michels, Christian R Baumann, Kailash Bhatia, Hans H Jung
BACKGROUND: Mitochondrial disease can present as a movement disorder. Data on this entity's epidemiology, genetics, and underlying pathophysiology, however, is scarce. OBJECTIVE: The objective of this study was to describe the clinical, genetic, and volumetric imaging data from patients with mitochondrial disease who presented with movement disorders. METHODS: In this retrospective analysis of all genetically confirmed mitochondrial disease cases from three centers (n = 50), the prevalence and clinical presentation of video-documented movement disorders was assessed...
September 13, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28901049/arousal-responses-to-respiratory-events-during-sleep-the-role-of-pulse-wave-amplitude
#20
Marcello Bosi, Giulia Milioli, Silvia Riccardi, Andrea Melpignano, Anna E Vaudano, Pietro Cortelli, Venerino Poletti, Liborio Parrino
The study aims at assessing the changes in electroencephalography (as measured by the A-phases of cyclic alternating pattern) and autonomic activity (based on pulse wave amplitude) at the recovery of airway patency in patients with obstructive sleep apnea syndrome. Analysis of polysomnographic recordings from 20 male individuals with obstructive sleep apnea syndrome was carried out in total sleep time, non-rapid eye movement and rapid eye movement sleep. Scoring quantified the combined occurrence (time range of 4 s before and 4 s after respiratory recovery) or separate occurrence of A-phases (cortical activation), and pulse wave amplitude drops (below 30%) to apneas, hypopneas or flow limitation events...
September 12, 2017: Journal of Sleep Research
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