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[PMID]: 29524909
[Au] Autor:Gillet B; Begon M; Diger M; Berger-Vachon C; Rogowski I
[Ad] Address:Univ Lyon-Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, LIBM EA7424, UFRSTAPS 27-29, Villeurbanne Cedex, France; Laboratoire de simulation et de modélisation du mouvement (S2M), Département de kinésiologie, Université de Montréal, Laval, Canada. Electr
[Ti] Title:Shoulder range of motion and strength in young competitive tennis players with and without history of shoulder problems.
[So] Source:Phys Ther Sport;31:22-28, 2018 Feb 02.
[Is] ISSN:1873-1600
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:OBJECTIVE: To assess the effect of a history of shoulder problems on the shoulder flexibility and strength in young competitive tennis players. DESIGN: Cross-sectional study. PARTICIPANTS: Ninety-one competitive and asymptomatic tennis players aged between 8 and 15 years old were divided into two groups according to the presence or absence of a history of shoulder problems. OUTCOME MEASURES: Glenohumeral joint ranges of motion and the strength of eight shoulder muscles were bilaterally assessed. Five agonist/antagonist muscle strength ratios were also reported. Ranges of motion, strengths and strength ratios were bilaterally compared between the two groups. RESULTS: Players with a history of shoulder problems presented a higher total arc of rotation for both glenohumeral joints (p = 0.02) and a lower external/internal glenohumeral rotator muscle strength ratio (p = 0.02) for both sides. They also presented stronger upper trapezius (p = 0.03) and dominant serratus anterior (p = 0.008) muscles than players without a history of shoulder problems. CONCLUSION: Having a history of shoulder problems may alter the balance between mobility and stability within the shoulder complex suggesting that particular attention should be given to dominant and non-dominant shoulder functions by coaches and clinicians.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  2 / 94316 MEDLINE  
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[PMID]: 29524719
[Au] Autor:Lv N; Tang H; Chen S; Wang X; Fang Y; Karmonik C; Huang Q; Liu J
[Ad] Address:Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
[Ti] Title:Morphological Parameters Related to Aneurysmal Wall Enhancement in Patients with Multiple Intracranial Aneurysms.
[So] Source:World Neurosurg;, 2018 Mar 07.
[Is] ISSN:1878-8769
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:OBJECTIVE: Vessel wall magnetic resonance imaging (MRI) has been suggested as a potential in vivo method to detect inflammation of aneurysm wall and identify unruptured intracranial aneurysm (UIA) with high rupture risk. This study aims to investigate the correlation between aneurysm wall enhancement (AWE) on vessel wall MRI and rupture-related morphological parameters in patients with multiple UIAs. METHODS: Clinical data and VW-MRI images were reviewed in 14 patients with 30 multiple UIAs. The AWE was defined as enhancement of the aneurysm wall in post-contrast vessel wall images using the pre-contrast image as reference. Morphological parameters, including aneurysm size, aspect ratio (AR), size ratio (SR), bottleneck factor (BNF), height-to-width ratio (HW), nonsphericity index (NSI) and inflow angle (IFA) were measured using 3-dimensional rotation angiography. Univariate and multivariate analysis were performed to reveal the correlation between morphological parameters and the presence of AWE. RESULTS: Sixteen of the 30 multiple UIAs presented with AWE on vessel wall MRI images. UIAs with AWE were proven to have a significantly larger size (P=0.001), AR (P=0.047), SR (P=0.003), BNF (P=0.007) and NSI (P=0.007) in univariate analysis. Further multivariate logistic regression showed that aneurysm size [odds ratio (OR)=3.54; 95% confidence interval (CI)=1.10-11.35; P=0.033] and NSI (OR=3.53; 95% CI=1.06-11.80; P=0.040) were independently associated with the presence of AWE in multiple UIAs. CONCLUSION: The presence of AWE on vessel wall MRI was significantly correlated with conventional morphological rupture risk factors in patients with multiple UIAs, which might indicate AWE as a potential radiological predictor for UIAs with high rupture risk.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  3 / 94316 MEDLINE  
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[PMID]: 29524639
[Au] Autor:Zhang Z; Zhang D; Wang Z; Li J; Lin Y; Chang S; Huang R; Liu M
[Ad] Address:Center for the Study of Applied Psychology, Key Laboratory of Mental Health and Cognitive Science of Guangdong Province, School of Psychology, South China Normal University, Guangzhou, China; Department of Special Education and Communication Disorders, University of Nebraska, Lincoln, 68583, United
[Ti] Title:Intrinsic neural linkage between primary visual area and default mode network in human brain: Evidence from visual mental imagery.
[So] Source:Neuroscience;, 2018 Mar 07.
[Is] ISSN:1873-7544
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:Previous studies have reported the essence of the sensory-based properties of human brain function, in which mental imagery is of great importance. In this study, we explored the association between the activities of two special regions, i.e., the primary visual area (PVA), which is the classically dominant sensory region, and the default mode network (DMN), which is the classical supra-sensory region, with a focus on their linkage in visual mental imagery. For this purpose, we collected fMRI data from 30 healthy participants (15 males; 22.37 ± 2.52 years) during the resting state and a mental rotation task state. By using a critical time point analysis (CTPA), we investigated the association between the activities of the PVA and the DMN. As the results showed, there existed a PVA-related (i.e., prefrontal cortex, DMN, sensorimotor areas and medial temporal lobe) and a DMN-related neural association pattern (i.e., PVA, prefrontal cortex and the medial temporal lobe) in the human brain. Furthermore, the results showed the steady and tight intrinsic association between the activities of the PVA and the DMN, with the prefrontal cortex and the medial temporal lobe regions being found to be consistently involved in the resting state brain. It also was suggested that the observed association between the PVA and the DMN was highly reproducible for the mental rotation task. Together, these observations, from the perspective of visual mental imagery, provided experimental evidence for the robustness and stability of the detailed map of the associations between the activities of the PVA and the DMN.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  4 / 94316 MEDLINE  
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[PMID]: 29524355
[Au] Autor:Sánchez-González MC; Pérez-Cabezas V; López-Izquierdo I; Gutiérrez-Sánchez E; Ruiz-Molinero C; Rebollo-Salas M; Jiménez-Rejano JJ
[Ad] Address:Department of Physics of Condensed Matter, Optics Area, University of Seville, Seville, Spain.
[Ti] Title:Is it possible to relate accommodative visual dysfunctions to neck pain?
[So] Source:Ann N Y Acad Sci;, 2018 Mar 10.
[Is] ISSN:1749-6632
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:The aim of this study was to establish whether there is a relationship between conditions of accommodative visual dysfunctions and cervical complaints. Fifty-two participants were included. Variables were accommodative amplitude, positive and negative relative accommodation (NRA), accommodative response, and accommodative facility. Subjects were classified as accommodative insufficiency, accommodative excess, or normal. Neck complaints were measured with the Neck Disability Index, the Visual Analogue Scale, and by cervical range of motion, deep flexor muscle activation score, and performance index. We found the following significant relationships: between NRA and both performance index and left-side bending; accommodative amplitude right-eye with right-side bending and with left-side bending; accommodative amplitude left-eye with right-side bending; and accommodative facility left-eye with both performance index and left-side bending. In accommodative amplitude right-eye, aIl participants showed significant values and greater than those with accommodative excess. In both groups, performance index values were decreased. Greater pain and lower right-rotation were found in participants with accommodative excess than in those with accommodative insufficiency. We conclude that accommodative dysfunctions are related to low performance index, decreased range of motion, as well as greater neck pain.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher
[do] DOI:10.1111/nyas.13614

  5 / 94316 MEDLINE  
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[PMID]: 29520184
[Au] Autor:Masuda T; Nakaura T; Funama Y; Sato T; Higaki T; Kiguchi M; Yamashita Y; Imada N; Awai K
[Ad] Address:Department of Radiological Technology, Tsuchiya General Hospital, Hiroshima 730-8655, Japan.
[Ti] Title:Effect of Patient Characteristics on Vessel Enhancement at Lower Extremity CT Angiography.
[So] Source:Korean J Radiol;19(2):265-271, 2018 Mar-Apr.
[Is] ISSN:2005-8330
[Cp] Country of publication:Korea (South)
[La] Language:eng
[Ab] Abstract:Objective: To evaluate the effect of patient characteristics on popliteal aortic contrast enhancement at lower extremity CT angiography (LE-CTA) scanning. Materials and Methods: Prior informed consent to participate was obtained from all 158 patients. All were examined using a routine protocol; the scanning parameters were tube voltage 100 kVp, tube current 100 mA to 770 mA (noise index 12), 0.5-second rotation, 1.25-mm detector row width, 0.516 beam pitch, and 41.2-mm table movement, and the contrast material was 85.0 mL. Cardiac output (CO) was measured with a portable electrical velocimeter within 5 minutes of starting the CT scan. To evaluate the effects of age, sex, body size, CO, and scan delay on the CT number of popliteal artery, the researchers used multivariate regression analysis. Results: A significant positive correlation was seen between the CT number of the popliteal artery and the patient age ( = 0.39, < 0.01). A significant inverse correlation was observed between the CT number of the popliteal artery and the height ( = -0.48), total body weight ( = -0.52), body mass index ( = -0.33), body surface area (BSA) ( = -0.56), lean body weight ( = -0.56), and CO ( = -0.35) ( < 0.001 for all). There was no significant correlation between the enhancement and the scan delay ( = 0.06, = 0.47). The BSA, CO, and age had significant effects on the CT number (standardized regression: BSA -0.42, CO -0.22, age 0.15; < 0.05, respectively). Conclusion: The BSA, CO, and age are significantly correlated with the CT number of the popliteal artery on LE-CTA.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180311
[Lr] Last revision date:180311
[St] Status:In-Data-Review
[do] DOI:10.3348/kjr.2018.19.2.265

  6 / 94316 MEDLINE  
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[PMID]: 29506652
[Au] Autor:Turi M; Burr DC; Binda P
[Ad] Address:Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.
[Ti] Title:Pupillometry reveals perceptual differences that are tightly linked to autistic traits in typical adults.
[So] Source:Elife;7, 2018 Mar 06.
[Is] ISSN:2050-084X
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:The pupil is primarily regulated by prevailing light levels but is also modulated by perceptual and attentional factors. We measured pupil-size in typical adult humans viewing a bistable-rotating cylinder, constructed so the luminance of the front surface changes with perceived direction of rotation. In some participants, pupil diameter oscillated in phase with the ambiguous perception, more dilated when the black surface was in front. Importantly, the magnitude of oscillation predicts autistic traits of participants, assessed by the Autism-Spectrum Quotient AQ. Further experiments suggest that these results are driven by differences in perceptual styles: high AQ participants focus on the front surface of the rotating cylinder, while those with low AQ distribute attention to both surfaces in a more global, holistic style. This is the first evidence that pupillometry reliably tracks inter-individual differences in perceptual styles; it does so quickly and objectively, without interfering with spontaneous perceptual strategies.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180311
[Lr] Last revision date:180311
[St] Status:In-Data-Review

  7 / 94316 MEDLINE  
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[PMID]: 29506651
[Au] Autor:Matsunaga Y; Yamane T; Terada T; Moritsugu K; Fujisaki H; Murakami S; Ikeguchi M; Kidera A
[Ad] Address:RIKEN Advanced Institute for Computational Science, Kobe, Japan.
[Ti] Title:Energetics and conformational pathways of functional rotation in the multidrug transporter AcrB.
[So] Source:Elife;7, 2018 Mar 06.
[Is] ISSN:2050-084X
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:The multidrug transporter AcrB transports a broad range of drugs out of the cell by means of the proton-motive force. The asymmetric crystal structure of trimeric AcrB suggests a functionally rotating mechanism for drug transport. Despite various supportive forms of evidence from biochemical and simulation studies for this mechanism, the link between the functional rotation and proton translocation across the membrane remains elusive. Here, calculating the minimum free energy pathway of the functional rotation for the complete AcrB trimer, we describe the structural and energetic basis behind the coupling between the functional rotation and the proton translocation at atomic resolution. Free energy calculations show that protonation of Asp408 in the transmembrane portion of the drug-bound protomer drives the functional rotation. The conformational pathway identifies vertical shear motions among several transmembrane helices, which regulate alternate access of water in the transmembrane as well as peristaltic motions that pump drugs in the periplasm.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180311
[Lr] Last revision date:180311
[St] Status:In-Data-Review

  8 / 94316 MEDLINE  
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[PMID]: 29466720
[Au] Autor:Yokota H; Mizuguchi N; Kakigi R; Nakata H
[Ad] Address:Faculty of Human Life and Environment, Nara Women's University, Nara City, Japan.
[Ti] Title:Modulation of corticospinal excitability during positive and negative motor imageries.
[So] Source:Neurosci Lett;672:1-5, 2018 Feb 18.
[Is] ISSN:1872-7972
[Cp] Country of publication:Ireland
[La] Language:eng
[Ab] Abstract:We investigated corticospinal excitability during positive (execution) and negative (suppression) imageries for the right and left upper and lower limbs. In the Positive Imagery tasks, sixteen subjects were instructed to repeatedly imagine rotation of the index finger of the right or left hand, or the ankle of the right or left foot. In the Negative Imagery tasks, they were asked to imagine the suppression of movements for the index finger of the right or left hand, or the ankle of the right or left foot. A single-pulse transcranial magnetic stimulation was delivered over the left hand primary motor cortex, and motor evoked potentials (MEPs) were recorded from the right first dorsal interosseous (FDI) muscle under all conditions. The MEP amplitudes of the FDI were significantly larger in the Positive and Negative Imagery tasks than in the resting control task during motor imagery of the right hand, left hand, and left foot, but not during that of right foot. Our results indicate that imageries of suppressing hand and foot movements enhanced corticospinal excitability.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  9 / 94316 MEDLINE  
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[PMID]: 29310058
[Au] Autor:Jafarnezhadgero A; Majlesi M; Madadi-Shad M
[Ad] Address:Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran. Electronic address: a.jafarnezhad@uma.ac.ir.
[Ti] Title:The effects of low arched feet on lower limb joints moment asymmetry during gait in children: A cross sectional study.
[So] Source:Foot (Edinb);34:63-68, 2017 Nov 10.
[Is] ISSN:1532-2963
[Cp] Country of publication:Scotland
[La] Language:eng
[Ab] Abstract:BACKGROUND: The prevalence of flexible flat feet in children was reported to be up to 20% in previous studies. However, the role of foot type in the development of musculoskeletal injuries is less clear, particularly in children. The purpose of this study was to investigate the differences in the joint moment asymmetry in children with flexible flat feet and healthy matched control subjects. METHODS: Fourteen male children with flexible flat feet and 15 healthy control subjects served as the sample of the study. Three dimensional kinematics and kinetic data were collected using a Vicon camera system and two Kistler force platforms during walking. Then between-limb asymmetry was examined for each joint moment. RESULTS: Normal individuals experienced higher asymmetry in the ankle eversion and the external rotation moments than the flat feet group. Asymmetry indices in the knee abduction, adduction, and the internal rotation moments in the flat feet group were higher than that in the normal group by 15%, 24% and 13%, respectively. Furthermore, in comparison of the two groups, individuals with flat feet had higher asymmetry in the hip flexion moment as well as the hip abduction moment. CONCLUSIONS: In order to provide appropriate protocols or footwear design for male children with flat feet, clinicians need to understand that flat feet children do not have higher levels of joint moment asymmetry as compared to normal children in all joints and all planes; consequently, they must differentiate their treatments for each specific joint. However, further larger study is warranted.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1801
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:Publisher

  10 / 94316 MEDLINE  
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[PMID]: 29305450
[Au] Autor:Kono K; Tomita T; Futai K; Yamazaki T; Tanaka S; Yoshikawa H; Sugamoto K
[Ad] Address:Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan and Department of Orthopaedic Biomaterial Science, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka 565-0871, Japan.
[Ti] Title: three-dimensional kinematics of normal knees during different high-flexion activities.
[So] Source:Bone Joint J;100-B(1):50-55, 2018 Jan.
[Is] ISSN:2049-4408
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:AIMS: In Asia and the Middle-East, people often flex their knees deeply in order to perform activities of daily living. The purpose of this study was to investigate the 3D kinematics of normal knees during high-flexion activities. Our hypothesis was that the femorotibial rotation, varus-valgus angle, translations, and kinematic pathway of normal knees during high-flexion activities, varied according to activity. MATERIALS AND METHODS: We investigated the kinematics of eight normal knees in four male volunteers (mean age 41.8 years; 37 to 53) using 2D and 3D registration technique, and modelled the knees with a computer aided design program. Each subject squatted, kneeled, and sat cross-legged. We evaluated the femoral rotation and varus-valgus angle relative to the tibia and anteroposterior translation of the medial and lateral side, using the transepicodylar axis as our femoral reference relative to the perpendicular projection on to the tibial plateau. This method evaluates the femur medially from what has elsewhere been described as the extension facet centre, and differs from the method classically applied. RESULTS: During squatting and kneeling, the knees displayed femoral external rotation. When sitting cross-legged, femurs displayed internal rotation from 10° to 100°. From 100°, femoral external rotation was observed. No significant difference in varus-valgus angle was seen between squatting and kneeling, whereas a varus position was observed from 140° when sitting cross-legged. The measure kinematic pathway using our methodology found during squatting a medial pivoting pattern from 0° to 40° and bicondylar rollback from 40° to 150°. During kneeling, a medial pivot pattern was evident. When sitting cross-legged, a lateral pivot pattern was seen from 0° to 100°, and a medial pivot pattern beyond 100°. CONCLUSION: The kinematics of normal knees during high flexion are variable according to activity. Nevertheless, our study was limited to a small number of male patients using a different technique to report the kinematics than previous publications. Accordingly, caution should be observed in generalizing our findings. Cite this article: 2018;100-B:50-5.
[Mh] MeSH terms primary: Biomechanical Phenomena/physiology
Knee Joint/physiology
[Mh] MeSH terms secundary: Activities of Daily Living
Adult
Computer Simulation
Computer-Aided Design
Fluoroscopy
Humans
Imaging, Three-Dimensional/methods
Knee Joint/diagnostic imaging
Male
Middle Aged
Models, Anatomic
Range of Motion, Articular/physiology
Rotation
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1801
[Cu] Class update date: 180311
[Lr] Last revision date:180311
[Js] Journal subset:AIM; IM
[Da] Date of entry for processing:180107
[St] Status:MEDLINE
[do] DOI:10.1302/0301-620X.100B1.BJJ-2017-0553.R2


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