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Kaitlin C Maguire, Douglas J Shinneman, Kevin M Potter, Valerie D Hipkins
Unique responses to climate change can occur across intraspecific levels, resulting in individualistic adaptation or movement patterns among populations within a given species. Thus, the need to model potential responses among genetically distinct populations within a species is increasingly recognized. However, predictive models of future distributions are regularly fit at the species level, often because intraspecific variation is unknown or is identified only within limited sample locations. In this study, we considered the role of intraspecific variation to shape the geographic distribution of ponderosa pine (Pinus ponderosa), an ecologically and economically important tree species in North America...
March 14, 2018: Systematic Biology
Latifah Alazmi, Grace E Gadsby, Nicola R Heneghan, T David Punt
BACKGROUND: Left/right judgment tasks (LRJTs) are used in the management of chronic pain. This use is predicated on their ability to elicit the simulation of movements (i.e. motor imagery), including those where the execution of the same movements induces pain. While established for limb-based LRJTs, the ability of trunk-based LRJTs to elicit motor imagery of trunk movements has not been demonstrated. OBJECTIVE: To establish whether data from a trunk-based LRJT are indicative of motor imagery being elicited for the specific lateralised trunk postures presented...
March 7, 2018: Musculoskeletal Science & Practice
Andrew McDowell, Neeraj Raizada, Sunil D Khaparde, Raghuram Rao, Sanjay Sarin, Aakshi Kalra, Virender Singh Salhotra, Sreenivas Achuthan Nair, Catharina Boehme, Claudia M Denkinger
BACKGROUND: Diagnosing tuberculosis (TB) in children presents considerable challenges. Upfront testing on Xpert® MTB/RIF ('Xpert')-a rapid molecular assay with high sensitivity and specificity-for pediatric presumptive TB patients, as recommended by India's Revised National Tuberculosis Control Program (RNTCP), can pave the way for early TB diagnosis. As part of an ongoing project implemented by Foundation for Innovative New Diagnostics (FIND) dedicated to providing upfront free-of-cost (FOC) Xpert testing to children seeking care in the public and private sectors, a qualitative assessment was designed to understand how national guidelines on TB diagnosis and Xpert technology have been integrated into the pediatric TB care practices of different health providers...
2018: PloS One
Estefania Munoz Diaz, Susanna Kaiser, Dina Bousdar Ahmed
Shoe-mounted inertial sensors are widespread deployed in satellite-denied scenarios because of the possibility to re-calibrate stepwise the estimated position. These re-calibrations, known as zero-velocity corrections, prevent an accumulated positioning error growth over time caused by the noise of current medium- and low-cost sensors. However, the error accumulated over time in the height estimation is still an issue under study. The objective of this article is to propose a height correction that is based on the dynamics of the foot...
March 16, 2018: Sensors
Jules Gellaerts, Evgeny Bogdanov, Farzin Dadashi, Benoit Mariani
Ski Mountaineering (SkiMo) is a fast growing sport requiring both endurance and technical skills. It involves different types of locomotion with and without the skis. The aim of this study is to develop and validate in the snowfield a novel inertial-based system for analysing cycle parameters and classifying movement in SkiMo in real-time. The study was divided into two parts, one focused on real-time parameters estimation (cadence, distance from strides, stride duration, stride length, number of strides, slope gradient, and power) and, second, on transition detection (kickturns, skin on, skin off, ski on and off backpack) in order to classify between the different types of locomotion...
March 16, 2018: Sensors
Lois D Hedman, Lori Quinn, Kathleen Gill-Body, David A Brown, Myla Quiben, Nora Riley, Patricia L Scheets
BACKGROUND AND PURPOSE: The APTA recently established a vision for physical therapists to transform society by optimizing movement to promote health and wellness, mitigate impairments, and prevent disability. An important element of this vision entails the integration of the movement system into the profession, and necessitates the development of movement system diagnoses by physical therapists. At this point in time, the profession as a whole has not agreed upon diagnostic classifications or guidelines to assist in developing movement system diagnoses that will consistently capture an individual's movement problems...
April 2018: Journal of Neurologic Physical Therapy: JNPT
Shilpa B Gaikwad, Eric G Johnson, Todd C Nelson, Oluwaseun I Ambode, Abdulaziz A Albalwi, Ahmad A Alharbi, Noha S Daher
BACKGROUND AND PURPOSE: Motion sensitivity is a common condition among the general population and may be accompanied by postural instability and anxiety. Preliminary studies suggest that minimal dosage of gaze stability exercises improves postural stability in young adults with chronic motion sensitivity. The aim of this study was to investigate the effect of progressive gaze stability exercises on postural stability, motion sensitivity, and anxiety in healthy young adults with chronic motion sensitivity...
April 2018: Journal of Neurologic Physical Therapy: JNPT
Edelle Edee Field-Fote
No abstract text is available yet for this article.
April 2018: Journal of Neurologic Physical Therapy: JNPT
Varun Chandra, Danielle Buck, Rahul Chakrabarti, Alan McNab
A 24-year-old woman presented with a 1-year history of gradually increasing pain on eye movements, worse on the right. She had a significant background of undergoing intracranial correction of orbital hypertelorism with internal fixation of the lateral orbital rims at the age of 6 years. Imaging was consistent with bilateral metallic foreign bodies from both lateral orbital rims protruding into the globes. The patient underwent removal of bilateral plates and screws, with a significant improvement of symptoms and ocular motility postoperatively...
March 14, 2018: Ophthalmic Plastic and Reconstructive Surgery
Ayman Ebied, Ahmed Zayda, Sameh Marei, Hany Elsayed
INTRODUCTION: Successful treatment of knee comminuted periarticular fractures associated with osteoporosis and pre-existing arthritis is a challenging task. METHODS: This is a prospective study on 27 patients who had comminuted intra and periarticular knee fractures and pre-existing arthritis. Fractures were classified according to Muller's AO classification. Primary knee arthroplasty was performed ± internal fixation following 4 weeks of splinting. A stem was added to the tibial tray and Legacy Constrained Condylar Knee (LCCK) or Rotating Hinge (RH) prosthesis were used depending on the level of ligament damage and bone defects...
2018: SICOT-J
Da-Zhi Guo, Lin Xiao, Yi-Jun Liu, Chen Shen, Hui-Fang Lou, Yan Lv, Shu-Yi Pan
This study aimed to investigate the role of cathepsin D (CathD) in central nervous system (CNS) myelination and its possible mechanism. By using CathD knockout mice in conjunction with immunohistochemistry, immunocytochemistry and western blot assays, the myelination of the CNS and the development of oligodendrocyte lineage cells in vivo and in vitro were observed. Endocytosis assays, real-time-lapse experiments and total internal reflection fluorescence microscopy were used to demonstrate the location and movement of proteolipid protein in oligodendrocyte lineage cells...
March 16, 2018: Experimental & Molecular Medicine
Yan Zheng, Tetsuro Muraoka, Kento Nakagawa, Kouki Kato, Kazuyuki Kanosue
The relative-salience hypothesis has been proposed as a possible explanation for the stability of bimanual coordination. This explanation proceeds from a psychological viewpoint and is based on the following tenets: (1) cyclic joint motions involving two movements are conceived of as a unified event, (2) if a "single" point in each movement is seen as the most salient, the salient points of the two movements prefer to go together, and (3) in other cases, a unified event will be constrained by movement direction...
March 15, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Manon Auffret, Sophie Drapier, Marc Vérin
Apomorphine is now recognized as the oldest antiparkinsonian drug on the market. Though still underused, it is increasingly prescribed in Europe for patients with advanced Parkinson's disease (PD) with motor fluctuations. However, its history is far from being limited to movement disorders. This paper traces the history of apomorphine, from its earliest empirical use, to its synthesis, pharmacological development, and numerous indications in human and veterinary medicine, in light of its most recent uses and newest challenges...
March 15, 2018: Drugs in R&D
Ayori Mitsutake, Hiroshi Takano
Molecular dynamics simulation is a powerful method for investigating the structural stability, dynamics, and function of biopolymers at the atomic level. In recent years, it has become possible to perform simulations on time scales of the order of milliseconds using special hardware. However, it is necessary to derive the important factors contributing to structural change or function from the complicated movements of biopolymers obtained from long simulations. Although some analysis methods for protein systems have been developed using increasing simulation times, many of these methods are static in nature (i...
March 15, 2018: Biophysical Reviews
Kazuhisa Matsui, Takashi Tachibana, Katsuya Nobuhara, Yasushi Uchiyama
BACKGROUND: The glenohumeral joint is subjected to opposing forces when the direction of shoulder motion is changed, accelerating and decelerating to make the movements. The influence of motion velocity or acceleration on translation of the humeral head has not been evaluated although direction and distance of humeral head translation has been analyzed in real time in normal shoulders. We hypothesized that, in a normal shoulder, the humeral head does not deviate significantly or suddenly during active shoulder rotation regardless of motion velocity...
March 15, 2018: Journal of Experimental Orthopaedics
Fanny Gabrysz-Forget, Mélanie Hébert, André Denault, Louis P Perrault
This case report presents a manual decompression technique used to decompress a postoperative tamponade compressing right chambers. It consists of lateral movements following subxiphoid finger insertion. This is an accessible procedure to rapidly stabilize the haemodynamics of the patient in the intensive care unit to buy time before operating room (OR) revision.
March 12, 2018: Interactive Cardiovascular and Thoracic Surgery
Ling-Zhen Cao, Xiao-Wei Fu, Chao-Xing Hu, Kong-Ming Wu
Pantala flavescens (Fabricius 1798) (Odonata: Libellulidae) is one of the most common species of migratory dragonflies. P. flavescens adults were captured by a searchlight trap on Beihuang Island (BH Island; 38°24'N, 120°55'E) from 2003 to 2016, where there is no freshwater. This inspired our research to analyze the pattern of seasonal migration and population dynamics. Stable hydrogen isotope measurement and the Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) were used to simulate the migration pathway of P...
March 12, 2018: Environmental Entomology
Christopher L Jones, Derek G Kamper
Finger-thumb coordination is crucial to manual dexterity but remains incompletely understood, particularly following neurological injury such as stroke. While being controlled independently, the index finger and thumb especially must work in concert to perform a variety of tasks requiring lateral or palmar pinch. The impact of stroke on this functionally critical sensorimotor control during dynamic tasks has been largely unexplored. In this study, we explored finger-thumb coupling during close-open pinching motions in stroke survivors with chronic hemiparesis...
2018: Frontiers in Neurology
Youngin Choi, Jungsuk Roh
[Purpose] The present study aimed to analyze and compare the activity profile and physiological responses of amateur football referees during competitive matches of high school and college students. [Subjects and Methods] Thirty referees (high school, 15; college, 15) were included in this study. The total distance covered, movement speed, and heart rate were measured using a global positioning system-enabled wireless heart rate monitor. The blood lactate concentration was measured immediately after the first and second half...
February 2018: Journal of Physical Therapy Science
Ji-Hye Do, Won-Gyu Yoo
[Purpose] The purpose of this study was to investigate the effectiveness of using a visual feedback-equipped reacher when performing reach-to-grasp tasks. [Subjects and Methods] Seventeen healthy participants with no illnesses or physical disabilities were selected for this study. Activation of the flexor digitorum superficialis and extensor digitorum muscles was assessed using electromyography. Wrist and shoulder momentums were calculated using a three-axis acceleration sensor. Participants were instructed to move 10 ears of plastic corn from right to left using a reacher with and without visual feedback...
February 2018: Journal of Physical Therapy Science
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