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https://www.readbyqxmd.com/read/28087490/longitudinal-multiple-sclerosis-lesion-segmentation-resource-challenge
#1
Aaron Carass, Snehashis Roy, Amod Jog, Jennifer L Cuzzocreo, Elizabeth Magrath, Adrian Gherman, Julia Button, James Nguyen, Ferran Prados, Carole H Sudre, Manuel Jorge Cardoso, Niamh Cawley, Olga Ciccarelli, Claudia A M Wheeler-Kingshott, Sébastien Ourselin, Laurence Catanese, Hrishikesh Deshpande, Pierre Maurel, Olivier Commowick, Christian Barillot, Xavier Tomas-Fernandez, Simon K Warfield, Suthirth Vaidya, Abhijith Chunduru, Ramanathan Muthuganapathy, Ganapathy Krishnamurthi, Andrew Jesson, Tal Arbel, Oskar Maier, Heinz Handels, Leonardo O Iheme, Devrim Unay, Saurabh Jain, Diana M Sima, Dirk Smeets, Mohsen Ghafoorian, Bram Platel, Ariel Birenbaum, Hayit Greenspan, Pierre-Louis Bazin, Peter A Calabresi, Ciprian M Crainiceanu, Lotta M Ellingsen, Daniel S Reich, Jerry L Prince, Dzung L Pham
In conjunction with the ISBI 2015 conference, we organized a longitudinal lesion segmentation challenge providing training and test data to registered participants. The training data consisted of five subjects with a mean of 4.4 time-points, and test data of fourteen subjects with a mean of 4.4 time-points. All 82 data sets had the white matter lesions associated with multiple sclerosis delineated by two human expert raters. Eleven teams submitted results using state-of-the-art lesion segmentation algorithms to the challenge, with ten teams presenting their results at the conference...
January 10, 2017: NeuroImage
https://www.readbyqxmd.com/read/28075521/association-between-adolescent-sport-activities-and-lumbar-disc-degeneration-among-young-adults
#2
Jani Takatalo, Jaro Karppinen, Simo Näyhä, Simo Taimela, Jaakko Niinimäki, Roberto Blanco Sequeiros, Tuija Tammelin, Juha Auvinen, Osmo Tervonen
The relationship between different sport activities and lumbar intervertebral disc degeneration (DD) is largely unknown. We evaluated whether adolescent participation in different sports is associated with lumbar DD in a population-based birth cohort of young adults. A total of 558 young adults (325 females and 233 males) underwent magnetic resonance imaging (MRI, 1.5-T scanner). A DD sum score, based on the Pfirrmann grading, was calculated for all lumbar levels. The sum score was categorized into no DD, 1, 2, or at least 3...
January 11, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28072874/similarity-of-center-of-pressure-progression-during-walking-and-jogging-of-anterior-cruciate-ligament-deficient-patients
#3
Hongshi Huang, Jianwei Qiu, Tianlin Liu, Yuanyuan Yu, Qinwei Guo, Dingsheng Luo, Yingfang Ao
OBJECTIVE: To evaluate the center of pressure (COP) progression similarity and its change during walking and jogging in Anterior Cruciate Ligament deficient (ACLD) patients. METHODS: A study was performed in 64 unilateral ACLD subjects and 32 healthy volunteers who walked and jogged on footscan® system at a self-selected speed. COP trajectory during walking and jogging was calculated. The robustness and similarity scores of COP (SSCOP, similarity scores with respect to corresponding COP trajectories) were computed, and then the Analysis of Variance test was employed to compare among different conditions (left or right side, within a subject or between subjects, walking or jogging)...
2017: PloS One
https://www.readbyqxmd.com/read/28070833/assessing-the-accuracy-of-algorithm-derived-cardiorespiratory-fitness-in-surgical-patients-a-prospective-cohort-study
#4
Fadi Hammal, Tanis Quaife, Kieran Purich, Robert Haennel, Ferrante S Gragasin, Daniella San Martin-Feeney, Barry A Finegan
PURPOSE: To determine if a non-exercise algorithm-derived assessment of cardiorespiratory fitness (CRFA) accurately predicted estimated values obtained using a six-minute walk test (CRF6MWD) and the Duke Activity Status Index (CRFDASI). METHODS: Following research ethics board approval, an observational cohort study was conducted in selected, consenting patients undergoing elective surgery. Participants completed questionnaires assessing their self-reported exercise capacity...
January 9, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28067762/ecologically-valid-carbohydrate-intake-during-soccer-specific-exercise-does-not-affect-running-performance-in-a-fed-state
#5
Mark P Funnell, Nick R Dykes, Elliot J Owen, Stephen A Mears, Ian Rollo, Lewis J James
This study assessed the effect of carbohydrate intake on self-selected soccer-specific running performance. Sixteen male soccer players (age 23 ± 4 years; body mass 76.9 ± 7.2 kg; predicted VO2max = 54.2 ± 2.9 mL∙kg(-1)∙min(-1); soccer experience 13 ± 4 years) completed a progressive multistage fitness test, familiarisation trial and two experimental trials, involving a modified version of the Loughborough Intermittent Shuttle Test (LIST) to simulate a soccer match in a fed state. Subjects completed six 15 min blocks (two halves of 45 min) of intermittent shuttle running, with a 15-min half-time...
January 5, 2017: Nutrients
https://www.readbyqxmd.com/read/28064258/let-s-become-champion-iapians
#6
Pramod P Jog
No abstract text is available yet for this article.
December 15, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/28046009/stiffness-effects-in-rocker-soled-shoes-biomechanical-implications
#7
Shih-Yun Lin, Pei-Fang Su, Chia-Hua Chung, Chi-Chun Hsia, Chih-Han Chang
Rocker-soled shoes provide a way to reduce the possible concentration of stress, as well as change movement patterns, during gait. This study attempts to examine how plantar force and spatio-temporal variables are affected by two rocker designs, one with softer and one with denser sole materials, by comparing them with the barefoot condition and with flat-soled shoes. Eleven subjects' gait parameters during walking and jogging were recorded. Our results showed that compared with barefoot walking, plantar forces were higher for flat shoes while lower for both types of rocker shoes, the softer-material rocker being the lowest...
2017: PloS One
https://www.readbyqxmd.com/read/28035865/effect-of-contact-and-no-contact-small-sided-games-on-elite-handball-players
#8
Antonio Dello Iacono, Domenico Martone, Alessandro Moura Zagatto, Yoav Meckel, Mahmood Sindiani, Mirjana Milic, Johnny Padulo
This study aimed to investigate the effect of contact (C-SSG) and no-contact (NC-SSG) handball small-sided games (SSGs) on motion patterns and physiological responses of elite handball players. Twelve male handball players performed 10 C-SSG and 10 NC-SSG while being monitored through the heart rate (HR) and rate of perceived exertion (RPE) as physiological responses and time-motion activities profile using video-match analysis. Both game conditions resulted in similar HR responses (P > 0.05), but the NC-SSG led to a higher RPE scores...
December 30, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28034796/mechanics-and-regulation-of-cytokinesis-in-budding-yeast
#9
REVIEW
Yogini P Bhavsar-Jog, Erfei Bi
Cytokinesis is essential for the survival of all organisms. It requires concerted functions of cell signaling, force production, exocytosis, and extracellular matrix remodeling. Due to the conservation in core components and mechanisms between fungal and animal cells, the budding yeast Saccharomyces cerevisiae has served as an attractive model for studying this fundamental process. In this review, we discuss the mechanics and regulation of distinct events of cytokinesis in budding yeast, including the assembly, constriction, and disassembly of the actomyosin ring, septum formation, abscission, and their spatiotemporal coordination...
December 26, 2016: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28018960/neighbourhood-greenspace-is-associated-with-a-slower-decline-in-physical-activity-in-older-adults-a-prospective-cohort-study
#10
Alice M Dalton, Nick Wareham, Simon Griffin, Andrew P Jones
Maintaining physical activity in later life is important for maintaining health and function. Activity outdoors, such as walking, jogging and cycling, may provide an accessible, sociable and practical solution, but maintaining outdoor mobility may be a challenge in later life. Providing green environments which are supportive of physical activity may facilitate this, yet research into how greenspace could be best used is inconclusive. This study evaluates the role of greenspace in protecting against decline in physical activity over time in older adults...
December 2016: SSM—Population Health
https://www.readbyqxmd.com/read/28009497/screw-dislocation-induced-strengthening-toughening-mechanisms-in-complex-layered-materials-the-case-study-of-tobermorite
#11
Ning Zhang, Philippe Carrez, Rouzbeh Shahsavari
Nanoscale defects such as dislocations have a profound impact on physics of crystalline materials. Understanding and characterizing the motion of screw dislocation and its corresponding effects on mechanical properties of complex, low symmetry materials has long been a challenge. Herein, we focus on triclinic tobermorite, as a model system and a crystalline analog of layered hydrated cement, and report for the first time how the motion of screw dislocation can influence the strengthening-toughening relationship, imparting brittle-to-ductile transitions...
December 23, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27990222/spatial-awareness-is-related-to-moderate-intensity-running-during-a-collegiate-rugby-match
#12
Kyle S Beyer, David H Fukuda, Amelia M Miramonti, Mattan W Hoffman, Ran Wang, Michael B LA Monica, Josh J Riffe, Satoru Tanigawa, Jeffrey R Stout, Jay R Hoffman
The purpose of the present study was to evaluate the relationship between spatial awareness, agility, and distance covered in global positioning system (GPS) derived velocity zone classifications during a collegiate rugby match. Twelve American collegiate rugby union players (mean±SD; age: 21.2±1.4 y; weight: 85.0±16.0 kg; 7 forwards & 5 backs) on a single team volunteered to participate in this investigation. The distances travelled at low (walking/jogging; <2.7m/s), moderate (cruising/striding; 2.7-5...
2016: International Journal of Exercise Science
https://www.readbyqxmd.com/read/27922930/jogging-and-mortality-is-there-a-u-shaped-curve
#13
Pier L Temporelli
No abstract text is available yet for this article.
December 2, 2016: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/27918655/activity-profiles-and-positional-differences-of-handball-players-during-the-world-championships-in-qatar-2015
#14
Marco Cardinale, Rodney Whiteley, Ahmed Abdelrahman Hosny, Nebojsa Popovic
PURPOSE: Handball is an Olympic sport played indoor by 6 court players and one goalkeeper with rolling substitutions. Limited data exist on elite players competing in a World Championship and virtually no information exits on the evolution of time-motion performance over the course of a long tournament. Therefore, the aim of this study was to analyze time motion characteristics of elite male handball players of the last World Championships played in Qatar in 2015. METHODS: 384 Players from 24 national teams were analyzed during 88 matches using a tracking camera system and a bespoke software (Prozone Handball V...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27913353/embroidered-electromyography-a-systematic-design-guide
#15
Ali Shafti, Roger Ribas Manero, Amanda Borg, Kaspar Althoefer, Matthew Howard
Muscle activity monitoring or Electromyography (EMG) is a useful tool. However, EMG is typically invasive, expensive and difficult to use for untrained users. A possible solution is textile-based surface EMG (sEMG) integrated into clothing as a wearable device. This is, however, challenging due to (i) uncertainties in the electrical properties of conductive threads used for electrodes, (ii) imprecise fabrication technologies (e.g., embroidery, sewing), and (iii) lack of standardization in design variable selection...
December 1, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/27912681/how-valid-are-wearable-physical-activity-trackers-for-measuring-steps
#16
Hyun-Sung An, Gregory C Jones, Seoung-Ki Kang, Gregory J Welk, Jung-Min Lee
Wearable activity trackers have become popular for tracking individual's daily physical activity, but little information is available to substantiate the validity of these devices in step counts. Thirty-five healthy individuals completed three conditions of activity tracker measurement: walking/jogging on a treadmill, walking over-ground on an indoor track, and a 24-hour free-living condition. Participants wore 10 activity trackers at the same time for both treadmill and over-ground protocol. Of these 10 activity trackers three were randomly given for 24-hour free-living condition...
December 2, 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27910677/temperature-gradient-scale-length-measurement-a-high-accuracy-application-of-electron-cyclotron-emission-without-calibration
#17
S Houshmandyar, Z J Yang, P E Phillips, W L Rowan, A E Hubbard, J E Rice, J W Hughes, S M Wolfe
Calibration is a crucial procedure in electron temperature (Te) inference from a typical electron cyclotron emission (ECE) diagnostic on tokamaks. Although the calibration provides an important multiplying factor for an individual ECE channel, the parameter ΔTe/Te is independent of any calibration. Since an ECE channel measures the cyclotron emission for a particular flux surface, a non-perturbing change in toroidal magnetic field changes the view of that channel. Hence the calibration-free parameter is a measure of Te gradient...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27901337/the-effect-of-exercise-induced-weight-loss-on-myokines-and-adipokines-in-overweight-sedentary-females-steps-aerobics-vs-jogging-walking-exercises
#18
Halil Duzova, Esin Gullu, Guner Cicek, Burcu K Koksal, Basak Kayhan, Abdullah Gullu, Ibrahim Sahin
BACKGROUND: The objectives of this study were to verify effects of step-aerobic exercise (SAE) and jogging-walking exercise (JWE) program on myokines and adipokines levels in overweight sedentary females. METHODS: Volunteer subjects (n=25) were assigned to two exercise groups: steps aerobics and jogging-walking. The exercise program given to them was for five days a week and for twelve weeks period. Serum samples were collected from venous blood before and immediately after cardio-respiratory fitness test (CRF) by Bruce protocol and stored at -80 C until they were assayed before 12 weeks exercise program...
November 30, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27889720/clearing-pediatric-airways
#19
Pramod P Jog
No abstract text is available yet for this article.
November 15, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27868426/effects-of-regular-tai-chi-practice-and-jogging-on-neuromuscular-reaction-during-lateral-postural-control-in-older-people
#20
Shao-Jun Wang, Dong-Qing Xu, Jing-Xian Li
This study examined the effects of regular Tai Chi practice and jogging on the neuromuscular activity of the trunk, hip, and ankle joint muscles of older people during lateral postural perturbation. A total of 42 older people participated in the study and formed the Tai Chi, jogging, and sedentary control groups. Electromyography signals were collected from the peroneus longus, anterior tibialis, gluteus medius, and erector spinae during unpredictable mediolateral perturbation. The Tai Chi group exhibited significantly faster latencies of the tibialis anterior and erector spinae than the control group...
January 2017: Research in Sports Medicine
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