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https://www.readbyqxmd.com/read/29902811/influence-of-training-load-and-altitude-on-hrv-fatigue-patterns-in-elite-nordic-skiers
#1
Laurent Schmitt, Jacques Regnard, Nicolas Coulmy, Gregoire P Millet
We aimed to analyse the relationship between training load/intensity and different heart rate variability (HRV) fatigue patterns in 57 elite Nordic-skiers. 1063 HRV tests were performed during 5 years. R-R intervals were recorded in resting supine (SU) and standing (ST) positions. Heart rate, low (LF), high (HF) frequency powers of HRV were determined. Training volume, training load (TL, a.u.) according to ventilatory threshold 1 (VT1) and VT2 were measured in zones I≤VT1; VT1<II≤VT2; III>VT2, IV for strength...
June 14, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29902061/validity-of-the-modified-shuttle-walk-test-to-assess-cardiorespiratory-fitness-after-exercise-intervention-in-overweight-obese-adults-with-primary-hypertension
#2
Borja Jurio-Iriarte, Peter H Brubaker, Ilargi Gorostegi-Anduaga, Pablo Corres, Aitor Martinez Aguirre-Betolaza, Sara Maldonado-Martin
The study aimed to assess whether the Modified Shuttle Walk Test (MSWT) can detect changes in cardiorespiratory fitness (CRF) in overweight/obese people with hypertension (HTN) after an exercise intervention evaluating the equation presented in the previous research by Jurio-Iriarte et al. Participants (N= 248) performed a peak cardiorespiratory exercise test (CPET) and MSWT before and after 16-weeks of different types of aerobic exercise intervention. The formula of Jurio-Iriarte et al. was used to predict peak oxygen uptake (V̇O2peak )...
June 14, 2018: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29897050/high-intensity-high-volume-interval-training-improves-endurance-performance-and-induces-a-nearly-complete-slow-to-fast-fiber-transformation-on-the-mrna-level
#3
Julian Eigendorf, Marcus May, Jan Friedrich, Stefan Engeli, Norbert Maassen, Gerolf Gros, Joachim D Meissner
We present here a longitudinal study determining the effects of two 3 week-periods of high intensity high volume interval training (HIHVT) (90 intervals of 6 s cycling at 250% maximum power, Pmax /24 s) on a cycle ergometer. HIHVT was evaluated by comparing performance tests before and after the entire training (baseline, BSL, and endpoint, END) and between the two training sets (intermediate, INT). The mRNA expression levels of myosin heavy chain (MHC) isoforms and markers of energy metabolism were analyzed in M...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29895234/progression-in-running-intensity-or-running-volume-and-the-development-of-specific-injuries-in-recreational-runners-run-clever-a-randomized-trial-using-competing-risks
#4
Daniel Ramskov, Sten Rasmussen, Henrik Sørensen, Erik Thorlund Parner, Martin Lind, Rasmus Nielsen
Study Design Randomized clinical trial, etiology. Background Training intensity and volume have been proposed to be associated with specific running-related injuries. If such an association exists, secondary preventive measures could be initiated by clinicians based on symptoms of a specific injury diagnosis. Objectives To test the following hypotheses: (i) A running schedule focusing on intensity will increase the risk of sustaining Achilles tendinopathy, gastrocnemius injuries and plantar fasciitis compared with hypothesized volume-related injuries...
June 12, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29893995/on-the-relation-between-mr-spectroscopy-features-and-the-distance-to-mri-visible-solid-tumor-in-gbm-patients
#5
Nuno Pedrosa de Barros, Raphael Meier, Martin Pletscher, Samuel Stettler, Urspeter Knecht, Evelyn Herrmann, Philippe Schucht, Mauricio Reyes, Jan Gralla, Roland Wiest, Johannes Slotboom
PURPOSE: To improve the detection of peritumoral changes in GBM patients by exploring the relation between MRSI information and the distance to the solid tumor volume (STV) defined using structural MRI (sMRI). METHODS: Twenty-three MRSI studies (PRESS, TE 135 ms) acquired from different patients with untreated GBM were used in this study. For each MRSI examination, the STV was identified by segmenting the corresponding sMRI images using BraTumIA, an automatic segmentation method...
June 12, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29892520/telangiectatic-osteosarcoma-outcome-analyses-and-a-diagnostic-model-for-differentiation-from-aneurysmal-bone-cyst
#6
Jun-Qiang Yin, Yi-Wei Fu, Xian-Biao Xie, Xiao-Yu Cheng, Xiao-Yu Yang, Wei-Hai Liu, Jian Tu, Zhen-Hua Gao, Jing-Nan Shen
Background and purpose: Telangiectatic osteosarcoma (TOS), a rare variant of osteosarcoma, may be easily misdiagnosed as aneurysmal bone cyst (ABC). The aims of this study were to investigate the diagnostic and prognostic factors of TOS by reviewing our experience with TOS and to develop a diagnostic model that may distinguish TOS from ABC. Materials and methods: We identified 51 cases of TOS treated at the First Affiliated Hospital of Sun Yat-Sen University from March 2001 to January 2016 and reviewed their records, imaging information and pathological studies...
June 2018: Journal of Bone Oncology
https://www.readbyqxmd.com/read/29889865/hiv-infection-in-patients-with-sexually-transmitted-infections-in-zimbabwe-results-from-the-zimbabwe-sti-etiology-study
#7
Peter H Kilmarx, Elizabeth Gonese, David A Lewis, Z Mike Chirenje, Beth A Tippett Barr, Ahmed S Latif, Lovemore Gwanzura, H Hunter Handsfield, Anna Machiha, Owen Mugurungi, Cornelius A Rietmeijer
BACKGROUND: HIV and other sexually transmitted infections (STI) frequently co-occur. We conducted HIV diagnostic testing in an assessment of the etiologies of major STI syndromes in Zimbabwe. METHODS: A total of 600 patients were enrolled at six geographically diverse, high-volume STI clinics in Zimbabwe in 2014-15: 200 men with urethral discharge, 200 women with vaginal discharge, and 100 men and 100 women each with genital ulcer disease (GUD). Patients completed a questionnaire, underwent a genital examination, and had specimens taken for etiologic testing...
2018: PloS One
https://www.readbyqxmd.com/read/29884845/williams-syndrome-neuroanatomical-score-associates-with-gtf2ird1-in-large-scale-magnetic-resonance-imaging-cohorts-a-proof-of-concept-for-multivariate-endophenotypes
#8
Chun Chieh Fan, Andrew J Schork, Timothy T Brown, Barbara E Spencer, Natacha Akshoomoff, Chi-Hua Chen, Joshua M Kuperman, Donald J Hagler, Vidar M Steen, Stephanie Le Hellard, Asta Kristine Håberg, Thomas Espeseth, Ole A Andreassen, Anders M Dale, Terry L Jernigan, Eric Halgren
Despite great interest in using magnetic resonance imaging (MRI) for studying the effects of genes on brain structure in humans, current approaches have focused almost entirely on predefined regions of interest and had limited success. Here, we used multivariate methods to define a single neuroanatomical score of how William's Syndrome (WS) brains deviate structurally from controls. The score is trained and validated on measures of T1 structural brain imaging in two WS cohorts (training, n = 38; validating, n = 60)...
June 8, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29877679/do-traditional-and-reverse-swimming-training-periodizations-lead-to-similar-aerobic-performance-improvements
#9
Vicente J Clemente-Suárez, Ricardo J Fernandes, Kelly de Jesus, Jailton G Pelarigo, Juan J Arroyo-Toledo, J Paulo Vilas-Boas
BACKGROUND: The purpose of the present research was to analyze the modifications on aerobic swimming performance indicators after performing traditional and reverse training periodizations (TTP and RTP, respectively). METHODS: Seventeen trained swimmers were divided into two groups: one group (N.=7) performed 10 weeks of TTP (based on high volumes and an increased intensity during the program) and the second one (N.=10) was involved in a similar period of RTP (based on low volumes and high intensity during the entire program)...
June 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29877674/risk-factors-for-precompetitive-sleep-behavior-in-elite-female-athletes
#10
Maria-Raquel Silva, Teresa Paiva
BACKGROUND: Sleep is of major importance for the athletes' short and long-term health, performance and recovery; however, published studies on athletes' sleep and even fewer before competition are scarce. This study evaluated the risk factors of sleep in young female gymnasts before an international competition. METHOD: Sixty-seven rhythmic gymnasts (M=18.7,SD=2.9yrs.) of high performance (M=36.6,SD=7.6h/week) were evaluated regarding training and sport practice, body composition, sleep duration, daytime sleepiness by the Epworth Sleepiness Scale, sleep quality by the Pittsburgh Sleep Quality Index, precompetitive anxiety by the Sport Competition Anxiety Test form A, and detailed dietary intake just prior to a world competition...
June 7, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29876284/the-site-of-stimulation-moderates-neuropsychiatric-symptoms-after-subthalamic-deep-brain-stimulation-for-parkinson-s-disease
#11
Philip E Mosley, David Smith, Terry Coyne, Peter Silburn, Michael Breakspear, Alistair Perry
Deep brain stimulation of the subthalamic nucleus for Parkinson's disease is an established advanced therapy that addresses motor symptoms and improves quality of life. However, it has also been associated with neuropsychiatric symptoms such as impulsivity and hypomania. When significant, these symptoms can be distressing, necessitating psychiatric intervention. However, a comprehensive analysis of neurocognitive and neuropsychiatric outcomes with reference to the site of subthalamic stimulation has not been undertaken...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29875693/training-characteristics-during-pregnancy-and-postpartum-in-the-world-s-most-successful-cross-country-skier
#12
Guro S Solli, Øyvind Sandbakk
This case-study investigated the training characteristics, physiological capacity, and body composition of the world's most successful cross country skier during the 40-week pregnancy, and the 61-week postpartum. Training data was systemized by training form (endurance, strength, and speed), intensity [low- (LIT), moderate- (MIT), and high-intensity training (HIT)], and mode (running, cycling, and skiing/roller skiing). The training volume [mean ± standard deviation (median)] during pregnancy was 12.9 ± 7...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29871948/automatically-identifying-counting-and-describing-wild-animals-in-camera-trap-images-with-deep-learning
#13
Mohammad Sadegh Norouzzadeh, Anh Nguyen, Margaret Kosmala, Alexandra Swanson, Meredith S Palmer, Craig Packer, Jeff Clune
Having accurate, detailed, and up-to-date information about the location and behavior of animals in the wild would improve our ability to study and conserve ecosystems. We investigate the ability to automatically, accurately, and inexpensively collect such data, which could help catalyze the transformation of many fields of ecology, wildlife biology, zoology, conservation biology, and animal behavior into "big data" sciences. Motion-sensor "camera traps" enable collecting wildlife pictures inexpensively, unobtrusively, and frequently...
June 5, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29864246/the-clinical-specialist-radiation-therapist-csrt-a-case-study-exploring-the-effectiveness-of-a-new-advanced-practice-role-in-canada
#14
Nicole Harnett, Kate Bak, Elizabeth Lockhart, Michelle Ang, Laura Zychla, Eric Gutierrez, Padraig Warde
INTRODUCTION: The Clinical Specialist Radiation Therapist (CSRT), is a new advanced practice (AP) role for radiation therapists (RTTs). Following training, education and evaluation, the CSRT performs specific duties in autonomous ways, making advanced clinical decisions in their area of specialization. This case study examines the CSRT's impact on quantity (i.e., increasing capacity), improving quality and stimulating research and innovation. METHODS: Between 2007 and 2016, 23 CSRTs worked in 10 cancer centres in various AP position...
June 2018: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/29863600/clinical-evaluation-of-a-multiparametric-deep-learning-model-for-glioblastoma-segmentation-using-heterogeneous-magnetic-resonance-imaging-data-from-clinical-routine
#15
Michael Perkuhn, Pantelis Stavrinou, Frank Thiele, Georgy Shakirin, Manoj Mohan, Dionysios Garmpis, Christoph Kabbasch, Jan Borggrefe
OBJECTIVES: The aims of this study were, first, to evaluate a deep learning-based, automatic glioblastoma (GB) tumor segmentation algorithm on clinical routine data from multiple centers and compare the results to a ground truth, manual expert segmentation, and second, to evaluate the quality of the segmentation results across heterogeneous acquisition protocols of routinely acquired clinical magnetic resonance imaging (MRI) examinations from multiple centers. MATERIALS AND METHODS: The data consisted of preoperative MRI scans (T1, T2, FLAIR, and contrast-enhanced [CE] T1) of 64 patients with an initial diagnosis of primary GB, which were acquired in 15 institutions with varying protocols...
May 31, 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29852092/high-frequency-resistance-training-does-not-promote-greater-muscular-adaptations-compared-to-low-frequencies-in-young-untrained-men
#16
Cintia Barcelos, Felipe Damas, Sanmy Rocha Nóbrega, Carlos Ugrinowitsch, Manoel Emílio Lixandrão, Lucas Marcelino Eder Dos Santos, Cleiton Augusto Libardi
The aim of the study was to compare the effect of resistance training (RT) frequencies of five times (RT5), thrice- (RT3) or twice- (RT2) weekly in muscle strength and hypertrophy in young men. Were used a within-subjects design in which 20 participants had one leg randomly assigned to RT5 and the other to RT3 or to RT2. 1 RM and muscle cross-sectional area (CSA) were assessed at baseline, after four (W4) and eight (W8) RT weeks. RT5 resulted in greater total training volume (TTV) than RT3 and RT2 (P = ...
May 31, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29851653/fully-automated-tissue-classifier-for-contrast-enhanced-ct-scans-of-adult-and-pediatric-patients
#17
Elanchezhian Somasundaram, Joanna Deaton, Robert A Kaufman, Samuel Loren Brady
To develop a more consistent fully-automated classifier for all tissues within the trunk and more accurately discriminate between tissues (such as bone) and contrast medium with overlapping high CT numbers&#13; Methods: Twenty-eight contrast enhanced NCAP (neck-chest-abdomen-pelvis) CT scans (4 adult and 3 pediatric patients) were used to train and test a tissue classification pipeline. The classifier output consisted of 6 tissue classes: lung, fat, muscle, solid organ, blood/bowel contrast and bone. The input features for training were selected from 28 2D image filters and 12 3D filters, and one hand crafted spatial feature...
May 31, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29850568/local-hematocrit-fluctuation-induced-by-malaria-infected-red-blood-cells-and-its-effect-on-microflow
#18
Tong Wang, Zhongwen Xing
We investigate numerically the microscale blood flow in which red blood cells (RBCs) are partially infected by Plasmodium falciparum , the malaria parasite. The infected RBCs are modeled as more rigid cells with less deformability than healthy ones. Our study illustrates that, in a 10  μ m microvessel in low-hematocrit conditions (18% and 27%), the Plasmodium falciparum -infected red blood cells ( Pf -IRBCs) and healthy ones first form a train of cells. Because of the slow moving of the Pf -IRBCs, the local hematocrit ( H ct ) near the Pf -IRBCs is then increased, to approximately 40% or even higher values...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29847777/improved-biovolume-estimation-of-microcystis-aeruginosa-colonies-a-statistical-approach
#19
I Alcántara, C Piccini, A M Segura, S Deus, C González, G Martínez de la Escalera, C Kruk
The Microcystis aeruginosa complex (MAC) clusters many of the most common freshwater and brackish bloom-forming cyanobacteria. In monitoring protocols, biovolume estimation is a common approach to determine MAC colonies biomass and useful for prediction purposes. Biovolume (μm3 mL-1 ) is calculated multiplying organism abundance (orgL-1 ) by colonial volume (μm3 org-1 ). Colonial volume is estimated based on geometric shapes and requires accurate measurements of dimensions using optical microscopy. A trade-off between easy-to-measure but low-accuracy simple shapes (e...
May 27, 2018: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/29844848/safe-sleep-practices-of-kansas-birthing-hospitals
#20
Carolyn R Ahlers-Schmidt, Christy Schunn, Cherie Sage, Matthew Engel, Mary Benton
Background: Sleep-related death is tied with congenital anomalies as the leading cause of infant mortality in Kansas, and external risk factors are present in 83% of these deaths. Hospitals can impact caregiver intentions to follow risk-reduction strategies. This project assessed the current practices and policies of Kansas hospitals with regard to safe sleep. Methods: A cross-sectional survey of existing safe sleep practices and policies in Kansas hospitals was performed...
February 2018: Kansas Journal of Medicine
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