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Strength and conditioning

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https://www.readbyqxmd.com/read/29786631/comparison-between-elite-and-subelite-swimmers-on-dry-land-and-tumble-turn-leg-extensor-force-time-characteristics
#1
Julian V Jones, David B Pyne, G Greg Haff, Robert U Newton
Jones, JV, Pyne, DB, Haff, GG, and Newton, RU. Comparison between elite and subelite swimmers on dry land and tumble turn leg extensor force-time characteristics. J Strength Cond Res 32(6): 1762-1769, 2018-Elite swimmers demonstrate faster swimming turn times that are potentially a result of having better strength-power characteristics than subelite swimmers. We quantified differences between dry-land and swimming turn force-time characteristics in elite swimmers and subelite swimmers. Subelite (11 males: 17...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786630/effect-of-cadence-on-time-trial-performance-in-recreational-female-cyclists
#2
Patricia L Graham, Robert F Zoeller, Patrick L Jacobs, Michael A Whitehurst
Graham, PL, Zoeller, RF, Jacobs, PL, and Whitehurst, MA. Effect of cadence on time trial performance in recreational female cyclists. J Strength Cond Res 32(6): 1739-1744, 2018-The impact of pedaling cadence on cycling performance remains unresolved especially in female cyclists. The purpose of this study was to determine the effect of cadence on time trial (TT) performance in recreational female cyclists. Ten recreational female cyclists volunteered to participate in this study. Subjects performed 3 exercise sessions: 1 to assess peak oxygen uptake (V[Combining Dot Above]O2peak) and 2 TTs...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786626/observation-of-women-soccer-players-physiology-during-a-single-season
#3
Kathleen M Paulsen, Cory L Butts, Brendon P McDermott
Paulsen, KM, Butts, CL, and McDermott, BP. Observation of women soccer players' physiology during a single season. J Strength Cond Res 32(6): 1702-1707, 2018-The purpose of this study was to observe heart rate (HR) responses in match settings over the course of a conference season in National Collegiate Athletic Association Division I women's soccer. Twenty-one female collegiate soccer players were provided a HR monitor and instructed to wear it for the duration of match play. Player positions included 6 defenders (DEF), 6 midfielders (MID), and 9 forwards (FWD)...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786625/differences-in-glenohumeral-joint-rotation-and-peak-power-output-between-super-league-and-championship-rugby-league-players
#4
Matthew R Haines
Haines, MR. Differences in glenohumeral joint rotation and peak power output between Super League and Championship Rugby League players. J Strength Cond Res 32(6): 1685-1691, 2018-Rugby league is a high-intensity sport with large impact forces sustained during play, resulting in high prevalence of shoulder injury. Consequently, shoulder strength and player power are important considerations for injury prevention and performance. Additionally, professional teams regularly compete against semiprofessional teams, where differences in physical conditioning could be marked...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29786612/a-formalism-for-reference-dosimetry-in-photon-beams-in-the-presence-of-a-magnetic-field
#5
Bram van Asselen, Simon J Woodings, Sara L Hackett, Theo L van Soest, Jan G M Kok, Bas W Raaymakers, Jochem W H Wolthaus
A generic formalism is proposed for reference dosimetry in the presence of a magnetic field. Besides the regular correction factors from the conventional reference dosimetry formalisms, two factors are used to take into account magnetic field effects: 1) a dose conversion factor to correct for the change in local dose distribution and 2) a correction of the reading of the dosimeter used for the reference dosimetry measurements. The formalism was applied to the Elekta MRI-Linac, for which the 1.5 T magnetic field is orthogonal to the 7 MV photon beam...
May 22, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29786415/tailoring-crystalline-morphology-by-high-efficiency-nucleating-fiber-towards-high-performance-poly-l-lactide-biocomposites
#6
Tao Gao, Zheng-Min Zhang, Le Li, Rui-Ying Bao, Zhengying Liu, Bang-Hu Xie, Ming-Bo Yang, Wei Yang
In this work, high melting point poly(L-lactide) fiber (hPLLA fiber) with high-efficiency nucleation activity was prepared and introduced into PLLA matrix to prepare fully biodegradable PLLA biocomposites. The highly active nucleating surfaces of hPLLA fiber induced chain ordering and lamellar organization, leading to preferable formation of well-organized PLLA transcrystallinity at the surface of hPLLA fiber in quiescent conditions. The construction of such compact transcrystallinity increased the crystallinity and enhanced the interfacial adhesion, which largely promoted the heat resistance, tensile strength, and barrier property of PLLA biocomposites at a low content of hPLLA fiber...
May 22, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29785242/role-of-oxidative-stress-as-key-regulator-of-muscle-wasting-during-cachexia
#7
REVIEW
Johanna Ábrigo, Alvaro A Elorza, Claudia A Riedel, Cristian Vilos, Felipe Simon, Daniel Cabrera, Lisbell Estrada, Claudio Cabello-Verrugio
Skeletal muscle atrophy is a pathological condition mainly characterized by a loss of muscular mass and the contractile capacity of the skeletal muscle as a consequence of muscular weakness and decreased force generation. Cachexia is defined as a pathological condition secondary to illness characterized by the progressive loss of muscle mass with or without loss of fat mass and with concomitant diminution of muscle strength. The molecular mechanisms involved in cachexia include oxidative stress, protein synthesis/degradation imbalance, autophagy deregulation, increased myonuclear apoptosis, and mitochondrial dysfunction...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29784963/single-entity-resolution-valving-of-nanoscopic-species-in-liquids
#8
Patric Eberle, Christian Höller, Philipp Müller, Maarit Suomalainen, Urs F Greber, Hadi Eghlidi, Dimos Poulikakos
Investigating biological and synthetic nanoscopic species in liquids, at the ultimate resolution of single entity, is important in diverse fields1-5 . Progress has been made6-10 , but significant barriers need to be overcome such as the need for intense fields, the lack of versatility in operating conditions and the limited functionality in solutions of high ionic strength for biological applications. Here, we demonstrate switchable electrokinetic nanovalving able to confine and guide single nano-objects, including macromolecules, with sizes down to around 10 nanometres, in a lab-on-chip environment...
May 21, 2018: Nature Nanotechnology
https://www.readbyqxmd.com/read/29784348/flow-manifold-for-chemical-h-point-standard-addition-method-implemented-to-electrochemical-analysis-based-on-the-capacitance-measurements
#9
Marcin Wieczorek, Maria Madej, Karolina Starzec, Paweł Knihnicki, Anna Telk, Jolanta Kochana, Paweł Kościelniak
The paper presents a novel analytical method for electrochemical potassium determination using gold electrodes with self-assembled thiol monolayers (SATMs) deposited on its surface. The whole analytical procedure was carried out in a dedicated flow manifold using capacitance detection mode. The terminal functional groups on the surface of the dielectric monolayer interacts selectively with the analyte, changing the thickness of the layer depending on the amount of the analyte and the applied voltage, resulting in a change in the registered dielectric capacitance...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29784119/venous-stents-current-status-and-future-directions
#10
Susan M Shamimi-Noori, Timothy W I Clark
Venous outflow obstruction is a dominant contributor to chronic venous disease. Treatment of venous disease has historically been limited by available vascular stent technology not specifically designed for the venous system. The ideal venous stent must provide requisite flexibility, strength, and accurate deployment for the anatomical and pathophysiological conditions of chronic venous disease. Venous stent technology is advancing with multiple dedicated venous stents currently available in Europe and with investigational device exemption studies ongoing in the United States...
June 2018: Techniques in Vascular and Interventional Radiology
https://www.readbyqxmd.com/read/29783230/comprehensive-patterns-of-comorbidity-copd-and-depression-aspects-of-treatment
#11
Natalia V Moisieieva, Liliya V Burya, Anna A Kapustianskaya, Iryna A Kolenko, Maria A Rumyantseva, Oleksii H Shumeiko
OBJECTIVE: Introduction: Data on the prevalence of psychopathological disorders in the exacerbation of chronic obstructive pulmonary disease (COPD) are very heterogeneous. COPD and depression have common predisposing factors. The aim: The aim of the research is to conduct a comprehensive assessment of the effect of paroxetine on the level of depressive disorders in the exacerbation of severe degree COPD in women. PATIENTS AND METHODS: Materials and methods: The study included patients with severe degree COPD and depressive disorder...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783004/-the-thing-that-really-gets-me-is-the-future-symptomatology-in-older-homeless-adults-in-the-hope-home-study
#12
Adam Bazari, Maria Patanwala, Lauren M Kaplan, Colette L Auerswald, Margot B Kushel
CONTEXT: The homeless population is aging. Older homeless adults experience premature development of age-related conditions and an elevated symptom burden. Little is known about symptom experience among older homeless adults. OBJECTIVES: To characterize the experience, understanding, and management of physical, psychological, social (e.g. loneliness), and existential (e.g. regret, loss of dignity) symptoms among older homeless adults. METHODS: We conducted semi-structured interviews from June 2016 through March 2017 with a purposive sample of participants from the HOPE HOME cohort, a longitudinal study of homeless adults ages 50 and older...
May 18, 2018: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/29782815/reprint-of-initial-uncertainty-impacts-statistical-learning-in-sound-sequence-processing
#13
Juanita Todd, Alexander Provost, Lisa Whitson, Daniel Mullens
This paper features two studies confirming a lasting impact of first learning on how subsequent experience is weighted in early relevance-filtering processes. In both studies participants were exposed to sequences of sound that contained a regular pattern on two different timescales. Regular patterning in sound is readily detected by the auditory system and used to form "prediction models" that define the most likely properties of sound to be encountered in a given context. The presence and strength of these prediction models is inferred from changes in automatically elicited components of auditory evoked potentials...
May 18, 2018: Neuroscience
https://www.readbyqxmd.com/read/29782015/experimental-procedure-for-laboratory-studies-of-in-situ-burning-flammability-and-burning-efficiency-of-crude-oil
#14
Laurens van Gelderen, Grunde Jomaas
A new method for the simultaneous study of the flammability and burning efficiency of fresh and weathered crude oil through two experimental laboratory setups is presented. The experiments are easily repeatable compared to operational scale experiments (pool diameter ≥2 m), while still featuring quite realistic in situ burning conditions of crude oil on water. Experimental conditions include a flowing water sub-layer that cools the oil slick and an external heat flux (up to 50 kW/m2 ) that simulates the higher heat feedback to the fuel surface in operational scale crude oil pool fires...
May 1, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781941/cardiopulmonary-demand-of-16-kg-kettlebell-snatches-in-simulated-girevoy-sport
#15
Margaux Chan, Martin J MacInnis, Sarah Koch, Kristin E MacLeod, Keith R Lohse, Maria E Gallo, A William Sheel, Michael S Koehle
Chan, M, MacInnis, MJ, Koch, S, MacLeod, KE, Lohse, KR, Gallo, ME, Sheel, AW, and Koehle, MS. Cardiopulmonary demand of 16-kg kettlebell snatches in simulated Girevoy Sport. J Strength Cond Res XX(X): 000-000, 2018-Kettlebell lifting has become popular both as a strength and conditioning training tool and as a sport in and of itself: Girevoy Sport (GS). Although several kettlebell multimovement protocols have been analyzed, little research has attempted to quantify the aerobic stimulus of the individual events in GS, which could better inform kettlebell-related exercise prescription...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29781937/body-composition-assessment-in-female-national-collegiate-athletic-association-division-i-softball-athletes-as-a-function-of-playing-position-across-a-multiyear-time-frame
#16
Ashley Peart, Danielle Wadsworth, Jessica Washington, Gretchen Oliver
Peart, A, Wadsworth, D, Washington, J, and Oliver, G. Body composition assessment in female National Collegiate Athletic Association division I softball athletes as a function of playing position across a multiyear time frame. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to record changes in total body mass, lean body mass (LBM), fat mass (FM), and body fat percentage (BF%) in female National Collegiate Athletic Association (NCAA) Division I level softball athletes over a multiyear time frame using dual-energy x-ray absorptiometry (iDXA)...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29781713/caregiving-burden-and-psychological-distress-in-chinese-spousal-caregivers-gender-difference-in-the-moderating-role-of-positive-aspects-of-caregiving
#17
Daniel Fu Keung Wong, Ting Kin Ng, Xiao Yu Zhuang
OBJECTIVES: This study endeavors to advance the current literature by examining the gender differences in the caregiving experiences and the stress-buffering role of positive aspects of caregiving (PAC) among Chinese spousal caregivers of frail elders in Hong Kong. METHOD: Forty-nine husband caregivers and 121 wife caregivers of frail elders in Hong Kong (N = 170) responded to the Positive Aspects of Caregiving (PAC) scale, the Zarit Burden Interview (ZBI), the 21-item Depression, Anxiety, and Stress Scales (DASS-21), and demographic questions...
May 21, 2018: Aging & Mental Health
https://www.readbyqxmd.com/read/29781654/is-fatigue-a-disease-specific-or-generic-symptom-in-chronic-medical-conditions
#18
Juliane Menting, Cees J Tack, Gijs Bleijenberg, Rogier Donders, Hal A Droogleever Fortuyn, Jaap Fransen, Martine M Goedendorp, Joke S Kalkman, Riet Strik-Albers, Nens van Alfen, Sieberen P van der Werf, Nicol C Voermans, Baziel G van Engelen, Hans Knoop
OBJECTIVE: Severe fatigue is highly prevalent in various chronic diseases. Disease-specific fatigue models have been developed, but it is possible that fatigue-related factors in these models are similar across diseases. The purpose of the current study was to determine the amount of variance in fatigue severity explained by: (a) the specific disease, (b) factors associated with fatigue across different chronic diseases (transdiagnostic factors), and (c) the interactions between these factors and specific diseases...
June 2018: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/29780400/led-lighting-modification-of-growth-metabolism-yield-and-flour-composition-in-wheat-by-spectral-quality-and-intensity
#19
István Monostori, Márk Heilmann, Gábor Kocsy, Marianna Rakszegi, Mohamed Ahres, Susan B Altenbach, Gabriella Szalai, Magda Pál, Dávid Toldi, Livia Simon-Sarkadi, Noémi Harnos, Gábor Galiba, Éva Darko
The use of light-emitting diode (LED) technology for plant cultivation under controlled environmental conditions can result in significant reductions in energy consumption. However, there is still a lack of detailed information on the lighting conditions required for optimal growth of different plant species and the effects of light intensity and spectral composition on plant metabolism and nutritional quality. In the present study, wheat plants were grown under six regimens designed to compare the effects of LED and conventional fluorescent lights on growth and development, leaf photosynthesis, thiol and amino acid metabolism as well as grain yield and flour quality of wheat...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29780272/experimental-study-on-the-confinement-dependent-characteristics-of-a-utah-coal-considering-the-anisotropy-by-cleats
#20
Bo-Hyun Kim, Gabriel Walton, Mark K Larson, Steve Berry
Characterizing a coal from an engineering perspective for design of mining excavations is critical in order to prevent fatalities, as underground coal mines are often developed in highly stressed ground conditions. Coal pillar bursts involve the sudden expulsion of coal and rock into the mine opening. These events occur when relatively high stresses in a coal pillar, left for support in underground workings, exceed the pillar's load capacity causing the pillar to rupture without warning. This process may be influenced by cleating, which is a type of joint system that can be found in coal rock masses...
May 2018: International Journal of Rock Mechanics and Mining Sciences
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