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https://www.readbyqxmd.com/read/28544940/directional-preference-of-activation-of-abdominal-and-paraspinal-muscles-during-position-control-tasks-in-sitting
#1
Martin Eriksson Crommert, Kylie Tucker, Christopher Holford, Alexander Wight, Donna McCook, Paul Hodges
Controversy exists in the literature regarding antagonist activity of trunk muscles during different types of trunk loading, and the direction-specificity of activation of trunk muscles, particularly the deeper trunk muscles. This study aimed to systematically compare activation of a range of trunk muscles between directions of statically applied loads, and to consider the impact of breathing in this activation. In a semi-seated position, 13 healthy male participants resisted moderate inertial loads applied to the trunk in eight different directions...
May 17, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28544202/breaking-up-sedentary-time-with-seated-upper-body-activity-can-regulate-metabolic-health-in-obese-high-risk-adults-a-randomised-crossover-trial
#2
Matthew McCarthy, Charlotte L Edwardson, Melanie J Davies, Joseph Henson, Alex Rowlands, James King, Danielle H Bodicoat, Kamlesh Khunti, Thomas Yates
AIMS: To investigate the impact of performing short bouts of seated upper body activity on postprandial blood glucose and insulin levels during prolonged sitting. MATERIALS AND METHODS: Participants undertook two 7 · 5 hour experimental conditions in a randomised order: 1) prolonged sitting only 2) sitting interspersed with 5 minutes of seated arm ergometry every 30 minutes. Blood samples were obtained while fasting and throughout the postprandial period following ingestion of two standardised meals...
May 23, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28543847/validation-of-sensewear-armband-in-children-adolescents-and-adults
#3
Guillermo Antonio Lopez, Jan Christian Brønd, Lars Bo Andersen, Magnus Dencker, Daniel Arvidsson
BACKGROUND: SenseWear Armband (SW) is a multisensor monitor to assess physical activity and energy expenditure. Its prediction algorithms have been updated periodically. PURPOSE: To validate SW in children, adolescents and adults. METHODS: The most recent SW algorithm 5.2 (SW5.2) and the previous version 2.2 (SW2.2) were evaluated for estimation of energy expenditure during semi-structured activities in 35 children, 31 adolescents and 36 adults with indirect calorimetry as reference...
May 24, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28543731/neuroimaging-biomarkers-and-impaired-olfaction-in-cognitively-normal-individuals
#4
Maria Vassilaki, Teresa J Christianson, Michelle M Mielke, Yonas E Geda, Walter K Kremers, Mary M Machulda, David S Knopman, Ronald C Petersen, Val J Lowe, Clifford R Jack, Rosebud O Roberts
OBJECTIVE: There is a need for inexpensive non-invasive tests to identify older healthy persons at risk for Alzheimer's disease (AD) for enrollment in AD prevention trials. Our objective was to examine whether abnormalities in neuroimaging measures of amyloid and neurodegeneration are correlated with odor identification (OI) in the population-based Mayo Clinic Study of Aging (MCSA). METHODS: Cognitively normal (CN) participants had olfactory function assessed using the Brief Smell Identification Test (B-SIT), underwent magnetic resonance imaging (MRI; n=829) to assess a composite Alzheimer's disease (AD) signature cortical thickness and hippocampal volume (HVa), and, (11) C-Pittsburgh compound B ((11) C-PiB; n=306) and (18) fluorodeoxyglucose ((18) F-FDG; n=305) positron emission tomography (PET) scanning to assess amyloid accumulation and brain hypometabolism, respectively...
May 22, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28543661/building-the-next-bioethics-commission
#5
Alexander M Capron
At every moment, somewhere in the world, a group of men and women are sitting around a table deliberating about an ethical issue posed by medicine and research, whether as a research ethics committee; a hospital or clinical ethics committee; a stem-cell review committee; a gene transfer research committee; a biobank ethics committee; an ethics advisory committee for a medical or nursing association or nongovernmental organization; a state, provincial, national, or intergovernmental bioethics committee; or an ad hoc panel examining a particular development or case...
May 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28543028/correlated-evolution-between-colouration-and-ambush-site-in-predators-with-visual-prey-lures
#6
F M Gawryszewski, M A Calero-Torralbo, R G Gillespie, M A Rodríguez-Gironés, M E Herberstein
The evolution of a visual signal will be affected by signaller and receiver behaviour, and by the physical properties of the environment where the signal is displayed. Crab spiders are typical sit-and-wait predators found in diverse ambush sites, such as tree bark, foliage and flowers. Some of the flower-dweller species present a UV(+) -white visual lure that makes them conspicuous and attractive to their prey. We hypothesised that UV(+) -white colouration was associated with the evolution of a flower-dwelling habit...
May 23, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28542077/physical-activity-sedentary-time-and-risk-of-colorectal-cancer-the-singapore-chinese-health-study
#7
Yvonne L Eaglehouse, Woon-Puay Koh, Renwei Wang, Jin Aizhen, Jian-Min Yuan, Lesley M Butler
Singapore has experienced a marked increase in colorectal cancer incidence over the past 40 years. Evidence from prospective studies in Western Europe and the USA suggests that low physical activity and high amounts of sedentary time are associated with increased colorectal cancer risk. The aim of this study is to evaluate these relationships in an Asian population. The Singapore Chinese Health Study enrolled 63 257 adults between 1993 and 1998. At enrollment, participants reported past year physical activity and time spent sitting...
May 24, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28541048/monoanionic-bis-pyrazolyl-methylborate-ph3b-ch-3-5-ch3-2pz-2-as-a-supporting-ligand-for-copper-i-ethylene-cis-2-butene-and-carbonyl-complexes
#8
Shawn G Ridlen, Naveen V Kulkarni, H V Rasika Dias
The monoanionic bidentate ligand [(Ph3B)CH(3,5-(CH3)2Pz)2)](-) has been prepared from lithium bis(pyrazolyl)methanide and triphenylborane. This useful new ligand is closely related to the well-established bis(pyrazolyl)borate and bis(pyrazolyl)methane ligands but has key differences to both analogues as well. The ethylene, cis-2-butene, and carbon monoxide adducts [(Ph3B)CH(3,5-(CH3)2Pz)2]Cu(L) (where L = C2H4, cis-CH3HC═CHCH3, and CO) have been prepared from [(Ph3B)CH(3,5-(CH3)2Pz)2)]Li(THF), copper(I) triflate, and the corresponding coligand...
May 25, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28540939/rydberg-states-of-alkali-atoms-on-superfluid-helium-nanodroplets-inside-or-outside
#9
Johann V Pototschnig, Florian Lackner, Andreas W Hauser, Wolfgang E Ernst
Electronic excitations of an electron bound to an alkali metal ion inside a droplet of superfluid (4)He are computed via a combination of helium density functional theory and the numerical integration of the Schrödinger equation for a single electron in a modified, He density dependent atomic pseudopotential. The application of a spectral method to the radial part of the valence electron wavefunction allows the computation of highly excited Rydberg states. For low principal quantum numbers, the energy required to push the electron outward is larger than the solvation energy of the ion...
May 25, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28539008/position-in-the-second-stage-of-labour-for-women-without-epidural-anaesthesia
#10
REVIEW
Janesh K Gupta, Akanksha Sood, G Justus Hofmeyr, Joshua P Vogel
BACKGROUND: For centuries, there has been controversy around whether being upright (sitting, birthing stools, chairs, squatting, kneeling) or lying down (lateral (Sim's) position, semi-recumbent, lithotomy position, Trendelenburg's position) have advantages for women giving birth to their babies. This is an update of a review previously published in 2012, 2004 and 1999. OBJECTIVES: To determine the possible benefits and risks of the use of different birth positions during the second stage of labour without epidural anaesthesia, on maternal, fetal, neonatal and caregiver outcomes...
May 25, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28538708/accuracy-in-wrist-worn-sensor-based-measurements-of-heart-rate-and-energy-expenditure-in-a-diverse-cohort
#11
Anna Shcherbina, C Mikael Mattsson, Daryl Waggott, Heidi Salisbury, Jeffrey W Christle, Trevor Hastie, Matthew T Wheeler, Euan A Ashley
The ability to measure physical activity through wrist-worn devices provides an opportunity for cardiovascular medicine. However, the accuracy of commercial devices is largely unknown. The aim of this work is to assess the accuracy of seven commercially available wrist-worn devices in estimating heart rate (HR) and energy expenditure (EE) and to propose a wearable sensor evaluation framework. We evaluated the Apple Watch, Basis Peak, Fitbit Surge, Microsoft Band, Mio Alpha 2, PulseOn, and Samsung Gear S2. Participants wore devices while being simultaneously assessed with continuous telemetry and indirect calorimetry while sitting, walking, running, and cycling...
May 24, 2017: Journal of Personalized Medicine
https://www.readbyqxmd.com/read/28538340/physical-therapy-for-a-child-with-infantile-idiopathic-scoliosis-and-motor-delay
#12
Rhea K Hall, Mary Jane Rapport
PURPOSE: The purpose of this case report is to describe physical therapy (PT) for a child with infantile idiopathic scoliosis and motor delay. KEY POINTS: A 10-month-old boy with a 28° left thoracolumbar scoliosis was referred for PT and was seen weekly in his home over a 6-month period following a diagnosis of scoliosis and delayed gross motor milestones. Before the initiation of PT, the child was scheduled to undergo serial casting for correction of the spinal curve and was not yet rolling or transitioning in or out of sitting...
May 19, 2017: Pediatric Physical Therapy
https://www.readbyqxmd.com/read/28538324/physical-fitness-reference-standards-in-french-youth-the-bouge-program
#13
Jérémy Vanhelst, Julien Labreuche, Laurent Béghin, Elodie Drumez, Paul S Fardy, Didier Chapelot, Jacques Mikulovic, Zékya Ulmer
Vanhelst, J, Julien, JL, Beghin, L, Drumez, E, Fardy, PS, Chapelot, D, Mikulovic, J, and Ulmer, Z. Physical fitness reference standards in French youth: The BOUGE program. J Strength Cond Res 31(6): 1709-1718, 2017-The aim of this study was to establish sex- and age-specific physical fitness percentiles in French youth. A sample of 11,186 children and adolescents (5,546 boys and 5,640 girls), aged between 10 and 15 years, was assessed in the French national BOUGE study. Participants were tested for their cardiorespiratory fitness, muscular endurance, speed, flexibility, and agility using the following tests: 20-m shuttle run tests, curl-ups test, 50-m sprint test, back-saver sit and reach test, and 10 × 5-m shuttle run test...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538167/understanding-the-bioavailability-and-sequestration-of-different-metal-cations-in-the-presence-of-a-biodegradable-chelant-mgda-in-biological-fluids-and-natural-waters
#14
Clemente Bretti, Rosalia Maria Cigala, Concetta De Stefano, Gabriele Lando, Silvio Sammartano
Thermodynamic information about the metal-ligand interaction between Fe(3+), Zn(2+), Cu(2+) and Sn(2+), and a biodegradable ligand as MGDA is reported. The speciation scheme was obtained by means of potentiometric measurements and isothermal titration calorimetry (to determine enthalpy changes) in NaCl medium. The formation of the ML and MLOH species was evidenced for all the metal cations, and for Fe(3+) also the ML2 and ML(OH)2 were found. The relative stability, for the ML species, follows the order: Sn(2+) > Fe(3+) > Cu(2+) > Zn(2+)...
May 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28538039/association-of-physical-activity-and-sitting-time-with-incident-colorectal-cancer-in-postmenopausal-women
#15
Anna M Gorczyca, Charles B Eaton, Michael J LaMonte, David O Garcia, Jeanne D Johnston, Ka He, Aurelian Bidulescu, Deborah Goodman, Erik Groessl, Dorothy Lane, Marcia L Stefanick, Polly Newcomb, Charles Mouton, Andrea K Chomistek
Findings from epidemiological studies have found that physical activity (PA) is associated with a lower risk of colorectal cancer (CRC). Recent studies have found an increased CRC risk with higher sitting time (ST); however, many studies did not include PA as a potential confounder. The objective of this project was to investigate the independent and combined associations of ST and PA with the risk of incident CRC, specifically colon and rectal cancer. Participants in the Women's Health Initiative Observational Study (n=74 870), 50-79 years of age self-reported ST and PA at baseline, years 3 and 6...
May 19, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28538025/a-cluster-rct-to-reduce-workers-sitting-time-impact-on-cardiometabolic-biomarkers
#16
Genevieve N Healy, Elisabeth Ah Winkler, Elizabeth G Eakin, Neville Owen, Anthony D LaMontagne, Marj Moodie, David W Dunstan
PURPOSE: To evaluate the initial and long-term impacts on cardio-metabolic health indicators of the Stand Up Victoria intervention - a 12-month, multicomponent workplace-delivered intervention that successfully reduced overall sitting time, primarily by increasing standing time. METHODS: Office worksites (≥1km apart) from a single organization were cluster randomized to intervention (n=7) or control (n=7). Participants were 136 intervention and 95 control desk-based workers (5-39 per worksite; 68% women; mean±SD age = 45...
May 22, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28537983/comparison-of-the-mallampati-classification-in-sitting-and-supine-position-to-predict-difficult-tracheal-intubation-a-prospective-observational-cohort-study
#17
Jean-Luc Hanouz, Vincent Bonnet, Clément Buléon, Thérèse Simonet, Dorothée Radenac, Guillaume Zamparini, Marc Olivier Fischer, Jean-Louis Gérard
BACKGROUND: The Mallampati classification (MLPT) is normally evaluated in the sitting position. However, many patients cannot be evaluated in the sitting position for medical reasons. Thus, we compared the MLPT in sitting and supine positions in predicting difficult tracheal intubation (DTI). We hypothesized that the diagnostic accuracy of the MLPT performed in sitting and supine positions would differ. METHODS: We performed a single-center prospective observational study in adult patients who received general anesthesia and orotracheal intubation for noncardiac surgery...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28537460/beyond-body-mass-index-using-anthropometric-measures-and-body-composition-indicators-to-assess-odds-of-an-endometriosis-diagnosis
#18
Uba Backonja, Mary L Hediger, Zhen Chen, Diane R Lauver, Liping Sun, C Matthew Peterson, Germaine M Buck Louis
BACKGROUND: Body mass index (BMI) and endometriosis have been inversely associated. To address gaps in this research, we examined associations among body composition, endometriosis, and physical activity. MATERIALS AND METHODS: Women from 14 clinical sites in the Salt Lake City, Utah and San Francisco, California areas and scheduled for laparoscopy/laparotomy were recruited during 2007-2009. Participants (N = 473) underwent standardized anthropometric assessments to estimate body composition before surgery...
May 24, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28536499/decreasing-sedentary-behavior-effects-on-academic-performance-meta-cognition-and-sleep
#19
June J Pilcher, Drew M Morris, Stewart A Bryant, Paul A Merritt, Hayley B Feigl
There is growing interest in using activity workstations as a method of increasing light physical activity in normally sedentary environments. The current study (N = 117) compared the effects of studying in college students while slowly pedaling a stationary bike with a desktop with studying at traditional desks across 10 weeks in an academic semester. The students were assigned to study either on the stationary bike or at a traditional desk located in the campus library for a minimum of 2 h a week. During the 10 weeks, the students studied for tests or worked on other required academic activities while working at their assigned desk...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28535691/measuring-joint-flexibility-in-hallux-rigidus-using-a-novel-flexibility-jig
#20
Elizabeth A Cody, Andrew P Kraszewski, Anca Marinescu, Grace C Kunas, Sriniwasan B Mani, Smita Rao, Howard H Hillstrom, Scott J Ellis
BACKGROUND: The flexibility of the first metatarsophalangeal (MTP) joint in patients with hallux rigidus (HR) has not been studied. Compared to measuring range of motion alone, measures of joint flexibility provide additional information that may prove useful in the assessment of HR. The purpose of this study was to assess the flexibility of the hallux MTP joint in patients with HR compared to controls using a novel flexibility device. METHODS: Fifteen patients with Coughlin stage II or III HR and 20 healthy controls were recruited prospectively...
May 1, 2017: Foot & Ankle International
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