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https://www.readbyqxmd.com/read/29351569/neighborhood-disadvantage-and-body-mass-index-a-study-of-residential-relocation
#1
Jerome N Rachele, Anne Kavanagh, Wendy J Brown, Aislinn M Healy, Gavin Turrell
Natural experiments, such as longitudinal observational studies which follow-up residents as they relocate, provide a strong basis to infer causation between the neighborhood environment and health. This study examined whether changes in the level of neighborhood disadvantage were associated with changes in body mass index (BMI) following residential relocation. This analysis included data from 928 residents who relocated between 2007 and 2013, across four waves of the HABITAT study in Brisbane, Australia. Neighborhood disadvantage was measured using a census-derived composite index...
January 17, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29351494/factors-associated-with-sarcopenia-in-patients-with-colorectal-cancer
#2
Bianca Umbelino de Souza, Nilian Carla Silva Souza, Renata Brum Martucci, Viviane Dias Rodrigues, Nivaldo Barroso de Pinho, Maria Cristina Gonzalez, Carla Maria Avesani
Introduction; Sarcopenia are frequently observed in cancer patients and was associated with poor prognosis. Objectives; to determine the association of nutritional status, body composition, and clinic parameters with sarcopenia in patients with colorectal cancer (CRC). Methods; We conducted a cross-sectional study of 197 patients with CRC. The sarcopenia elements, including lumbar skeletal muscle index (SMI), handgrip strength, and gait speed were measured. The SMI was assessed by computed tomography at third lumbar vertebra...
January 19, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29351383/muscular-performance-and-body-composition-changes-following-multi-versus-combined-multi-and-single-joint-exercises-in-aging-adults
#3
Ewertton de Souza Bezerra, Antônio Renato Pereira Moro, Lucas Bet da Rosa Orssatto, Mariane Eichendorf da Silva, Jeffrey Michael Willardson, Roberto Simão
The aim of the present study was to compare muscular performance and body composition changes following low volume resistance training programs consisting of multi-joint (MJ) exercises (cable chest press and seated row)versus a combination of multi- and single-joint (MJ+SJ) exercises (cable chest press, seated row, biceps curl, and triceps extension). Thirty untrained healthy aging adults were randomly assigned to three groups: MJ (n=11), MJ+SJ (n=11), and Control (n=8). Twelve-repetition maximums (12-RM) for the cable chest press and seated row; localized muscular endurance for the elbow flexors handgrip strength; and body composition were assessed before and after the 8-week training program...
January 19, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29351164/body-mass-index-versus-body-fat-percentage-in-prospective-nfl-athletes-overestimation-of-obesity-rate-in-athletes-at-the-nfl-scouting-combine
#4
Capt Matthew T Provencher, Jorge Chahla, George Sanchez, Mark E Cinque, Nicholas I Kennedy, Jim Whalen, Mark D Price, Gilbert Moatshe, Robert F LaPrade
Obesity has been previously noted as a major issue in the National Football League (NFL), where it has been shown that 97% of all players demonstrate a body mass index (BMI) of ≥25.0 with a reported obesity rate of 56% (BMI ≥30.0). However, BMI does not take into account body composition by mass, and may overestimate prevalence of obesity. The purposes of this study were to (1) determine the validity of BMI as a measure of body fat percentage and obesity in athletes at the NFL Combine, to define the obesity rate based on body fat percentage compared to BMI...
January 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29350938/cyclotron-orbits-of-composite-fermions-in-the-fractional-quantum-hall-regime
#5
Insun Jo, Hao Deng, Yang Liu, L N Pfeiffer, K W West, K W Baldwin, M Shayegan
We study a bilayer GaAs hole system that hosts two distinct many-body phases at low temperatures and high perpendicular magnetic fields. The higher-density (top) layer develops a Fermi sea of composite fermions (CFs) in its half-filled lowest Landau level, while the lower-density (bottom) layer forms a Wigner crystal (WC) as its filling becomes very small. Owing to the interlayer interaction, the CFs in the top layer feel the periodic Coulomb potential of the WC in the bottom layer. We measure the magnetoresistance of the top layer while changing the bottom-layer density...
January 5, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29350197/a-three-dimensional-correction-method-for-predicting-the-readings-of-a-pinpoint-chamber-on-the-cyberknife-sup-%C3%A2-sup-m6%C3%A2-machine
#6
Yongqian Zhang, Edward Brandner, Cihat Ozhasoglu, Ron Lalonde, Dwight E Heron, M Saiful Huq
The use of small fields in radiation therapy techniques has increased substantially in particular in stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT). However, as field size reduces further still, the response of the detector changes more rapidly with field size, and the effects of measurement uncertainties become increasingly significant. This work presents a novel 3D dose volume-to-point correction method to predict the readings of a 0.015cc PinPoint chamber (PTW 31014) for both small static-fields and composite-field dosimetry formed by fixed cones on the CyberKnife® M6™ machine...
January 19, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29349902/association-between-pre-sarcopenia-sarcopenia-and-bone-mineral-density-in-patients-with-chronic-hepatitis-c
#7
Tatiana Bering, Kiara G D Diniz, Marta Paula P Coelho, Diego A Vieira, Maria Marta S Soares, Adriana M Kakehasi, Maria Isabel T D Correia, Rosângela Teixeira, Dulciene M M Queiroz, Gifone A Rocha, Luciana D Silva
BACKGROUND: Preserved skeletal muscle is essential for the maintenance of healthy bone. Loss of bone mineral density (BMD) and muscle strength, considered a predictor of BMD, have been demonstrated in patients with cirrhosis, but they are poorly studied in chronic hepatitis C (CHC) without cirrhosis. Thus, we aimed to evaluate the prevalence of low BMD and its association with body composition, muscle strength, and nutritional status in CHC. METHODS: One hundred and four subjects [mean age, 50...
January 19, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29348925/volume-estimates-in-chronic-hemodialysis-patients-by-the-watson-equation-and-bioimpedance-spectroscopy-and-the-impact-on-the-kt-vurea-calculation
#8
Nazanin Noori, Ron Wald, Arti Sharma Parpia, Marc B Goldstein
Background: Accurate assessment of total body water (TBW) is essential for the evaluation of dialysis adequacy (Kt/Vurea). The Watson formula, which is recommended for the calculation of TBW, was derived in healthy volunteers thereby leading to potentially inaccurate TBW estimates in maintenance hemodialysis recipients. Bioimpedance spectroscopy (BIS) may be a robust alternative for the measurement of TBW in hemodialysis recipients. Objectives: The primary objective of this study was to evaluate the accuracy of Watson formula-derived TBW estimates as compared with TBW measured with BIS...
2018: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/29348199/origins-of-low-symmetry-phases-in-asymmetric-diblock-copolymer-melts
#9
Kyungtae Kim, Akash Arora, Ronald M Lewis, Meijiao Liu, Weihua Li, An-Chang Shi, Kevin D Dorfman, Frank S Bates
Cooling disordered compositionally asymmetric diblock copolymers leads to the formation of nearly spherical particles, each containing hundreds of molecules, which crystallize upon cooling below the order-disorder transition temperature (TODT). Self-consistent field theory (SCFT) reveals that dispersity in the block degrees of polymerization stabilizes various Frank-Kasper phases, including the C14 and C15 Laves phases, which have been accessed experimentally in low-molar-mass poly(isoprene)-b-poly(lactide) (PI-PLA) diblock copolymers using thermal processing strategies...
January 18, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29347876/risk-of-overhydration-and-low-lean-tissue-index-as-measured-using-a-body-composition-monitor-in-patients-on-hemodialysis-a-systemic-review-and-meta-analysis
#10
Seun Deuk Hwang, Jin Ho Lee, Seoung Woo Lee, Joong Kyung Kim, Moon-Jae Kim, Joon Ho Song
Overhydration and sarcopenia, related to an individual's nutritional status, have been associated with increased cardiovascular mortality and poor prognosis in patients on hemodialysis. The purpose of this study was to investigate the prediction of overhydration and sarcopenia on mortality in patients on hemodialysis using a body composition monitor. We conducted a systematic review and meta-analysis using a random-effects model. We searched the Cochrane Central Register, OVID MEDLINE, EMBASE and PubMed databases for all studies published prior to December 9, 2016 and reviewed the reference lists of relevant reviews, registered trials and relevant conference proceedings...
November 2018: Renal Failure
https://www.readbyqxmd.com/read/29346793/epicardial-fat-thickness-in-non-obese-neurologically-impaired-children-association-with-unfavorable-cardiometabolic-risk-profile
#11
Valeria Calcaterra, Hellas Cena, Pietro Mariano Casali, Gianluca Iacobellis, Riccardo Albertini, Mara De Amici, Annalisa de Silvestri, Calogero Comparato, Gloria Pelizzo
BACKGROUND: Cardiovascular risk is reported in disabled children and epicardial fat (EF) is considered an independent predictor of cardiovascular disease (CVD). No data on the EF thickness (EFT) evaluation in disabled children have been published. OBJECTIVE: We investigated EFT in neurologically impaired (NI) children; its relationship with their metabolic profile was also considered. METHODS: Clinical data, body composition estimation, biochemical profile, and ultrasound-measured EFT were performed in 32 disabled patients (12...
January 18, 2018: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29345858/cardiopulmonary-fitness-is-strongly-associated-with-body-cell-mass-and-fat-free-mass
#12
Armin Köhler, Ryan King, Martin Bahls, Stefan Groß, Antje Steveling, Simone Gärtner, Sabine Schipf, Sven Gläser, Henry Völzke, Stephan B Felix, Marcello Ricardo Paulista Markus, Marcus Dörr
BACKGROUND: Peak oxygen uptake (VO2peak) is commonly indexed by total body weight (TBW) to determine cardiopulmonary fitness (CPF). This approach may lead to misinterpretation, particularly in obese subjects. We investigated the normalization of VO2peak by different body composition markers. METHODS: We analyzed combined data of 3,848 subjects (1,914 women; 49.7%), aged 20-90, from two independent cohorts of the population-based Study of Health in Pomerania (SHIP-2 and SHIP-TREND)...
January 18, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29345750/mobility-trajectories-at-the-end-of-life-comparing-clinical-condition-and-latent-class-approaches
#13
June R Lunney, Steven M Albert, Robert Boudreau, Diane Ives, Suzanne Satterfield, Anne B Newman, Tamara Harris
OBJECTIVES: To assess mobility disability trajectories before death in a large sample of very old adults using two analytical approaches to determine how well they corresponded. DESIGN: Decedent sample from the Health, Aging and Body Composition (Health ABC) Study. Data were collected between 1997 and 2015. SETTING: Pittsburgh, Pennsylvania, and Memphis, Tennessee. PARTICIPANTS: Individuals randomly selected from well-functioning white Medicare beneficiaries and all black community residents meeting age criteria (70-79) (N = 3,075)...
January 18, 2018: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/29345473/highly-sensitive-and-ultrastable-skin-sensors-for-biopressure-and-bioforce-measurements-based-on-hierarchical-microstructures
#14
Qi-Jun Sun, Jiaqing Zhuang, Shishir Venkatesh, Ye Zhou, Su-Ting Han, Wei Wu, Ka-Wai Kong, Wen-Jung Li, Xianfeng Chen, Robert K Y Li, Vellaisamy A L Roy
Piezoresistive microsensors are considered to be essential components of the future wearable electronic devices. However, the expensive cost, complex fabrication technology, poor stability, and low yield have limited their developments for practical applications. Here, we present a cost-effective, relatively simple, and high-yield fabrication approach to construct highly sensitive and ultrastable piezoresistive sensors using a bioinspired hierarchically structured graphite/polydimethylsiloxane composite as the active layer...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29345302/body-mass-prediction-from-femoral-volume-and-sixteen-other-femoral-variables-in-the-elderly-bmi-and-adipose-tissue-effects
#15
Tony Chevalier, Jan Pieter Clarys, Philippe Lefèvre, Jean-Pol Beauthier, Stéphane Louryan, Erik Cattrysse
OBJECTIVES: The frequently used prediction equations of body mass do not seem appropriate for elderly individuals. Here, we establish the relationship between femoral dimensions and known body mass in elderly individuals in order to develop prediction formulas and identify the factors affecting their accuracy. MATERIALS AND METHODS: The body mass linear least-squares regression is based on 17 femoral dimensions, including femoral volume, and 66 individuals. Body proportion and composition effects on accuracy are analyzed by means of the body mass index (BMI) and on a subset sample (n = 25), by means of the masses of adipose, bone and muscle tissues...
January 18, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29345200/distinct-niches-within-the-extracellular-matrix-dictate-fibroblast-function-in-cell-free-3d-lung-tissue-cultures
#16
Gerald Burgstaller, Arunima Sengupta, Sarah Vierkotten, Gerhard Preissler, Michael Lindner, Jürgen Behr, Melanie Königshoff, Oliver Eickelberg
Instructive cues from the extracellular matrix (ECM) and their functional interplay with cells play pivotal roles for development, tissue repair, and disease. However, the precise nature of this interplay remains elusive. We used an innovative 3D cell culture ECM model by decellularizing ex vivo lung tissue scaffolds (d3D-LTCs) derived from diseased and healthy mouse lungs, which widely mimics the native (patho)physiological in vivo microenvironment. We successfully repopulated all d3D-LTCs with primary human and murine fibroblasts...
January 18, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29345174/case-study-using-contemporary-behaviour-change-science-to-design-and-implement-an-effective-nutritional-intervention-within-professional-rugby-league
#17
Nessan Costello, Jim McKenna, Louise Sutton, Kevin Deighton, Ben Jones
Designing and implementing successful dietary intervention is integral to the role of sport nutrition professionals as they attempt to positively change the dietary behaviour of athletes. High-performance sport is a time-pressured environment where immediate results can often supersede pursuit of the most effective evidence-based practice. However, efficacious dietary intervention necessitates comprehensive, systematic and theoretical behavioural design and implementation if the habitual dietary behaviours of athletes are to be positively changed...
January 18, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29344931/relationship-between-body-mass-lean-mass-fat-mass-and-limb-bone-cross-sectional-geometry-implications-for-estimating-body-mass-and-physique-from-the-skeleton
#18
Emma Pomeroy, Alison Macintosh, Jonathan C K Wells, Tim J Cole, Jay T Stock
OBJECTIVES: Estimating body mass from skeletal dimensions is widely practiced, but methods for estimating its components (lean and fat mass) are poorly developed. The ability to estimate these characteristics would offer new insights into the evolution of body composition and its variation relative to past and present health. This study investigates the potential of long bone cross-sectional properties as predictors of body, lean, and fat mass. MATERIALS AND METHODS: Humerus, femur and tibia midshaft cross-sectional properties were measured by peripheral quantitative computed tomography in sample of young adult women (n = 105) characterized by a range of activity levels...
January 18, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29344818/dietary-chromium-picolinate-supplementation-affects-growth-whole-body-composition-and-gene-expression-related-to-glucose-metabolism-and-lipogenesis-in-juvenile-blunt-snout-bream-megalobrama-amblycephala
#19
Mingchun Ren, Ahmed Mokrani, Hualiang Liang, Ke Ji, Jun Xie, Xianping Ge, Bo Liu
An 11-week feeding trial was carried out to investigate the effects of supplemented chromium picolinate (Cr-Pic) on the growth, whole-body composition, and relative mRNA expression related to lipogenesis and glucose metabolism in juvenile blunt snout bream. Seven isonitrogenous and isoenergetic diets with graded Cr supplementation levels were fed to triplicate groups. The final weight (FW), feed conversion ratio (FCR), and specific growth rate (SGR) were improved with increasing dietary Cr supplementation levels up to 0...
January 18, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29344030/optimal-cutoff-points-for-anthropometric-variables-to-predict-insulin-resistance-in-polycystic-ovary-syndrome
#20
Hossein Hatami, Seyed Ali Montazeri, Nazanin Hashemi, Fahimeh Ramezani Tehrani
Background: Insulin resistance (IR) is a major cardiometabolic risk factor in females with polycystic ovary syndrome (PCOS). The euglycemic clamp is the gold standard method to measure IR. However, considering the time and cost that it takes, surrogate markers of IR are now widely used. The current study aimed at evaluating the cutoff points of even less invasive anthropometric and body composition variables to predict IR in females with PCOS. Methods: The current cross sectional study selected 224 females with PCOS, using Rotterdam criteria, referred to reproductive endocrinology research center; 88 of which were diagnosed with insulin resistance...
October 2017: International Journal of Endocrinology and Metabolism
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