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"Total body water"

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https://www.readbyqxmd.com/read/28204901/the-effect-of-hydration-status-on-the-measurement-of-lean-tissue-mass-by-dual-energy-x-ray-absorptiometry
#1
Clodagh M Toomey, William G McCormack, Phil Jakeman
PURPOSE: Athletes cycle between exercise and recovery. Exercise invokes changes in total body water from thermal sweating, muscle and hepatic glycogen depletion and metabolic water loss. Recovery from exercise results in rehydration, substrate repletion, and possible glycogen supercompensation. Such changes may corrupt the measurement of hydrated tissues, such as lean tissue mass (LTM), by dual-energy X-ray absorptiometry (DXA). The purpose of this study was to determine the effect of exercise and thermal dehydration and subsequent glycogen supercompensation on DXA-based measurement of body composition...
February 16, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28195941/noninvasive-bioelectrical-impedance-for-predicting-clinical-outcomes-in-outpatients-with-heart-failure
#2
Kristin J Lyons, Michelle K Bischoff, Gregg C Fonarow, Tamara B Horwich
BACKGROUND: Noninvasive bioelectrical impedance analysis (BIA) has shown promise in acute heart failure (HF) management. To our knowledge, its use in predicting outcomes in outpatients with chronic HF patients has not been well described. METHODS AND RESULTS: BIA assessment of edema index was performed in 359 outpatients with HF using the InBody 520 scale. Edema index was calculated by dividing extracellular by total body water. Patients were stratified into those with low (≤0...
March 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/28179395/molecular-physiology-of-freeze-tolerance-in-vertebrates
#3
REVIEW
Kenneth B Storey, Janet M Storey
Freeze tolerance is an amazing winter survival strategy used by various amphibians and reptiles living in seasonally cold environments. These animals may spend weeks or months with up to ∼65% of their total body water frozen as extracellular ice and no physiological vital signs, and yet after thawing they return to normal life within a few hours. Two main principles of animal freeze tolerance have received much attention: the production of high concentrations of organic osmolytes (glucose, glycerol, urea among amphibians) that protect the intracellular environment, and the control of ice within the body (the first putative ice-binding protein in a frog was recently identified), but many other strategies of biochemical adaptation also contribute to freezing survival...
April 2017: Physiological Reviews
https://www.readbyqxmd.com/read/28174433/effects-of-proprioceptive-neuromuscular-facilitation-stretching-and-deep-breathing-exercises-on-upper-extremity-lymphedema-in-stroke-patients
#4
Woon Taek Hwang, Yeon-Jae Jeong, Seong-Yeol Kim, Yeon-Gyu Jeong
[Purpose] The purpose of this study was to determine the effects of deep-breathing and proprioceptive neuromuscular facilitation stretching exercises on upper limb lymphedema in stroke patients. [Subjects and Methods] The study consisted of 10 patients with lymphedema that had occurred after stroke. Neurodevelopmental treatment was applied in the same manner as that used for the existing treatment. The subjects performed deep-breathing and stretching exercises three times per week for 4 weeks (12 sessions total)...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28161168/technical-note-evaluating-nuclear-magnetic-resonance-spectroscopy-for-determining-body-composition-in-holstein-dairy-calves-using-deuterium-oxide-dilution-methods
#5
C E Chapman, P Stone Wilkinson, M R Murphy, P S Erickson
Deuterium oxide (D2O) dilution methods have been used to assess body composition in live animals. Estimated body water content can be used to predict body fat and protein, and thus, the amount of energy reserves. It is an alternative method to direct chemical analysis and considered a noninvasive technique that is economical and repeatable. Deuterium oxide use is considered easy, safe, and accurate; however, the traditional methods of analyzing D2O are expensive, tedious, and time consuming. The objective of this study was to evaluate the potential for using nuclear magnetic resonance spectroscopy (NMR) to determine body composition in Holstein dairy heifers...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28156586/the-effectiveness-of-nutritional-sensitive-approach-to-restore-physical-activity-in-cachexic-female-palliative-patients-a-randomized-controlled-trial
#6
(no author information available yet)
: 258 Background: Loss of lean body mass, body fat along with inflammation characterizes cachexia in patients with cancer. Nutrition intervention with counseling may ameliorate undernutrition and metabolic alterations. The aim of this study was to improve nutritional status and quality of life by providing nutrients dense natural food (IAtta) along with counseling. METHODS: Female patients with cancerwith symptoms of cachexia were randomly distributed into placebo (n = 75) and intervention group (n = 75)...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28138765/low-dose-carperitide-%C3%AE-human-a-type-natriuretic-peptide-alleviates-hemoglobin-concentration-decrease-during-prolonged-oral-surgery-a-randomized-controlled-study
#7
Masanori Tsukamoto, Sayuri Koyama, Kanako Esaki, Takashi Hitosugi, Takeshi Yokoyama
PURPOSE: Surgical injury stimulates the renin-angiotensin-aldosterone system (RAAS) and causes antidiuresis, leading to postoperative oliguria. Carperitide (α-human A-type natriuretic peptide) is a cardiac peptide hormone secreted from the atrium. This peptide hormone enhances diuresis by suppressing the RAAS. In our experience, carperitide alleviates decreased hemoglobin (Hb) concentration during elective surgery. In the current study, we investigated the relationship between low-dose carperitide (0...
January 30, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28106545/the-alterations-of-serum-fgf-21-levels-metabolic-and-body-composition-in-early-breast-cancer-patients-receiving-adjuvant-endocrine-therapy
#8
Murat Akyol, Ahmet Alacacioglu, Leyla Demir, Yuksel Kucukzeybek, Yasar Yildiz, Zehra Gumus, Mete Kara, Tarik Salman, Umut Varol, Halil Taskaynatan, Utku Oflazoglu, Vedat Bayoglu, Mustafa Oktay Tarhan
BACKGROUND: In early breast cancer patients, the effects of hormonal therapy (tamoxifen and aromatase inhibitors) on plasma fibroblast growth factor 21 (FGF-21), lipid levels and body composition have not yet been investigated. Therefore, we aimed to analyze the relationship between FGF-21 and body composition as well as the effects of tamoxifen and aromatase inhibitors on plasma lipid levels, FGF-21, and body composition. METHODS: A total of 72 patients were treated with either tamoxifen or aromatase inhibitors due to their menopausal status after adjuvant radiotherapy...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28089477/bioimpedance-and-fluid-status-in-children-and-adolescents-treated-with-dialysis
#9
Gregorio P Milani, Jaap W Groothoff, Federica A Vianello, Emilio F Fossali, Fabio Paglialonga, Alberto Edefonti, Carlo Agostoni, Dario Consonni, Dewi van Harskamp, Johannes B van Goudoever, Henk Schierbeek, Michiel J S Oosterveld
BACKGROUND: Assessment of hydration status in patients with chronic kidney failure treated by dialysis is crucial for clinical management decisions. Dilution techniques are considered the gold standard for measurement of body fluid volumes, but they are unfit for day-to-day care. Multifrequency bioimpedance has been shown to be of help in clinical practice in adults and its use in children and adolescents has been advocated. We investigated whether application of multifrequency bioimpedance is appropriate for total-body water (TBW) and extracellular water (ECW) measurement in children and adolescents on dialysis therapy...
January 12, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28079262/pediatric-obesity-pharmacokinetic-alterations-and-effects-on-antimicrobial-dosing
#10
Stephanie Natale, John Bradley, William Huy Nguyen, Tri Tran, Pamela Ny, Kirsten La, Eva Vivian, Jennifer Le
BACKGROUND: Limited data exist for appropriate drug dosing in obese children. This comprehensive review summarizes pharmacokinetic alterations that occur with age and obesity, and these effects on antimicrobial dosing. A thorough comparison of different measures of body weight and specific antimicrobial agents, including cefazolin, cefepime, ceftazidime, daptomycin, doripenem, gentamicin, linezolid, meropenem, piperacill-tazobactam, tobramycin, vancomycin, and voriconazole, are presented...
January 12, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28074616/is-hemodialysis-patient-survival-dependent-upon-small-solute-clearance-kt-v-if-so-how-can-kt-v-be-adjusted-to-prevent-under-dialysis-in-vulnerable-groups
#11
Andrew Davenport
Small solute clearance achieved during a single hemodialysis session has been traditionally evaluated by urea clearance, normalized for total body water (Kt/Vurea) for more than 30 years. By consensus, the target sessional KtVurea for thrice weekly treatments has been increased from 0.9 to 1.2 over the years. Although this is supported by observational studies, there is a fundamental lack of prospective studies to support this threshold target. In clinical practice achieving sessional Kt/Vurea targets are most closely followed in the US...
January 11, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28033125/validity-of-bmi-based-body-fat-equations-in-men-and-women-a-four-compartment-model-comparison
#12
Brett S Nickerson, Michael R Esco, Phillip A Bishop, Michael V Fedewa, Ronald L Snarr, Brian M Kliszczewicz, Kyung-Shin Park
The purpose of this study was to compare body mass index (BMI)-based body fat percentage (BF%) equations and skinfolds to a four-compartment (4C) model in men and women. One hundred and thirty adults (63 women and 67 men) volunteered to participate (age = 23±5 years). BMI was calculated as weight (kg) divided by height squared (m). BF% was predicted with the BMI-based equations of Jackson et al. (BMIJA), Deurenberg et al. (BMIDE), Gallagher et al. (BMIGA), Zanovec et al. (BMIZA), Womersley and Durnin (BMIWO) and from 7-site skinfolds using the generalized skinfold equation of Jackson et al...
December 20, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27958252/comparison-of-the-body-compositions-in-obese-and-nonobese-individuals-can-learning-body-compositions-motivate-losing-weight
#13
R Kutlu, F G Cihan
BACKGROUND: Obesity is one of the leading preventable causes of death worldwide. OBJECTIVE: To compare body compositions in obese and nonobese individuals. METHODS: This cross-sectional study constituted of 428 individuals. Body compositions were determined using the Tanita. RESULTS: Of all the participants, 300 (70.1%) were female. The prevalence of overweight and obesity was 30.8% and 47.7%, respectively. Having low educational level, female gender, not working, being married, and nonsmoker significantly increased more in obese than nonobese (P < 0...
January 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27925328/screening-for-preeclampsia-in-the-first-trimester-the-usefulness-of-maternal-hemodynamics-and-bioimpedence-in-non-obese-patients
#14
Giulia Gagliardi, Grazia Maria Tiralongo, Damiano Lo Presti, Ilaria Pisani, Daniele Farsetti, Barbara Vasapollo, Gian Paolo Novelli, Angela Andreoli, Herbert Valensise
OBJECTIVE: To test if maternal hemodynamics, and bioimpedance, together with the Combined Screening (maternal history, biophysical and biochemical markers), are able to identify normotensive non-obese patients at risk for preeclampsia (PE) and/or intrauterine growth restriction (IUGR) in the first trimester of gestation. METHODS: 150 healthy nulliparous non-obese women (BMI<30Kg/m(2) ) were enrolled in the study in the first trimester of pregnancy and submitted to USCOM to detect hemodynamic parameters, bioimpedence to characterize body composition, and combined screening for preeclampsia (maternal history, biophysical and maternal biochemical markers)...
December 7, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27924959/effects-of-ramadan-fasting-on-body-composition-and-arterial-stiffness
#15
Yusuf Sezen, Ibrahim Halil Altiparmak, Muslihittin Emre Erkus, Aydemir Kocarslan, Zekeriya Kaya, Ozgur Gunebakmaz, Recep Demirbag
OBJECTIVE: To examine the effects of Ramadan fasting on body composition, arterial stiffness and resting heart rate. METHODS: This prospective study was conducted at the Department of Cardiology, Harran University, Sanliurfa, Turkey, during Ramadan 2015, and comprised overweight and obese males. Body composition, arterial stiffness and echocardiography were assessed before and after Ramadan. Body composition was assessed by bioelectrical impedance analysis using segmental body composition analyser...
December 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27898642/manipulation-of-muscle-creatine-and-glycogen-changes-dxa-estimates-of-body-composition
#16
Julia L Bone, Megan L Ross, Kristyen A Tomcik, Nikki A Jeacocke, Will G Hopkins, Louise M Burke
: Standardising a dual x-ray absorptiometry (DXA) protocol is thought to provide a reliable measurement of body composition. PURPOSE: We investigated the effects of manipulating muscle glycogen and creatine content independently and additively on DXA estimates of lean mass. METHOD: Eighteen well-trained male cyclists undertook a parallel group application of creatine loading (n=9) (20 g/d for 5 d loading; 3 g/d maintenance) or placebo (n=9) with crossover application of glycogen loading (12 v 6 g/kg BM/d for 48 h) as part of a larger study involving a glycogen-depleting exercise protocol...
November 28, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27892802/longitudinal-changes-and-correlations-of-bioimpedance-and-anthropometric-measurements-in-pregnancy-simple-possible-bed-side-tools-to-assess-pregnancy-evolution
#17
Gabriele Piuri, Enrico Ferrazzi, Camilla Bulfoni, Luciana Mastricci, Daniela Di Martino, Attilio Francesco Speciani
PURPOSE: The aim of this study was to assess longitudinal changes of bioimpedance analysis compared with anthropometric measurements in low-risk pregnant woman recruited in the first trimester and to observe possible differences in these indices in women who developed high-risk pregnancies. MATERIALS AND METHODS: Bioimpedance indices for the three trimesters of pregnancies were calculated separately for uneventful pregnancies delivered of newborns > the 10th centile...
December 14, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27885225/the-physical-signs-of-impending-dehydration-among-elderly-people-in-nursing-homes-the-association-with-axillary-skin-temperature-humidity-intraoral-moisture-content-and-salivary-components
#18
Mayumi Okuyama, Masumi Nishida
PURPOSE: The aim of the present study was to examine the association between impending dehydration among elderly people in nursing homes and physical signs, including the axillary skin temperature, humidity, intraoral moisture content, and salivary components. METHODS: The study included 78 elderly individuals who required long-term care in a nursing home (11 men and 67 women; average age, 86.6±7.3 years). The elderly subjects were classified in two groups according to their serum osmolality levels: those with levels between the upper limit reference value (292 mOsm/kg H2O) and the diagnostic reference value of dehydration (300 mOsm/kg H2O) were classified into the boundary zone group and those with levels of <292 mOsm/kg H2O were classified into the normal range group...
2016: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/27875499/impact-of-acute-dietary-manipulations-on-dxa-and-bia-body-composition-estimates
#19
Grant M Tinsley, Flor E Morales, Jeffrey S Forsse, Peter W Grandjean
PURPOSE: To examine the effects of acute pre-assessment diets on body composition estimates obtained by dual-energy x-ray absorptiometry (DXA) and bioelectrical impedance analysis (BIA). METHODS: In a counterbalanced design, 48 males and females were provided with two one-day diets: high-carbohydrate diet (9 g CHO/kg) and very low-carbohydrate diet (1 to 1.5 g CHO/kg). For each condition, body composition was assessed in the morning after an overnight fast, in the afternoon after feeding, and the following morning after a second overnight fast...
November 21, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27861264/use-of-b-mode-ultrasound-as-a-body-fat-estimate-in-collegiate-football-players
#20
Parker N Hyde, Kristina L Kendall, Ciaran M Fairman, Nicholas A Coker, Mary E Yarbrough, Steve J Rossi
Hyde, PN, Kendall, KL, Fairman, CM, Coker, NA, Yarbrough, ME, and Rossi, SJ. Utilization of B-mode ultrasound as a body fat estimate in collegiate football players. J Strength Cond Res 30(12): 3525-3530, 2016-The purpose of the present study was to validate a 7-site ultrasound imaging protocol to predict the percent body fat (%BF) in a division I football team. Body composition was estimated by ultrasound, 7-site skinfolds, and the 3-compartment-water (3C-W) model of Siri, using bioimpedance spectroscopy to estimate the total body water and air displacement plethysmography (using BODPOD) to determine the body density...
December 2016: Journal of Strength and Conditioning Research
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