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https://www.readbyqxmd.com/read/28880151/salivary-markers-for-quantitative-dehydration-estimation-during-physical-exercise
#1
Matthias Ring, Clemens Lohmueller, Manfred Rauh, Joachim Mester, Bjoern M Eskofier
Salivary markers have been proposed as noninvasive and easy-to-collect indicators of dehydrations during physical exercise. It has been demonstrated that threshold-based classifications can distinguish dehydrated from euhydrated subjects. However, considerable challenges were reported simultaneously, for example, high intersubject variabilities in these markers. Therefore, we propose a machine-learning approach to handle the intersubject variabilities and to advance from binary classifications to quantitative estimations of total body water (TBW) loss...
September 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28830412/body-composition-and-personality-traits-in-so-yang-type-males
#2
Jiwon Yoon, Jiho Nam, Chae Hun Leem, Jong Yeol Kim
BACKGROUND: The purpose of the present study was to examine the body composition of So-Yang type males according to Sasang constitutional medicine, which is popular in Korea. Different Sasang constitutional types are associated with different muscle distributions, body shapes, and disease susceptibilities. We used the Sasang Personality Questionnaire (SPQ) as a measure of the temperament of each Sasang type. METHODS: In total, 953 subjects aged over 20 years were recruited in Korea...
August 22, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28829810/extracellular-overhydration-linked-with-endothelial-dysfunction-in-the-context-of-inflammation-in-haemodialysis-dependent-chronic-kidney-disease
#3
Nicos Mitsides, Tom Cornelis, Natascha J H Broers, Nanda M P Diederen, Paul Brenchley, Frank M van der Sande, Casper G Schalkwijk, Jeroen P Kooman, Sandip Mitra
BACKGROUND: Haemodialysis (HD) patients are predisposed to dysregulated fluid balance leading to extracellular water (ECW) expansion. Fluid overload has been closely linked with outcome in these patients. This has mainly been attributed to cardiac volume overload, but the relation between abnormalities in fluid status with micro- and macrovascular dysfunction has not been studied in detail. We studied the interaction of macro- and microvascular factors in states of normal and over- hydration in HD-dependent CKD...
2017: PloS One
https://www.readbyqxmd.com/read/28751054/the-role-of-bioelectrical-impedance-analysis-nt-probnp-and-inferior-vena-cava-sonography-in-the-assessment-of-body-fluid-volume-in-children-with-nephrotic-syndrome
#4
Hulya Nalcacioglu, Ozan Ozkaya, Kemal Baysal, Hassan Candas Kafali, Bahattin Avci, Demet Tekcan, Gurkan Genc
BACKGROUND: Assessment of volume status and differentiating "underfill" and "overfill" edema is essential in the management of patients with nephrotic syndrome (NS). OBJECTIVES: Our aim was to evaluate the volume status of NS patients by using different methods and to investigate the utility of bioelectrical impedance analysis (BIA) in children with NS. METHODS: The hydration status of 19 patients with NS (before treatment of NS and at remission) and 25 healthy controls was assessed by multifrequency BIA, serum N-terminal-pro-brain natriuretic peptide (NT-proBNP) levels, inferior vena cava (IVC) diameter, left atrium diameter (LAD) and vasoactive hormones...
July 24, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28722029/effects-of-procedure-upright-equilibrium-time-sex-and-bmi-on-the-precision-of-body-fluid-measurements-using-bioelectrical-impedance-analysis
#5
S Thurlow, G Taylor-Covill, P Sahota, B Oldroyd, K Hind
BACKGROUND/OBJECTIVES: Extensive work has addressed the validity of bioimpedance (BIA) measurements and the effect of posture on fluid homeostasis. However, limited research has investigated effects of subject preparation. This study aimed to determine the precision of total body water (TBW) and extracellular water (ECW) measurements using a stand-on multifrequency BIA (MFBIA seca mBCA 514/515), in three pre-test procedures: supine, sitting, and following walking, with specific reference to the influence of sex and body mass index (BMI)...
July 19, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28712143/reliability-of-the-echomri-infants-system-for-water-and-fat-measurements-in-newborns
#6
Tatiana Toro-Ramos, Charles Paley, William W Wong, F Xavier Pi-Sunyer, Wen W Yu, John Thornton, Dympna Gallagher
OBJECTIVE: The precision and accuracy of a quantitative magnetic resonance (EchoMRI Infants) system in newborns were determined. METHODS: Canola oil and drinking water phantoms (increments of 10 g to 1.9 kg) were scanned four times. Instrument reproducibility was assessed from three scans (within 10 minutes) in 42 healthy term newborns (12-70 hours post birth). Instrument precision was determined from the coefficient of variation (CV) of repeated scans for total water, lean mass, and fat measures for newborns and the mean difference between weight and measurement for phantoms...
July 16, 2017: Obesity
https://www.readbyqxmd.com/read/28676829/changes-in-body-water-caused-by-sleep-deprivation-in-taeeum-and-soyang-types-in-sasang-medicine-prospective-intervention-study
#7
Seung Min Hong, Byung Joo Kim, Seungwon Shin, Minwoo Hwang
BACKGROUND: There is a negative relationship between sleep deprivation and health. However, no study has investigated the effect of sleep deprivation on individuals with different body composition. The aim of this study was to determine the differential effect of sleep deprivation in individuals with different body compositions (fluid) according to Soyang type (SY) and Taeeum type (TE). METHODS: Sixty-two cognitively normal, middle-aged people with normal sleep patterns were recruited from the local population...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28676555/composition-of-two-week-change-in-body-weight-under-unrestricted-free-living-conditions
#8
Surabhi Bhutani, Eva Kahn, Esra Tasali, Dale A Schoeller
The composition of weight change has a large impact on energy balance calculations. Composition of long-term weight change interventions is well-documented, but information on short-term weight change under unrestricted free-living conditions is limited. The composition and energy density of the changes in body weight during 2-week free-living conditions were analyzed in adults from two cohorts: cohort 1 (n = 24) included participants from the reproducibility subset of the Observing Protein and Energy Nutrition study; cohort 2 (n = 22) included participants who were studied under free-living conditions in an ongoing study in the Chicago area...
July 2017: Physiological Reports
https://www.readbyqxmd.com/read/28665828/monitoring-volume-status-using-bioelectrical-impedance-analysis-in-chronic-hemodialysis-patients
#9
Chae Rim Kim, Jung-Ho Shin, Jin Ho Hwang, Su Hyun Kim
Fluid overload can be an independent risk factor of cardiovascular events and all-cause death in end-stage renal disease (ESRD) patients on chronic hemodialysis. We performed a retrospective study to investigate whether intermittent control of fluid status decreases the rate of these complications using bioelectrical impedance analysis (BIA). In ESRD patients on chronic hemodialysis, we identified the ratio of extracellular water to total body water (ECW/TBW) every 6 months using InBody S10 (Biospace, Seoul, Korea), which was measured within 30 minutes after dialysis initiation on the first dialysis day of the week...
June 24, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28658347/circulating-omentin-1-might-be-associated-with-metabolic-health-status-in-different-phenotypes-of-body-size
#10
Shahab Alizadeh, Khadijeh Mirzaei, Chonur Mohammadi, Seyed Ali Keshavarz, Zhila Maghbooli
Objective: Adipokines are mediators of body composition and are involved in obesity complications. This study aimed to assess the association of circulating omentin-1, vaspin, and RBP-4 with body composition indices and metabolic health status (MHS) in different phenotypes of body size. Subjects and methods: A total of 350 subjects were included in the current cross-sectional study. Body composition was measured using a body composition analyzer, and serum concentrations of omentin-1, vaspin, and RBP-4 were assessed by ELISA kits...
June 26, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28564640/impact-of-diabetes-on-extracellular-volume-status-in-patients-initiating-peritoneal-dialysis
#11
Aniema Udo, Catriona Goodlad, Andrew Davenport
BACKGROUND: Recent reports have highlighted that diabetic patients with kidney failure are at increased risk of technique failure and transfer to haemodialysis within 90 days of initiating peritoneal dialysis (PD). We wished to determine whether there were differences between diabetic and non-diabetic patients within the first 3 months of starting PD. METHODS: We reviewed results of corresponding bioimpedance and the 1st test of peritoneal membrane function (PET) in consecutive patients, 6-10 weeks after initiating PD electively...
2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28537652/efficacy-and-safety-of-very-low-calorie-ketogenic-diet-a-double-blind-randomized-crossover-study
#12
C Colica, G Merra, A Gasbarrini, A De Lorenzo, G Cioccoloni, P Gualtieri, M A Perrone, S Bernardini, V Bernardo, L Di Renzo, M Marchetti
OBJECTIVE: To verify safety respect to weight loss, cardiometabolic diseases of short-term Very low-calorie ketogenic diets (VLCKDs, <800 kcal day-1). PATIENTS AND METHODS: Randomized cross-over trial with placebo. The study had no. 2 dietary treatment (DT), conducted in two arms: (1) VLCKD1 in which 50% of protein intake is replaced with synthetic amino acids; (2) VLCKD2 with placebo. The VLCKDs (<800 kcal day-1) were different in term of protein content and quality each arm lasted three weeks (wks)...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28530202/effect-of-age-and-blood-pressure-on-determination-of-normal-fluid-status-in-a-general-population-using-whole-body-and-calf-bioimpedance-techniques
#13
Fansan Zhu, Samer R Abbas, Peter Kotanko, Nathan W Levin
Normal fluid status (dry weight) can be identified by hydration markers established in the healthy population. The general population average could be influenced by age with its accompanying physiological changes and/or illness. The aims of this study were (1) to evaluate the effect of age and systolic blood pressure (SBP) on these markers; (2) to compare mean values of hydration markers as assessed by different bioimpedance techniques. Subjects from the general population (n  =  212, males 105, 57...
June 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28514233/energy-balance-over-one-athletic-season
#14
Analiza M Silva, Catarina N Matias, Diana A Santos, Diana Thomas, Anja Bosy-Westphal, Manfred J Müller, Steven B Heymsfield, Luís B Sardinha
INTRODUCTION: Magnitude and variation in energy balance (EB) components over an athletic season are largely unknown. PURPOSE: We investigated the longitudinal changes in EB over one season and explored the association between EB variation and change in the main fat-free mass (FFM) components in highly trained athletes. METHODS: Eighty athletes (54 males; handball, volleyball, basketball, triathlete, and swimming) were evaluated from the beginning of the season to the main competition stage...
August 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28512162/increase-in-extracellular-hydration-status-after-initiating-peritoneal-dialysis-electively
#15
Kwanpeemai Panorchan, Andrew Davenport
Renal replacement therapy is designed to treat uremic symptoms and correct hypervolemia. We hypothesized that starting peritoneal dialysis (PD) should reduce overhydration, and we measured body composition and hydration status using bioimpedance in PD patients prior to training and then at the first assessment of peritoneal membrane function. We studied 100 consecutive patients with a planned start to PD, without peritoneal infections or mechanical catheter problems, mean age 54.7 ± 17.1 years, 57% male and 25% diabetic...
May 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28422530/physiological-changes-following-competition-in-male-and-female-physique-athletes-a-pilot-study
#16
Eric T Trexler, Katie R Hirsch, Bill I Campbell, Abbie E Smith-Ryan
The purpose of the current study was to evaluate changes in body composition, metabolic rate, and hormones during post-competition recovery. Data were collected from natural physique athletes (7 male/8 female) within one week before (T1) competition, within one week after (T2), and 4-6 weeks after (T3) competition. Measures included body composition (fat mass [FM] and lean mass [LM] from ultrasongraphy), resting metabolic rate (RMR; indirect calorimetry), and salivary leptin, testosterone, cortisol, ghrelin, and insulin...
April 19, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28421004/neurosensory-and-cognitive-modifications-in-europe-s-toughest-randoraid-competition-the-transpyr%C3%A3-n%C3%A3-a-extreme-study
#17
Alessandro Tonacci, Simona Mrakic-Sposta, Kristian Ujka, Francesco Sansone, Alice Ferrisi, Guido Giardini, Raffaele Conte, Lorenza Pratali
Introduction: Given the wide proliferation of ultra-long endurance races, it is important to understand the physiological response of the athletes to improve their safety. We evaluated the cognitive and neurosensory effects on ultra-endurance athletes during the Transpyrénéa (866 Km, 65,000 m positive slope), held on the French Pyrenees. Materials and Methods: 40 athletes were enrolled (age 43.8 ± 8.8 years; 36 males). Olfactory and cognitive tests were performed before the race (T0, n = 40), at 166 kms (T1, n = 28), at 418 kms (T2, n = 20), and after the race (T3, 866 kms, n = 13)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28382898/impact-of-food-and-fluid-intake-on-technical-and-biological-measurement-error-in-body-composition-assessment-methods-in-athletes
#18
Ava Kerr, Gary J Slater, Nuala Byrne
Two, three and four compartment (2C, 3C and 4C) models of body composition are popular methods to measure fat mass (FM) and fat-free mass (FFM) in athletes. However, the impact of food and fluid intake on measurement error has not been established. The purpose of this study was to evaluate standardised (overnight fasted, rested and hydrated) v. non-standardised (afternoon and non-fasted) presentation on technical and biological error on surface anthropometry (SA), 2C, 3C and 4C models. In thirty-two athletic males, measures of SA, dual-energy X-ray absorptiometry (DXA), bioelectrical impedance spectroscopy (BIS) and air displacement plethysmography (BOD POD) were taken to establish 2C, 3C and 4C models...
February 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28373014/the-combyn%C3%A2-ecg-adding-haemodynamic-and-fluid-leads-for-the-ecg-part-ii-prediction-of-total-body-water-tbw-extracellular-fluid-ecf-ecf-overload-fat-mass-fm-and-dry-appendicular-muscle-mass-appmm
#19
Falko Skrabal, Georg P Pichler, Mathias Penatzer, Johannes Steinbichl, Anna-Katharina Hanserl, Alfred Leis, Herbert Loibner
Simultaneous with a 12 channel ECG, body composition was analysed by segmental multi-frequency impedance analysis in 101 healthy subjects and in 118 patients with chronic heart failure (CHF, n= 40), chronic renal failure with haemodialysis (HD, n= 20), and miscellaneous internal diseases (n= 58). Whole body DXA and sodium bromide dilution were used as reference methods for total body water (TBW), extracellular fluid (ECF), appendicular muscle mass (AppMM) and fat mass (FM). Empirical prediction equations were developed in a randomized evaluation sample and then evaluated in unknowns...
March 31, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28365067/the-utility-of-a-phase-angle-analysis-in-patients-with-severe-motor-and-intellectual-disabilities
#20
Motomu Yoshida, Kimio Asagiri, Suguru Fukahori, Yoshiaki Tanaka, Naoki Hashizume, Shinji Ishii, Nobuyuki Saikusa, Naruki Higashidate, Daisuke Masui, Naoko Komatsuzaki, Hirotomo Nakahara, Minoru Yagi, Yushiro Yamashita
PURPOSE: The purpose of the present study was to evaluate whether evaluating the phase angle (PhA), in a bioelectrical impedance analysis (BIA) is useful for estimating the nutritional status of severe motor and intellectual disabilities (SMID) patients. SUBJECTS AND METHODS: This retrospective study included 31 SMID patients (mean age: 33.9±13.5years, median age: 29years (range: 18-58years), male/female: 23/8). First, each of the parameters from the total study population and the male and female SMID patients were compared with those of healthy Asian subjects...
March 29, 2017: Brain & Development
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