scholarly journals Předsoutěžní redukce tělesné hmotnosti a její vliv na tělesné složení

2013 ◽  
Vol 7 (1) ◽  
pp. 121-126
Author(s):  
Klára Coufalová ◽  
Ivana Kinkorová ◽  
Lucia Malá ◽  
Jan Heller
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Weight Reduction ◽  
Negative Impact ◽  
Fat Free Mass ◽  
Extracellular Water ◽  
The Czech Republic ◽  
Body Weight Reduction ◽  
Multifrequency Bioimpedance ◽  
Total Body

The aim of our study was to monitor changes in individual components of body composition due to reduction in body weight in judo. This precontest weight reduction is very common in combat sports and it can have negative impact not only on performance but also on health. Research group consisted of 11 judoists at the age of 17-27 years belonging to the representation of the Czech Republic. The measurement of body composition had two parts; the first was before body weight reduction and the second part at the end of body weight reduction. For the measurement of body composition we used multifrequency bioimpedance analyzer BIA 2000 - M. The results of our study show that rapid intensive weight reduction is reflected in varying degrees in all parameters of body composition. We noticed a reduction of body weight by an average of 4.7% (approximately 3.8 kg), the weight loss ranged from 1.6 kg to 8.1 kg. The greatest changes in the parameters of body composition were detected in the extracellular water (ECW), there was a decrease of this parameter on average by 13.8 %, while total body water (TBW) decreased by 6.0 %. There was also a reduction in the amount of body fat by 13.2 %, the amount of extracellular mass (ECM) decreased by 9.8 %, the ratio of ECM/BCM by 8.9 % and the amount of fat-free mass (FFM) decreased by 4.0 %. Only in intracellular water (ICW), we noticed a slight increase by 1.4 %, which may be due to the redistribution of body fluids. Changes of particular parameters of body composition were statistically and substantively significant.

scholarly journals Telesné zloženie a distribúcia tekutín u vrcholových hádzanárok

2012 ◽  
Vol 6 (1) ◽  
pp. 99-106
Author(s):  
Lucia Malá ◽  
Tomáš Malý ◽  
František Zahálka ◽  
Martin Tůma ◽  
Jaroslav Teplan
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Cell Mass ◽  
Body Height ◽  
Mean Value ◽  
Fat Free Mass ◽  
Equal Proportion ◽  
Dead Weight ◽  
National Team ◽  
Multifrequency Bioimpedance

The topic of body composition in sport requires a great deal of attention. Excessive adipose tissue acts as a dead weight, especially in situations characteristic for handball – jumps, when body weight must be repeatedly lift ed against gravity during locomotion and jumping. Th e purpose of the study was to determine body composition and distribution of liquids in individual body segments in a national team of female handball players (n = 16, age 24,0±3,5 years, body height 176,0±6,5 cm, body weight 72,5±8,3 kg). Body composition was measured by means of a multifrequency bioimpedance method InBody (Biospace). Th e examined parameters were the following: absolute and relative amount of fat free mass (FFM and  FFM/BW), percentage of fat mass (FM), absolute and relative amount of body cell mass (BCM and BCM/TH), total body water (TBW) distinguishing extracellular water (ECW) and intracellular water (ICW) and distribution of body liquids in individual segments. In the monitored group, we recorded the mean value of TBW = 42,58±3,99. Th e mean value of ICW was 28,92±2,53 l (67.92 %). Th e mean value of ECW was 13.66±1,57 l (32,08 %). FM made 20,16 ± 4,08 %. FFM for the whole sample was 57,82±5,27 kg; in relative values it was 0,80±0,04. Th e mean proportion of BCM in the monitored group was 40,47±3,55 kg, in relative values 0,56 ± 0.03. Monitoring distribution of liquids in the extremities showed a signifi cant diff erence only in the upper extremities (t15 = 5,95; p 0,01). In the lower extremities, we found out an equal proportion of liquids with an insignifi cant diff erence between the observed segments (t15 = 0,41; p > 0,05). Individual parameters of body composition indicate values corresponding to elite sport. Interindividual assessment revealed diff erences in terms of player’s function; however, when assessing parameters of body composition, it is not possible to express clearly the trend in dep endence on player’s function. Results of our study may help as a certain top standard for comparison of body composition in female players of a lower performance level with the aim of optimization and compensation of diff erences.

P5407Body-composition analysis of patients with acute heart failure - preliminary results from the SCALE HF trial

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
F De Ieso ◽  
M Mutke ◽  
J Du Fay De Lavallaz ◽  
C Raichle ◽  
N Brasier ◽  
...  
Keyword(s):  
Heart Failure ◽  
Body Composition ◽  
Body Weight ◽  
Diuretic Therapy ◽  
Total Body Weight ◽  
Body Water ◽  
Extracellular Water ◽  
Raw Data ◽  
Weight Measurement ◽  
Total Body

Abstract Background Guidance for intensified diuretic therapy in acute heart failure (AHF) is mainly based on body weight measurement, frequently leading to a short episode of dehydration with kidney failure after recompensation. In addition, patients often present immobilized due to severe health issues making weight measurement stressful. Purpose Bioelectrical impedance analysis (BIA) may be a more direct approach to guide intensified diuretic therapy analysing patient's body composition. We hypothesized that patient's weight loss during therapy correlates with loss of body water measured by BIA. Therefore, we tested if this method could be an alternative to daily weight measurement. Methods We conducted an observational, single-centre study to evaluate and monitor body composition of patients hospitalised with AHF, adjudicated according to current ESC/HFA guidelines by a cardiologist. We used an eight-electrode, segmental, multi-frequency body composition analyser, previously validated against air displacement plethysmography, whole body MRI, deuterium and sodium bromide dilution. We investigated patients until hospital discharge or latest one day after ending intensified diuretic therapy. Disease specific properties, BIA and weight measurement were assessed daily. Furthermore, we investigated BIA raw data. Results 390 BIA were applied on 76 patients (47 men; 29 women; mean age 76±11 years; mean weight 75.6±15.7 kg). 34 patients presented with global, 27 with left-heart, 8 with right-heart and 7 with not specified AHF. 44 patients presented with pleural effusion. Pearson correlations showed that total body water (r=0.737, p≤0.001) and extracellular water (r=0.69, p≤0.001) correlated each with total body weight. Changes in total body water accurately (within a range of ± 1kg) reflected changes in total body weight in 40.28% of the patients and changes in extracellular water showed a similarly accurate reflection of total body weight change in 68.06% of the patients. BIA raw-data analysis showed significant changes using Wilcoxon test between measurements at the beginning of intensified diuretic therapy and at its end. We found a significant increase of resistance (mean from 334.6±67.5 to 362.8±69.5 Ohm/m; p=0.021) and reactance (mean from 21.3±7.1 to 24.1±6.2 Ohm/m; p=0.009) standardized to patients height and a non-significant increase of phase angle (mean from 3.6±0.9 to 3.8±0.8 °; p=0.149) during hospitalisation. Conclusion BIA is able to estimate changes in total body weight by analysing changes in extracellular body water in patients under intensified diuretic therapy and raw data analysis seems even more accurate and promising. This data derive from a heterogeneous AHF patient group, needing further investigation. Once validated, wearable BIA connected to an automated device monitoring system would enable an easy to use diuretic therapy monitoring for impaired patients or outpatients and could help reducing care efforts.

scholarly journals Effects of ambient temperature on adaptive thermogenesis during maintenance of reduced body weight in mice

2012 ◽  
Vol 303 (4) ◽  
pp. R438-R448 ◽  
Author(s):  
Yann Ravussin ◽  
Charles A. LeDuc ◽  
Kazuhisa Watanabe ◽  
Rudolph L. Leibel
Keyword(s):  
Body Weight ◽  
Energy Expenditure ◽  
Ambient Temperature ◽  
Total Energy ◽  
Weight Reduction ◽  
Total Energy Expenditure ◽  
Fat Free Mass ◽  
Body Weight Reduction ◽  
Reduced Body ◽  
Basal Energy Expenditure

We showed previously that, at ambient room temperature (22°C), mice maintained at 20% below their initial body weight by calorie restriction expend energy at a rate below that which can be accounted for by the decrease of fat and fat-free mass. Food-restricted rodents may become torpid at subthermoneutral temperatures, a possible confounding factor when using mice as human models in obesity research. We examined the bioenergetic, hormonal, and behavioral responses to maintenance of a 20% body weight reduction in singly housed C57BL/6J +/+ and Lep ob mice housed at both 22°C and 30°C. Weight-reduced high-fat-fed diet mice (HFD-WR) showed similar quantitative reductions in energy expenditure—adjusted for body mass and composition—at both 22°C and 30°C: −1.4 kcal/24 h and −1.6 kcal/24 h below predicted, respectively, and neither group entered torpor. In contrast, weight-reduced Lep ob mice (OB-WR) housed at 22°C became torpid in the late lights-off period (0200–0500) but did not when housed at 30°C. These studies indicate that mice with an intact leptin axis display similar decreases in “absolute” energy expenditure in response to weight reduction at both 22°C and 30°C ambient temperature. More importantly, the “percent” decrease in total energy expenditure observed in the HFD-WR compared with AL mice is much greater at 30°C (−19%) than at 22°C (−10%). Basal energy expenditure demands are ∼45% lower in mice housed at 30°C vs. 22°C, since the mice housed at thermoneutrality do not allocate extra energy for heat production. The higher total energy expenditure of mice housed at 22°C due to these increased thermogenic demands may mask physiologically relevant changes in energy expenditure showing that ambient temperature must be carefully considered when quantifying energy metabolism in both rodents and humans.

scholarly journals Stav antropometrických parametrov a telesného zloženia u detí mladšieho školského veku

2017 ◽  
Vol 11 (2) ◽  
pp. 15-27
Author(s):  
Tomáš Hadžega ◽  
Václav Bunc
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Body Fat ◽  
Body Height ◽  
The Body ◽  
Fat Free Mass ◽  
Whole Body ◽  
School Age ◽  
Total Body ◽  
Frequency Apparatus

The aim of our observation was to measure selected anthropometric characteristics and to analyze actual body composition in children of younger school age from elementary schools in Prague. The group consisted of a total of 222 probands, boys (n-117) and girls (n-105) aged 8–11 years (average boys age = 9.0 ± 1.0 years, body height = 139.9 ± 8.6 cm, body weight = 32 ± 7.5 kg, BMI = 16.3 ± 2.4 kg.m–2). Average age girls = 8.9 ± 0.9 years, body height = 137.3 ± 8.8 cm, body weight = 30.5 ± 7.3 kg, BMI = 15.9 ± 2.4 kg.m–2). The BIA 2000 M multi-frequency apparatus (whole-body bioimpedance analysis) was used to analyze the body composition. Children of younger school age showed higher TBW values – total body water (boys 65.5 ± 6.0%, girls 66.6 ± 6.5%), low body fat (boys 16.1 ± 2.4%, girls 16.5 ± 2.9%) and higher ECM/BCM coefficients (boys 1.0 ± 0.13, girls 1.02 ± 0.11). The authors draws, attention to the importance of monitoring other body composition parameters. The percentage of fat-free mass (FFM) and the share of segmental distribution of body fat and muscle mass on individual parts of the human body.

scholarly journals A Comparison of Body Composition Measurements Between Bioelectrical Impedance Analysis (InBody 570) and Air Displacement Plethysmography (BOD POD®)

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1689-1689
Author(s):  
Rawiwan Sirirat ◽  
Celine Heskey ◽  
Christine Wilson ◽  
Edward Bitok ◽  
Julie Jones ◽  
...  
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Total Body Weight ◽  
Impedance Analysis ◽  
Fat Free Mass ◽  
Air Displacement Plethysmography ◽  
Bod Pod ◽  
Total Body

Abstract Objectives The accurate measurement of body composition is important in both research and clinical practice. The aim of this study was to compare the InBody relative to the BOD POD®. The latter is widely recognized as one of the most accurate methods to measure human body composition. Methods In the context of a clinical trial of 35 free-living non-athletic individuals [80% F, ages 40–69 years, BMI 25–34 kg/m2], we compared body composition measurements utilizing Bioelectrical Impedance Analysis (BIA) and Air Displacement Plethysmography (ADP). ADP was conducted in a BOD POD® (Cosmed USA Inc., Concord, CA, USA) and BIA measured using InBody 570 (In Body, Cerritos, CA, USA). Body measurements included total body weight, fat mass and fat-free mass which were obtained in kilograms following manufacturer instructions. Spearman's rank (rs) and Pearson correlations (r) were used to evaluate the agreement between the two instruments. Results The BOD POD® and InBody measurements were strongly correlated. Correlation was strongest for total body weight (rs (35) = .99, P < .0001), followed by fat mass (r (35) = .93, P < .0001). The lowest correlation was observed for fat-free mass (rs (35) = .79, P < .0001). Conclusions The InBody 570 is reliable and compares favorably to the BOD POD®. Hence, it can be used in clinical settings and epidemiological studies as a practical and relatively inexpensive alternative to the BodPod and dual-energy x-ray absorptiometry (DEXA). Funding Sources Nutrition Research Center, School of Public Health, Loma Linda University, Loma Linda, CA, USA.

Body Composition, Hydration, and Related Parameters in Hemodialysis versus Peritoneal Dialysis Patients

2010 ◽  
Vol 30 (2) ◽  
pp. 208-214 ◽  
Author(s):  
Isabel Devolder ◽  
Annick Verleysen ◽  
Denise Vijt ◽  
Raymond Vanholder ◽  
Wim Van Biesen
Keyword(s):  
Body Composition ◽  
Peritoneal Dialysis ◽  
Volume Overload ◽  
Volume Status ◽  
Extracellular Water ◽  
Multivariate Models ◽  
Dialysis Patients ◽  
Multifrequency Bioimpedance ◽  
Total Body ◽  
Composition Monitoring

AimsMaintaining euvolemia is an important goalin patients on renal replacement therapy. However, adequate assessment of volume status in clinical practice is hampered by a lack of accurate measuring tools. A new multifrequency bioimpedance tool has recently been validated. This study compares volume status in peritoneal dialysis (PD) and hemodialysis (HD) patients in a single center.MethodsBody Composition Monitoring (BCM; Fresenius Medical Care, Bad Homburg, Germany) was performed in all patients on PD or HD without contraindication. PD patients were measured with a full abdomen; HD patients were measured at the midweek session, once immediately before and once 20 minutes after dialysis. Clinical overhydration was defined as an overhydration-to-extracellular water ratio of >0.15.ResultsTotal body water, extracellular water, and intracellular water were 33.7 ± 6.9 L versus 31.8 ± 8.1 L vs 33.9 ± 6.7 L, 16.4 ± 3.9 L vs 15.3 ± 4.9 L vs 16.8 ± 3.3 L, and 17.1 ± 6.2 L vs 16.5 ± 4.6 L vs 17.2 ± 3.9 L in the pre-HD, post-HD, and PD patients, respectively ( p = NS). In the pre-HD and the PD patients, overhydration was 1.9 ± 1.7 L and 2.1 ± 2.3 L, whereas post-HD this was only 0.6 ± 1.7 L ( p < 0.001). Clinical overhydration was more prevalent in pre-HD and PD patients compared to post-HD patients (24.1% vs 22.3% vs 10%, p < 0.001). In multivariate models, overhydration was related to age, male gender, and post-HD status.ConclusionAlthough much clinical attention is paid to volume status, 24% of patients still have clinically relevant volume overload. Implementation of a reliable and clinically applicable tool to assess volume status is therefore necessary. It is possible to obtain comparable volume status in PD and HD patients.

Effects of four years' treatment with biosynthetic human growth hormone (GH) on body composition in GH-deficient hypopituitary adults

1996 ◽  
Vol 135 (5) ◽  
pp. 559-567 ◽  
Author(s):  
Kamal AS AI-Shoumer ◽  
Brian Page ◽  
Elizabeth Thomas ◽  
Margaret Murphy ◽  
Salem A Beshyah ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Body Composition ◽  
Body Weight ◽  
Human Growth Hormone ◽  
Serum Insulin ◽  
Human Growth ◽  
Fat Free Mass ◽  
Gh Treatment ◽  
Igf I ◽  
Total Body

Al-Shoumer KAS, Page B, Thomas E, Murphy M, Beshyah SA, Johnston DG. Effects of four years' treatment with biosynthetic human growth hormone (GH) on body composition in GH-deficient hypopituitary adults. Eur J Endocrinol 1996;135:559–67. ISSN 0804–4643 Short-term trials of growth hormone (GH) substitution in hypopituitary adults have shown beneficial effects on body composition. To evaluate the long-term effects on body composition, we followed thirteen GH-deficient adults (GH < 6 mU/l following standard provocative tests) for 4 years of GH replacement. At yearly intervals, serum insulin-like growth factor I (IGF-I), body weight, body mass index (BMI), waist, waist-to-hip circumference ratio (WHR) and resting systolic (SBP) and diastolic blood pressure (DBP) were determined, and body composition was assessed using three independent methods: total body potassium (TBK), bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DXA). Compared to baseline, IGF-I levels increased significantly at 1 (p = 0.0001), 2 (p = 0.0004), 3 (p = 0.006) and 4 years (p = 0.002). Body weight and BMI changed minimally at 1, 2 and 3 years and increased significantly only at the fourth year (p = 0.012 and p = 0.0009, respectively) of GH therapy. Waist and WHR decreased significantly at 1, 2 and 4 years (waist: p = 0.0009, p = 0.0004, p = 0.049; WHR: p = 0.0025, p = 0.012, p = 0.047, respectively). Neither resting SBP nor DBP changed significantly. Fat-free mass (FFM) derived from TBK and BIA increased significantly at 1 (p = 0.004; p = 0.004), 2 (p = 0.003; p = 0.05), 3 (p = 0.005; p = 0.04) and 4 years (p = 0.02; p = 0.002). Using DXA, the increase in FFM was significant at 1 (p = 0.007) and 2 years (p = 0.008) but not at 3 and 4 years. Percentage body fat measured by TBK, BIA and DXA decreased significantly at 1 (p = 0.008; p = 0.003; p = 0.03), 2 (p = 0.018; p = 0.06; p = 0.049) and 4 years (p = 0.03; p = 0.002; p = 0.04). A rise in total body water, calculated from BIA, was observed at 1 year (p = 0.004) and was maintained throughout the treatment period. These data demonstrate that 4 years of GH treatment in hypopituitary adults is associated with sustained improvement in body composition. Kamal AS Al-Shoumer, Unit of Metabolic Medicine, Imperial College School of Medicine at St. Mary's Hospital, Norfolk Place, London W2 1PG, UK

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