scholarly journals The effect of zinc supplementation on body composition and hormone levels related to adiposity among children: a systematic review

2016 ◽  
Vol 19 (16) ◽  
pp. 2924-2939 ◽  
Author(s):  
Inong R Gunanti ◽  
Abdullah Al-Mamun ◽  
Lisa Schubert ◽  
Kurt Z Long
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Developed Countries ◽  
Body Water ◽  
The Body ◽  
Fat Free Mass ◽  
Upper Arm ◽  
Muscle Area ◽  
Hormone Levels ◽  
Total Body

AbstractObjectiveTo provide a comprehensive synthesis of the effects of Zn supplementation on childhood body composition and adiposity-related hormone levels.DesignFive electronic databases were searched for randomized controlled trials of Zn supplementation studies published before 28 February 2015. No statistical pooling of results was carried out due to diversity in study designs.SettingCommunity- or hospital-based, from fourteen developing and developed countries.SubjectsChildren and adolescents aged 0 to 10 years.ResultsSeven of the fourteen studies reported an overall or subgroup effect of Zn supplementation on at least one parameter of body composition, when determined by anthropometric measurements (increased mid upper-arm circumference, triceps skinfold, subscapular skinfold and mid upper-arm muscle area, and decreased BMI). Three out of the fourteen studies reported increased mean value of total body water estimated by bio-impedance analysis and increased fat-free mass estimated by dual energy X-ray absorptiometry and by total body water. Zn supplementation was associated with increased fat-free mass among stunted children. One study found supplementation decreased leptin and insulin concentrations.ConclusionsDue to the use of anthropometry when determining body composition, a majority of the studies could not accurately address whether alterations in the fat and/or fat-free mass components of the body were responsible for the observed changes in body composition. The effect of Zn supplementation on body composition is not consistent but may modify fat-free mass among children with pre-existing growth failure.

scholarly journals Body Composition and Postural Stability in Goalkeepers of the Polish National Junior Handball Team

2018 ◽  
Vol 25 (3) ◽  
pp. 23-28
Author(s):  
Jacek Wilczyński
Keyword(s):  
Body Composition ◽  
Fat Mass ◽  
Total Body Water ◽  
Postural Stability ◽  
Body Water ◽  
The Body ◽  
Fat Free Mass ◽  
Average Load ◽  
Load Point ◽  
Total Body

Abstract Introduction. The aim of the study was to assess the relationship between the body composition and postural stability of goalkeepers representing the Polish National Junior Handball Team. Material and methods. Body composition was assessed by means of bioelectrical impedance analysis. Postural stability was examined using the AccuGait AMTI force platform. Results. The body composition of the subjects was correct. All of the subjects had very good postural stability. Postural sway was higher in the sagittal plane than in the frontal one. Path Length and Average COP Speed were significantly increased during the closedeyes trial. Only Fat Mass (%) and Fat Mass (kg) were significantly directly correlated with Area Ellipse (cm2) (OE, open eyes). Inverse correlations occurred between Fat-Free Mass (kg) and Average Load Point Y (cm) (OE) as well as Average Load Point Y (cm) (CE, closed eyes). Muscle Mass (kg) was significantly inversely correlated with Average Load Point Y (cm) (OE) and also with Average Load Point Y (cm) (CE). Body Mass Index correlated negatively only with Average Load Point Y (cm) (CE). Total Body Water (kg) was significantly inversely correlated with Average Load Point Y (cm) (OE) and also with Average Load Point Y (cm) (CE). However, Total Body Water (%) only correlated negatively with Area Ellipse (cm2) (OE). Conclusions. Postural stability was determined by the composition and structure of the body. Single-sided sports specialisation can lead to static disorders of the body during the developmental period discussed. Therefore, systematic tests are needed to monitor the body composition and postural stability of handball goalkeepers.

scholarly journals Measuring the body composition of elderly subjects: a comparison of methods

1994 ◽  
Vol 72 (1) ◽  
pp. 33-44 ◽  
Author(s):  
J. J. Reilly ◽  
L. A. Murray ◽  
J. Wilson ◽  
J. V. G. A. Durnin
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Body Water ◽  
The Body ◽  
Practical Significance ◽  
Elderly Subjects ◽  
Younger Adults ◽  
Individual Level ◽  
Total Body ◽  
The Individual

There is a paucity of data on differences between methods for the assessment of body composition in elderly subjects. Studies on younger adults suggest that such differences are of some practical significance at the individual level. In the present study the following methods of estimating percentage body fatness (BF%) were compared in healthy elderly men and women (mean age 70 (SD 6) years: densitometry; skinfold thickness; total body water; bioelectrical impedance (BIA) using an age-specific predictive equation and the manufacturers' equation; body mass index (BMI). Though BF% estimates from the various methods tended to be highly correlated with those from densitometry and with each other, differences between methods at the individual level were marked. In particular, the age-specific equations based on BMI and BIA systematically overestimated BF% relative to the other methods. Biases between BF% estimates derived from densitometry, skinfolds, BIA (manufacturers' equation) and total body water were less marked, indicating little evidence of systematic differences between these methods in elderly subjects. Individual differences between methods were slightly greater than those reported in some studies of younger adults, but this may be of little practical significance, and may be considered inevitable in view of variability between and within subjects in the extent to which the underlying assumptions of these two-component methods are met in elderly subjects.

In vivo estimation of body composition of lactating dairy cattle from urea space measurements

2001 ◽  
Vol 2001 ◽  
pp. 206-206 ◽  
Author(s):  
R. E. Agnew ◽  
W J McCaughey ◽  
J.D. McEvoy ◽  
D C Patterson ◽  
M G Porter ◽  
...  
Keyword(s):  
Body Composition ◽  
Body Fat ◽  
Total Body Water ◽  
Body Water ◽  
The Body ◽  
Water Volume ◽  
Plasma Urea ◽  
Space Technique ◽  
Total Body

San Pietro and Rittenberg (1953) reported that urea appeared to meet all the requirements of a satisfactory tracer. Urea is non toxic, not foreign to the body and it shows an even and rapid distribution throughout the total body water without any physiological effect. For these reasons in addition to its easy and accurate measurement, urea is an ideal candidate tracer to estimate empty body water in vivo. Total body water volume (urea space) can be estimated by dividing the total amount of urea infused by the increase in plasma urea concentration from prior to infusion until 12 or 30 minutes after mean infusion time. Kock and Preston (1973) reported significant relationships between urea space measurements and percentage of empty body fat and water in cattle. However, Andrew et al. (1995) using 21 Holstein cows showed that prediction of empty body water using the urea space technique only explained 31 % of the variation. The objective of this experiment was to use the urea dilution technique to estimate the body composition of lactating dairy cows and produce relationships between urea space and body fat and protein content.

scholarly journals Gender Differences in rhGH-Induced Changes in Body Composition in GH-Deficient Adults

2001 ◽  
Vol 86 (9) ◽  
pp. 4161-4165 ◽  
Author(s):  
Jan P. T. Span ◽  
Gerlach F. F. M. Pieters ◽  
Fred G. J. Sweep ◽  
Ad R. M. M. Hermus ◽  
Anthony G. H. Smals
Keyword(s):  
Gender Differences ◽  
Body Composition ◽  
Fat Mass ◽  
Total Body Water ◽  
Body Water ◽  
Fat Free Mass ◽  
Time Intervals ◽  
Rhgh Therapy ◽  
Igf I ◽  
Total Body

In GH-deficient adults, rhGH has pronounced effects on total body water, fat free mass, and fat mass. Recently, we observed a gender difference in IGF-I responsivity to rhGH that was sex steroid dependent. The aim of the present study was to assess the effect of rhGH therapy on body composition parameters with due attention to the gender differences in biological responsiveness to rhGH. Forty-four women [36.9 ± 11.9 yr (mean ± sd)] and 33 men (37.2 ± 13.8 yr) with GH deficiency were studied every 6 months during 2 yr. The treatment goal was to achieve IGF-I levels within the age-adjusted normal range. Total body water, fat free mass, and fat mass were measured by bioimpedantiometry. To reach the treatment goal, the daily rhGH dose (IU/kg/d) had to be significantly higher in women than in men at all time intervals. During rhGH therapy, total body water and fat free mass increased significantly in both men and women (P ≤ 0.01 by ANOVA), but changes were more pronounced in men. Fat mass decreased during rhGH treatment and reached its nadir at 6 months, which was more pronounced in men than in women (P = 0.02 by ANOVA). After the initial decrease, fat mass increased again and reached baseline values after 2 yr of treatment. In both men and women, the total body water and fat free mass increases were closely related to the IGF-I increments (P < 0.001 by Pearson’s correlation test). The decrease in fat mass correlated significantly with the increase in IGF-I in men (r = −0.89, P < 0.001), not in women. Confirming our earlier data, IGF-I responsivity to rhGH was significantly higher in men than in women at all time intervals (P < 0.01 by ANOVA). Total body water and fat free mass responsivities were also higher in men than in women (P < 0.01 by ANOVA). In conclusion, gender differences in IGF-I responsivities to rhGH are accompanied by gender differences in the extent of body composition changes to rhGH. Probably because of these gender differences in IGF-I responsivity, the increases of total body water and fat free mass to rhGH replacement were greater in men than in women. Remarkably, however, in men, only total body water and fat free mass responses relative to changes in IGF-I increased during the 2 yr of rhGH therapy (P= 0.02 and 0.01, respectively, by ANOVA). In our opinion, this phenomenon might be explained by the increasing target organ sensitivity to IGF-I over time.

scholarly journals Between-laboratory comparison of densitometry and bio-electrical impedance measurements

1994 ◽  
Vol 71 (3) ◽  
pp. 309-316 ◽  
Author(s):  
Paul Deurenberg ◽  
Klaas R. Westerterp ◽  
Erica J. M. Velthuis-Te Wierik
Keyword(s):  
Body Composition ◽  
Body Fat ◽  
Total Body Water ◽  
Electrical Impedance ◽  
Normal Weight ◽  
Body Water ◽  
Fat Free Mass ◽  
Lower Amount ◽  
Total Body ◽  
The Relationship

Body composition was measured in nine healthy, normal-weight, weight-stable subjects in three different research centres. In each centre the usual procedures for the measurements were followed. It revealed that the measurement procedures in the three centres were comparable. Body composition was measured in each centre between 09.00 and 13.00 hours after a light breakfast by densitometry (underwater weighing) and bio-electrical impedance. A single, total-body-water determination by D2O dilution was used as a reference value. Body fat determined by densitometry was significantly lower in one centre, which, however, could be completely explained by a lower body weight, probably due to water loss (the subjects refrained for a longer time from food and drinks before the measurements in that centre) and, thus, by violation of the assumptions of Siri's (1961) formula. Also, body impedance was slightly higher in that centre, indicating a lower amount of body water. Mean body fat from densitometry was also slightly lower in that centre compared with body fat determined by D2O dilution. Individual differences between body fat from densitometry and from total body water were relatively large, up to 7% body fat. The relationship between fat-free mass from densitometry and bio-electrical impedance was not different between the centres. It is concluded that differences in the relationship between body composition and bio-electrical impedance, as reported in the literature, may be due to differences in standardization procedures and/or differences in reference population.

Body composition in vivo. IX. The relation of body composition to the tritiated water spaces of ewes and wethers fasted for short periods

1968 ◽  
Vol 19 (2) ◽  
pp. 267 ◽  
Author(s):  
BA Panaretto
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Tritiated Water ◽  
Body Water ◽  
The Body ◽  
Total Body ◽  
Water Space

Correlations are described between tritiated water space, total body water, fat, and protein in sheep subjected to 18–21 hr of fasting. These provide a system for estimating the body composition of living ruminants.

scholarly journals Validation of Bioelectrical Impedance Spectroscopy to Measure Total Body Water in Resistance-Trained Males

2015 ◽  
Vol 25 (5) ◽  
pp. 494-503 ◽  
Author(s):  
Ava Kerr ◽  
Gary Slater ◽  
Nuala Byrne ◽  
Janet Chaseling
Keyword(s):  
Body Composition ◽  
Impedance Spectroscopy ◽  
Total Body Water ◽  
Reference Model ◽  
Reference Method ◽  
Bioelectrical Impedance ◽  
Compartment Model ◽  
Body Water ◽  
Fat Free Mass ◽  
Total Body

The three-compartment (3-C) model of physique assessment (fat mass, fat-free mass, water) incorporates total body water (TBW) whereas the two-compartment model (2-C) assumes a TBW of 73.72%. Deuterium dilution (D2O) is the reference method for measuring TBW but is expensive and time consuming. Multifrequency bioelectrical impedance spectroscopy (BIS SFB7) estimates TBW instantaneously and claims high precision. Our aim was to compare SFB7 with D2O for estimating TBW in resistance trained males (BMI >25kg/m2). We included TBWBIS estimates in a 3-C model and contrasted this and the 2-C model against the reference 3-C model using TBWD2O. TBW of 29 males (32.4 ± 8.5 years; 183.4 ± 7.2 cm; 92.5 ± 9.9 kg; 27.5 ± 2.6 kg/m2) was measured using SFB7 and D2O. Body density was measured by BODPOD, with body composition calculated using the Siri equation. TBWBIS values were consistent with TBWD2O (SEE = 2.65L; TE = 2.6L) as were %BF values from the 3-C model (BODPOD + TBWBIS) with the 3-C reference model (SEE = 2.20%; TE = 2.20%). For subjects with TBW more than 1% from the assumed 73.72% (n = 16), %BF from the 2-C model differed significantly from the reference 3-C model (Slope 0.6888; Intercept 5.093). The BIS SFB7 measured TBW accurately compared with D2O. The 2C model with an assumed TBW of 73.72% introduces error in the estimation of body composition. We recommend TBW should be measured, either via the traditional D2O method or when resources are limited, with BIS, so that body composition estimates are enhanced. The BIS can be accurately used in 3C equations to better predict TBW and BF% in resistance trained males compared with a 2C model.

In vivo estimation of body composition in Belgian Blue double-muscled bulls from urea space and fasted live weight

1999 ◽  
Vol 1999 ◽  
pp. 50-50
Author(s):  
S. De Campeneere ◽  
L.O. Fiems ◽  
J.M. Vanacker ◽  
B.G. Cottyn ◽  
Ch.V. Boucqué
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Live Weight ◽  
Physiological Effect ◽  
Body Water ◽  
The Body ◽  
Water Volume ◽  
Plasma Urea ◽  
Total Body

Urea is non-toxic, not foreign to the body and it shows an even and rapid distribution throughout the total body water without any physiological effect or toxic manifestation. For these reasons and for its easy and accurate measurement, urea is an ideal tracer to estimate body composition in vivo. Total body water volume (urea space) can be estimated by dividing the total amount of urea infused by the increase in plasma urea concentration between prior to infusion and 12, 18 or 24 min after mean infusion time (Preston and Kock, 1973). In this experiment the urea infusion technique was evaluated to estimate body composition of Belgian Blue double-muscled bulls.

scholarly journals Validity of Bioimpedance Spectroscopy in the Assessment of Total Body Water and Body Composition in Wrestlers and Untrained Subjects

2020 ◽  
Vol 17 (24) ◽  
pp. 9433
Author(s):  
Keisuke Shiose ◽  
Emi Kondo ◽  
Rie Takae ◽  
Hiroyuki Sagayama ◽  
Keiko Motonaga ◽  
...  
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Compartment Model ◽  
Body Water ◽  
Fat Free Mass ◽  
Hydration Status ◽  
Dilution Method ◽  
Bioimpedance Spectroscopy ◽  
Japanese Male ◽  
Total Body

Bioimpedance spectroscopy (BIS) is an easy tool to assess hydration status and body composition. However, its validity in athletes remains controversial. We investigated the validity of BIS on total body water (TBW) and body composition estimation in Japanese wrestlers and untrained subjects. TBW of 49 young Japanese male subjects (31 untrained, 18 wrestlers) were assessed using the deuterium dilution method (DDM) and BIS. De Lorenzo’s and Moissl’s equations were employed in BIS for TBW estimation. To evaluate body composition, Siri’s 3-compartment model and published TBW/fat-free mass (FFM) ratio were applied in DDM and BIS, respectively. In untrained subjects, DDM and BIS with de Lorenzo’s equation showed consistent TBW estimates, whereas BIS with Moissl’s equation overestimated TBW (p < 0.001 vs. DDM). DDM and BIS with de Lorenzo’s equation estimated FFM and percent of fat mass consistently, whereas BIS with Moissl’s equation over-estimated and under-estimated them (p < 0.001 vs. DDM). In wrestlers, BIS with de Lorenzo’s and Moissl’s equations assessed TBW similarly with DDM. However, the Bland–Altman analysis revealed a proportional bias for TBW in BIS with de Lorenzo’s equation (r = 0.735, p < 0.001). Body composition assessed with BIS using both equations and DDM were not different. In conclusion, BIS with de Lorenzo’s equation accurately estimates the TBW and body composition in untrained subjects, whereas BIS with Moissl’s equation is more valid in wrestlers. Our results demonstrated the usefulness of BIS for assessing TBW and body composition in Japanese male wrestlers.

Total body water measurement using the 2H dilution technique for the assessment of body composition of Kuwaiti children

2014 ◽  
Vol 18 (2) ◽  
pp. 259-263 ◽  
Author(s):  
Tareq Al-Ati ◽  
Tom Preston ◽  
Suad Al-Hooti ◽  
Nawal Al-Hamad ◽  
Jameela Al-Ghanim ◽  
...  
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Isotope Ratio ◽  
Normal Weight ◽  
Body Water ◽  
Fat Free Mass ◽  
Dilution Technique ◽  
Isotope Ratio Mass Spectrometer ◽  
Kuwaiti Children ◽  
Total Body

AbstractObjectiveThe 2H dilution technique is the reference method to estimate total body water for body composition assessment. The aims of the present study were to establish the total body water technique at the Kuwait Institute for Scientific Research and assess body composition of Kuwaiti children.DesignThe isotope ratio mass spectrometer was calibrated with defined international reference water standards. A non-random sampling approach was used to recruit a convenience sample of Kuwaiti children. A dose of 2H2O, 1–3 g, was consumed after an overnight fast and 2H enrichment in baseline and post-dose urine samples was measured. Total body water was calculated and used to estimate fat-free mass. Fat mass was estimated as body weight minus fat-free mass.SettingThe total body water study was implemented in primary schools.SubjectsSeventy-five boys and eighty-three girls (7–9 years).ResultsMeasurements of the isotope ratio mass spectrometer were confirmed to be accurate and precise. Children were classified as normal weight, overweight or obese according to the WHO based on BMI-for-age Z-scores. Normal-weight and overweight girls had significantly higher percentage body fat (median (range): 32·4 % (24·7–39·3 %) and 38·3 % (29·3–44·2 %), respectively) compared with boys (median (range): 26·5 % (14·2–37·1 %) and 34·6 % (29·9–40·2 %), respectively). No gender difference was found in obese children (median 46·5 % v. 45·6 %).ConclusionsThe establishment of a state-of-the-art stable isotope laboratory for assessment of body composition provides an opportunity to explore a wide range of applications to better understand the relationship between body size, body composition and risk of developing non-communicable diseases in Kuwait.

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