GE Prodigy and iDXA Cross Calibration for Measures of Total Body Fat and Lean Mass in Adults

2016 ◽  
Vol 19 (4) ◽  
pp. 534
Author(s):  
K. Hind ◽  
B. Oldroyd
Keyword(s):  
Body Fat ◽  
Lean Mass ◽  
Total Body Fat ◽  
Total Body ◽  
Cross Calibration

scholarly journals Ethnic Variation in Fat and Lean Body Mass and the Association with Insulin Resistance

2009 ◽  
Vol 94 (12) ◽  
pp. 4696-4702 ◽  
Author(s):  
Scott A. Lear ◽  
Simi Kohli ◽  
Gregory P. Bondy ◽  
André Tchernof ◽  
Allan D. Sniderman
Keyword(s):  
Insulin Resistance ◽  
Ethnic Groups ◽  
Body Mass ◽  
Body Fat ◽  
South Asian ◽  
Lean Mass ◽  
South Asians ◽  
Model Assessment ◽  
Total Body Fat ◽  
Total Body

Context: Body fat distribution varies among different ethnic groups, yet less is known regarding differences in lean mass and how this may affect insulin resistance. Objective: Our objective was to compare total body fat to lean mass ratio (F:LM) in Aboriginal, Chinese, European, and South Asian individuals with differences in insulin resistance. Participants, Design, and Setting: Aboriginal (196), Chinese (222), European (202), and South Asian (208) individuals were recruited across a range of body mass index to participate in this cross-sectional community study. Main Outcome Measures: Total body fat, lean mass, and insulin resistance were assessed using homeostasis model assessment (HOMA). Results: After adjustment for confounders and at a given body fat, South Asian men had less lean mass than Aboriginal [3.42 kg less; 95% confidence interval (CI) = 1.55–5.29], Chinese (3.01 kg less; 95% CI = 1.33–4.70), and European (3.57 kg less; 95% CI = 1.82–5.33) men, whereas South Asian women had less lean mass than Aboriginal (1.98 kg less; 95% CI = 0.45–3.50), Chinese (2.24 kg less; 95% CI = 0.81–3.68), and European (2.97 kg less; 95% CI = 1.67–4.27) women. In adjusted models, F:LM was higher in South Asian compared with Chinese and European men and higher in South Asian compared with Aboriginal, Chinese, and European women (P < 0.01 for all). Insulin and HOMA were greatest in South Asians after adjustment; however, these differences were no longer apparent when F:LM was considered. Conclusions: South Asians have a phenotype of high fat mass and low lean mass, which may account for greater levels of insulin and HOMA compared with other ethnic groups.

Efficacy of a Motorized Mechanical Oscillator in Abdominal Fat, Weight, and Waist Circumference Reduction - Two Case Studies

2006 ◽  
Vol 12 (2) ◽  
pp. 30-36
Author(s):  
Chloe ANG ◽  
Teik Hin KOH
Keyword(s):  
Waist Circumference ◽  
Body Fat ◽  
Lean Mass ◽  
Dietary Habits ◽  
Abdominal Fat ◽  
The Other ◽  
Waist Girth ◽  
Total Body Fat ◽  
Mechanical Oscillators ◽  
Total Body

LANGUAGE NOTE | Document text in English; abstract also in Chinese.The importance of reducing health risk associated with high abdominal fat is frequently emphasized. Consequently, in Singapore, we have witnessed good sales on motorized mechanical oscillators touted to induce slimming based on the principles of acupressure. However, to date, no study has been done to evaluate the efficacy of such equipment. This pilot study aims to examine the efficacy of motorized mechanical oscillators in reducing waist circumference, weight and abdominal fat percentage over 4 weeks as well as augment the data on acupressure for weight reduction. Two male subjects, one mildly overweight and the other severely overweight, were recruited. They were required to keep to their existing lifestyles and dietary habits and were instructed to wear the oscillator belt for 30 minutes each time, twice a day, as per instructions given in the manual. The machine was operated using the automatic mode. The results show a slight decrease in total body fat % ascertained by DEXA scans. There was also a reduction in waist circumference and an increase in lean mass in the trunk area in both subjects. Specifically, one participant (mildly overweight) lost 1.2% of total body fat, and 0.7cm on the waist girth but gained 1 kg of lean trunk mass. The other participant (severely overweight), although having lost only 0.2% of total body fat and 1.3cm on the waist girth, lost 1.7 kg in total body weight. He also gained in trunk lean mass that resulted in trunk fat reduction of 0.4%. There appears to be some success in such treatment modality particularly with regard to reducing abdominal fat. Certainly, more work needs to be done and future studies are being considered that will involve bigger sample sizes.調查顯示腹部脂肪的累積能引起健康危害，因此減少腹部脂肪的重要性需要廣泛重視的。在新加坡，瘦身產品如動力化的機械擺動瘦身帶都獲得非常好的銷售額。此瘦身帶是以穴位理療原理為依據而設計開發的。可是至今，這類產品的瘦身效果還沒得到科學證明。這項中間試驗的目的是研究在超過4個星期的時間裏，這類瘦身帶對減少腰圍，體重和腹部脂肪的百分數效果；同時也希望增添用穴位理療原理在減肥方面的資料。在二位男性患者當中，一位屬於輕微超重，而另一位屬於嚴重超重。在這項中間試驗調查中，二位患者接受了為期四周的治療療程。療程包括每日使用本瘦身帶二次，一次療程三十分鐘。除此以外，患者需要保持原本的生活方式和飲食習慣。並遵循指導手冊方法操作。此瘦身帶的操作是採用自動化的方法。由DEXA結果顯示二位元患者的脂肪都有顯微的下降，腰圍也有所減小，並且腹部的肌肉有明顯的增加。其中一位患者(輕微肥胖者)的脂肪減少了1.2%，腰圍減少了0.7公分，而肌肉增加了1公斤。第二位患者的身體脂肪減少了0.2%，腰圍減少了 1.3公分，體重也減輕了1.7公斤。同時肌肉也增加了，這使到他的腹部的脂肪減少了0.4%。由此可見，這類瘦身方法對減少腹部脂肪似乎有效。所以，這方面的調查和研究需要更多的工作。接下來希望進行更廣泛，更大規模的研究。

Longitudinal Analysis of Body Mass and Composition in Survivors of Pediatric Hematological Malignancies After Allogeneic Hematopoietic Stem Cell Transplantation

Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 1991-1991
Author(s):  
Hiroto Inaba ◽  
Jie Yang ◽  
Sue Kaste ◽  
Christine Hartford ◽  
Megan S Motosue ◽  
...  
Keyword(s):  
Body Mass ◽  
Body Fat ◽  
Lean Mass ◽  
Z Score ◽  
Hematopoietic Stem ◽  
Total Body Fat ◽  
Z Scores ◽  
The Mean ◽  
Total Body

Abstract Abstract 1991 Background: Body mass and composition have been well studied in survivors of childhood cancers, but little is known about these factors in those who have undergone allogeneic hematopoietic stem cell transplantation (allo-HSCT). Methods: We prospectively and longitudinally evaluated changes in body mass index (BMI), changes in the proportion of fat and lean body mass, and associated clinical factors in 179 survivors of pediatric hematologic malignancies after allo-HSCT. BMI was analyzed as an ordinal variable (four percentile categories: underweight, healthy weight, overweight, and obese) and as a continuous variable (Z-score); dual-energy X-ray absorptiometry data were used to derive Z-scores for percent total body fat and lean mass/height2 ratio. Results: With a median follow-up of 6.6 years (range, 1.0–17.7 years), BMI decreased significantly over time (mean Z-score, 0.32 pre-HSCT and −0.60 at 10 years post-HSCT) (Figure; p<0.001). These longitudinal changes differed among pre-HSCT BMI categories (p<0.001). BMI Z-scores of patients who were underweight before HSCT increased over the first 4 years after HSCT and then declined, while those of patients in the other three pre-HSCT BMI categories continuously declined. Although the mean Z-scores for percent fat mass were higher or similar to those of the general population during follow-up (0.305 at 1 year, −0.272 at 10 years), the mean Z-scores of lean mass/height2 ratio remained below that of healthy controls and diminished significantly over time (-0.296 at 1 year, −1.256 at 10 years post-HSCT) (p=0.002). Pre-HSCT BMI categories were strongly associated with post-HSCT BMI values (p<0.001) and with Z-scores of percent total body fat and lean mass/height2 ratio (both p<0.001). Patients who had extensive chronic graft-versus-host disease were significantly more likely to be in the underweight BMI category (p=0.021) and to have a low Z-scores for lean mass/height2 ratio (p<0.001). Younger patients (less than the median age, 11.3 years, at HSCT) had a higher BMI after HSCT than older patients (p<0.001), and female survivors had higher Z-scores of percent total body fat (p=0.005) and lower Z-scores of lean mass/height2 ratio (p=0.025) than male survivors. Conclusions: The finding of a significant decline of BMI and severe loss of lean mass after HSCT indicates a critical need for nutritional education and early intervention for these survivors. Disclosures: No relevant conflicts of interest to declare.

scholarly journals Assessment of Intramuscular Fat and Correlation with Body Composition in Patients with Rheumatoid Arthritis and Spondyloarthritis: A Pilot Study

Nutrients ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 4533
Author(s):  
Marc Villedon de Naide ◽  
Bruno Pereira ◽  
Daniel Courteix ◽  
Frederic Dutheil ◽  
Lucie Cassagnes ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Body Composition ◽  
Pilot Study ◽  
Body Fat ◽  
Lean Mass ◽  
Intramuscular Fat ◽  
Whole Body ◽  
Cardiometabolic Disorders ◽  
Total Body Fat ◽  
Total Body

Rheumatoid arthritis (RA) and spondyloarthritis (SpA) are associated with changes in body composition. Ectopic intramuscular fat (IMAT) may alter muscle function and contribute to cardiometabolic disorders. In a pilot study, we analyzed IMAT in the calf with peripheral quantitative computed tomography (pQCT) and examined correlations between IMAT quantity and body composition parameters. In 20 patients with active RA and 23 with active SpA, IMAT was correlated with visceral fat (VAT; r = 0.5143 and 0.6314, respectively; p < 0.05) and total lean mass (r = 0.5414 and 0.8132, respectively; p < 0.05), but not with whole body fat mass. Total lean mass mediated 16% and 33% of the effects of VAT on IMAT in RA and SpA, respectively. In both RA and SpA, calf muscle area was correlated with total lean mass (r = 0.5940 and r = 0.8597, respectively; p < 0.05) and fat area was correlated with total body fat (r = 0.6767 and 0.5089, respectively; p < 0.05) and subcutaneous fat (r = 0.6526 and 0.5524, respectively; p < 0.05). Fat area was inversely correlated with handgrip and walking tests, and it was associated with disease activity and disability. We showed that ectopic IMAT, measured with pQCT, was correlated with VAT, but not with total body fat, in RA and SpA. This result suggests that metabolically active fat was specifically associated with IMAT.

Total body fat content and fat topography are associated differently with in vivo glucose metabolism in nonobese and obese nondiabetic women

Diabetes ◽  
1992 ◽  
Vol 41 (9) ◽  
pp. 1151-1159 ◽  
Author(s):  
E. Bonora ◽  
S. Del Prato ◽  
R. C. Bonadonna ◽  
G. Gulli ◽  
A. Solini ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Body Fat ◽  
Fat Content ◽  
Body Fat Content ◽  
Total Body Fat ◽  
Total Body

Leptin: a significant indicator of total body fat but not of visceral fat and insulin insensitivity in African-American women

Diabetes ◽  
1996 ◽  
Vol 45 (11) ◽  
pp. 1635-1637 ◽  
Author(s):  
A. Dua ◽  
M. I. Hennes ◽  
R. G. Hoffmann ◽  
D. L. Maas ◽  
G. R. Krakower ◽  
...  
Keyword(s):  
African American ◽  
African American Women ◽  
Body Fat ◽  
Visceral Fat ◽  
American Women ◽  
Total Body Fat ◽  
Total Body ◽  
Insulin Insensitivity

scholarly journals Ethnic and sex differences in visceral, subcutaneous, and total body fat in children and adolescents

Obesity ◽  
2013 ◽  
Vol 21 (6) ◽  
pp. 1251-1255 ◽  
Author(s):  
A. E. Staiano ◽  
S. T. Broyles ◽  
A. K. Gupta ◽  
P. T. Katzmarzyk
Keyword(s):  
Sex Differences ◽  
Children And Adolescents ◽  
Body Fat ◽  
Total Body Fat ◽  
Total Body

scholarly journals Total body fat, abdominal fat, body fat distribution and surrogate markers for health related to adipocyte fatty acid-binding protein (FABP4) in children

2017 ◽  
Vol 30 (4) ◽  
Author(s):  
Magnus Dencker ◽  
Anton Danielson ◽  
Magnus K. Karlsson ◽  
Per Wollmer ◽  
Lars B. Andersen ◽  
...  
Keyword(s):  
Body Fat ◽  
Fatty Acid Binding Protein ◽  
Fat Body ◽  
Community Sample ◽  
Fat Distribution ◽  
Abdominal Fat ◽  
Body Fat Distribution ◽  
Fatty Acid Binding ◽  
Total Body Fat ◽  
Total Body

AbstractBackground:The aim of the study was to assess possible relationships between adipocyte fatty acid-binding protein (FABP4) and total body fat (TBF), abdominal fat, body fat distribution, aerobic fitness, blood pressure, cardiac dimensions and the increase in body fat over 2 years in a community sample of children.Methods:A cross-sectional study was used in a community sample of 170 (92 boys and 78 girls) children aged 8–11 years. TBF and abdominal fat (AFM) were measured by dual-energy X-ray absorptiometry (DXA). TBF was also expressed as percentage of total body mass (BF%), and body fat distribution was calculated as AFM/TBF. Maximal oxygen uptake (VOResults:Partial correlations, with adjustment for sex, between FABP4 vs. ln TBF, ln BF%, ln AFM, AFM/TBF and VOConclusions:Findings from this community-based cohort of young children show that increased body fat and abdominal fat, more abdominal body fat distribution, low fitness, more LVM and increased LA, increased SBP and PP were all associated with increased levels of FABP4. Increase in TBF and abdominal fat over 2 years were also associated with increased levels of FABP4.

The regulation of total body fat: lessons learned from lipectomy studies

2001 ◽  
Vol 25 (1) ◽  
pp. 15-28 ◽  
Author(s):  
Mary Margaret Mauer ◽  
Ruth B.S. Harris ◽  
Timothy J. Bartness
Keyword(s):  
Body Fat ◽  
Lessons Learned ◽  
Total Body Fat ◽  
Total Body
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