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.

scholarly journals Body mass index and waist circumference are better predictors of insulin resistance than total body fat percentage in middle-aged and elderly Taiwanese

Medicine ◽  
2017 ◽  
Vol 96 (39) ◽  
pp. e8126 ◽  
Author(s):  
Yiu-Hua Cheng ◽  
Yu-Chung Tsao ◽  
I-Shiang Tzeng ◽  
Hai-Hua Chuang ◽  
Wen-Cheng Li ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Body Mass Index ◽  
Waist Circumference ◽  
Body Mass ◽  
Body Fat ◽  
Body Fat Percentage ◽  
Middle Aged ◽  
Fat Percentage ◽  
Total Body Fat ◽  
Total Body

scholarly journals Subcutaneous Fat Fibrosis Links Obesity to Insulin Resistance in Chinese Americans

2018 ◽  
Vol 103 (9) ◽  
pp. 3194-3204 ◽  
Author(s):  
Diana L Alba ◽  
Jeffrey A Farooq ◽  
Matthew Y C Lin ◽  
Anne L Schafer ◽  
John Shepherd ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Adipose Tissue ◽  
San Francisco ◽  
Body Fat ◽  
Subcutaneous Fat ◽  
Chinese Americans ◽  
Mrna Levels ◽  
Model Assessment ◽  
Total Body Fat ◽  
Total Body

Abstract Objective Type 2 diabetes presents at a lower body mass index (BMI) in Chinese individuals than in white individuals. We sought to determine the role of subcutaneous adipose tissue (SCAT)–intrinsic factors, vs BMI or adiposity per se, in the vulnerability of Chinese individuals to obesity-associated impairment of insulin sensitivity. Research Design and Methods Thirty-two Chinese and 30 white men and women from a cohort in the San Francisco Bay Area underwent anthropometric measurements, body composition (dual-energy X-ray absorptiometry) analyses, and measurement of fasting plasma glucose and insulin. Forty-eight also provided abdominal SCAT samples for transcriptional and biochemical analyses of tissue fibrosis. Results BMI correlated with total body fat in white (r = 0.74, P < 0.001) but not Chinese individuals, whereas BMI correlated with visceral adipose tissue (VAT) accrual in both ethnicities (r = 0.88 and 0.81, respectively; P < 0.01). Insulin resistance (homeostatic model assessment of insulin resistance) worsened with VAT mass, but not total body fat, in Chinese subjects (r = 0.63, P < 0.01), whereas it worsened with both in white individuals. By contrast, SCAT mRNA levels of genes encoding profibrotic proteins rose remarkably along with both BMI and VAT mass in Chinese but not white subjects. Similarly, SCAT levels of hydroxyproline, an indicator of tissue collagen content that correlated with increasing VAT mass, were higher in Chinese vs white subjects, particularly in the setting of relative insulin resistance. Conclusions Our findings dissociate BMI from adiposity in Chinese individuals and instead highlight SCAT fibrosis as a process linked to visceral adiposity and insulin resistance in this group.

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 Trends in obesity and adiposity measures by race or ethnicity among adults in the United States 2011-18: population based study

BMJ ◽  
2021 ◽  
pp. n365
Author(s):  
Buyun Liu ◽  
Yang Du ◽  
Yuxiao Wu ◽  
Linda G Snetselaar ◽  
Robert B Wallace ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Waist Circumference ◽  
Ethnic Groups ◽  
Body Mass ◽  
Body Fat ◽  
Lean Mass ◽  
The United States ◽  
Population Based ◽  
Body Fat Percentage ◽  
Fat Percentage

AbstractObjectiveTo examine the trends in obesity and adiposity measures, including body mass index, waist circumference, body fat percentage, and lean mass, by race or ethnicity among adults in the United States from 2011 to 2018.DesignPopulation based study.SettingNational Health and Nutrition Examination Survey (NHANES), 2011-18.ParticipantsA nationally representative sample of US adults aged 20 years or older.Main outcome measuresWeight, height, and waist circumference among adults aged 20 years or older were measured by trained technicians using standardized protocols. Obesity was defined as body mass index of 30 or higher for non-Asians and 27.5 or higher for Asians. Abdominal obesity was defined as a waist circumference of 102 cm or larger for men and 88 cm or larger for women. Body fat percentage and lean mass were measured among adults aged 20-59 years by using dual energy x ray absorptiometry.ResultsThis study included 21 399 adults from NHANES 2011-18. Body mass index was measured for 21 093 adults, waist circumference for 20 080 adults, and body fat percentage for 10 864 adults. For the overall population, age adjusted prevalence of general obesity increased from 35.4% (95% confidence interval 32.5% to 38.3%) in 2011-12 to 43.4% (39.8% to 47.0%) in 2017-18 (P for trend<0.001), and age adjusted prevalence of abdominal obesity increased from 54.5% (51.2% to 57.8%) in 2011-12 to 59.1% (55.6% to 62.7%) in 2017-18 (P for trend=0.02). Age adjusted mean body mass index increased from 28.7 (28.2 to 29.1) in 2011-12 to 29.8 (29.2 to 30.4) in 2017-18 (P for trend=0.001), and age adjusted mean waist circumference increased from 98.4 cm (97.4 to 99.5 cm) in 2011-12 to 100.5 cm (98.9 to 102.1 cm) in 2017-18 (P for trend=0.01). Significant increases were observed in body mass index and waist circumference among the Hispanic, non-Hispanic white, and non-Hispanic Asian groups (all P for trend<0.05), but not for the non-Hispanic black group. For body fat percentage, a significant increase was observed among non-Hispanic Asians (30.6%, 29.8% to 31.4% in 2011-12; 32.7%, 32.0% to 33.4% in 2017-18; P for trend=0.001), but not among other racial or ethnic groups. The age adjusted mean lean mass decreased in the non-Hispanic black group and increased in the non-Hispanic Asian group, but no statistically significant changes were found in other racial or ethnic groups.ConclusionsAmong US adults, an increasing trend was found in obesity and adiposity measures from 2011 to 2018, although disparities exist among racial or ethnic groups.

Seasonal patterns in food intake, live mass, and body composition of mature female fallow deer ( Dama dama)

1998 ◽  
Vol 76 (6) ◽  
pp. 1141-1152 ◽  
Author(s):  
M L Weber ◽  
J M Thompson
Keyword(s):  
Body Composition ◽  
Food Intake ◽  
Body Mass ◽  
Body Fat ◽  
Low Energy ◽  
Body Tissue ◽  
Seasonal Patterns ◽  
Total Body Fat ◽  
Total Body ◽  
Seasonal Oscillations

Seasonal oscillations in food intake, live mass, and body component masses were investigated in two groups, each of 4 mature fallow does, which were fed high and low energy density diets ad libitum over a 17-month period. The aim of the experiment was to quantify seasonal patterns of food intake, live mass, and body tissue masses and to assess the effect of high- and low-energy diets on these patterns. Total body fat, muscle, and viscera masses were estimated on 10 occasions using computer-aided tomography. When food intake was expressed in megajoules of metabolisable energy per day, there was little difference between the groups fed the high- and low-energy diets. Food intake showed a clear deviation from a regular annual oscillation during the summer, when intake by both groups was reduced. Seasonal oscillations were apparent in live mass, empty body mass, muscle mass, and total body fat mass, with maximum values in autumn and minimum values in spring. Viscera mass did not show a seasonal pattern but was closely related to food intake. There was a lag phase of 6-7 weeks in the correlation between food intake and live mass and body tissue masses, suggesting that the changes in food intake were a precursor of subsequent changes in live mass and body composition. Further oscillations in muscle and fat masses persisted independently of changes in empty body mass, which indicated a differential change in these components according to season.

Annual Changes in Total Body Fat and Fat-free Mass in Children from 8 to 18 Years in Relation to Changes in Body Mass Index: The Fels Longitudinal Study

2006 ◽  
Vol 904 (1) ◽  
pp. 420-423 ◽  
Author(s):  
ROGER M. SIERVOGEL ◽  
L. MICHELE MAYNARD ◽  
WAYNE A. WISEMANDLE ◽  
ALEX F. ROCHE ◽  
SHUMEI S. GUO ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Longitudinal Study ◽  
Body Mass ◽  
Body Fat ◽  
Fat Free Mass ◽  
Total Body Fat ◽  
Annual Changes ◽  
Total Body

scholarly journals Associations of blood glucose levels with some diabetes risk factors (body mass index, blood pressure and total body fat) in inhabitants of Ho Municipality, Ghana: A cross-sectional survey

2021 ◽  
Vol 21` (01) ◽  
pp. 17365-17378
Author(s):  
Nii Korley Kortei ◽  
◽  
A Koryo-Dabrah ◽  
SK Angmorterh ◽  
D Adedia ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Body Mass Index ◽  
Risk Factor ◽  
Blood Glucose ◽  
Correlation Analysis ◽  
Body Mass ◽  
Body Fat ◽  
Lifestyle Modification ◽  
Total Body Fat ◽  
Total Body

One complex metabolic disorder that can unenviably affect the normal human physiology is diabetes mellitus(DM). It is indeed one of the commonest non-communicable diseases that has heightened to an epidemic level worldwide. For diseases like DM, hypertension, cardiovascular disease, type II DM, and other chronic diseases, body mass index (BMI) is identified as a positive and independent risk factor associated with morbidity and mortality. The objective of the study was to determine the relationships between BMI,blood pressure, and total body fat among inhabitants of peri-urban Ho, Ghana. Across-sectional survey was carried out between May and June,2018,among 132 inhabitants of Ho to determine the prevalence and associations among DM risk factors.The participants were selected by systematic random sampling. Standardized international protocols were used to measure BMI, blood pressure, blood glucose, and total body fat. Out of 132 respondents, majority 96 (72.7%) were female and the most common age group was 54-60 (31.1%). From the BMI classifications, 65 (49.2%) people were of normal weight while 6 (4.5%) were underweight. Total body fat (%) and blood pressure, likewise total body fat and BMI recorded significant associations of values (0.299, p<0.001-systolic; 0.298, p=0.001-diastolic), and 0.585(p<0.001),respectively. On the contrary, there were insignificant associations found between blood glucose and diastolic blood pressure and also blood glucose and systolic blood pressure(0.100, p=0.253)and (0.057. p=0.514),respectively using the Spearman’s correlation analysis. Lastly,the test of association of socio-demographics and anthropometrics revealed there was a significant (p<0.001)correlation between total body fat and BMI using Pearson’s correlation analysis. BMI is closely related to total body fat and blood pressure;hence,education on lifestyle modification needs to be intensified to create awareness among the inhabitants of Ho municipality of Ghana.It is imperative to educate Ghanaians and beyond about the risk factor associations that predispose an individual to DM.

scholarly journals The role of insulin resistance in the relation of visceral, abdominal subcutaneous and total body fat to cardiovascular function

2020 ◽  
Vol 30 (12) ◽  
pp. 2230-2241
Author(s):  
Elisabeth H.M. Paiman ◽  
Renée de Mutsert ◽  
Ralph L. Widya ◽  
Frits R. Rosendaal ◽  
J. Wouter Jukema ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Body Fat ◽  
Cardiovascular Function ◽  
Total Body Fat ◽  
Total Body
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