Predicting body fat using weight–height indices

While body fat is the most accurate measure of obesity, its measurement requires special equipment that can be costly and time consuming to operate. Attention has thus typically focused on the easier to calculate body mass index (BMI). However, the ability of BMI to accurately identify obesity has been increasingly questioned. This paper focuses attention on whether more general body mass indices are appropriate measures of body fat. Using a data set of body fat, height, and weight measurements, general models are estimated which nest a wide variety of weight–height indices as special cases. In the absence of a race and gender categorisation, the conventional BMI was found to be the appropriate index with which to predict body fat. When such a categorisation was made, however, the BMI was never selected as the appropriate index. In general, predicted female body fat was some 10 kg higher than that of a male of identical build and predicted % body fat was over 11 percentage points higher, but age effects were smaller for females. Considerable racial differences in predicted body fat were found for males, but such differences were less marked for females. The implications of this finding for interpreting recent research on the effect of obesity on health, society, and economic factors are considered.     

In the flesh: a poetic inquiry into how fat female employees manage weight-related stigma

ABSTRACT

This paper engages with the question of how fat female employees manage weight-related stigma at work. We use poetic inquiry to show the reader how it feels for our participants to be stigmatized based on their size. We interviewed 22 women who self-identify as full-figured, fat, overweight, or obese. The results consist of six poems, five of which were written by us, the researchers. These ‘tri-voiced poems’ (Leavy 2010b) illustrate the spectrum of affective responses and stigma management strategies that our participants talked about, ranging from feeling anxious, super-smart, impeccable, and funny to rebellious and confident. The sixth poem was written by one of our participants and voices her first-person experiences and perspective. Our aim is to do justice in our writing to the emotions that circulated in the interviews and to make a political statement with regards to the stigmatizing practices in organizations related to size and health.     

Total testosterone levels are correlated to metabolic syndrome components

Introduction: Metabolic syndrome (MetS) is a constellation of interrelated risk factors of metabolic origin. Some studies suggest a possible link between low total testosterone (TT) levels and the presence of MetS.

Aim: To analyze the strength and independence of associations between TT and MetS components in non-diabetic men.

Methods: In this cross-sectional study, 143 non-diabetic men older than 40 were analyzed.

Main outcomes measure: Blood samples were collected to evaluate metabolic profile and TT levels. MetS was defined as the presence of three or more of the following characteristics: fasting blood glucose levels?≥?100?mg/dL, triglyceride?≥?150?mg/dL, HDL-c??102?cm.

Results: Mean age of the study population was 61.5?±?8.61 years old. MetS was present in 47.9% of the individuals. Thirty-four men had low TT and MetS was observed in 23 (70%) against 50 (46%) in those with normal TT (≥?300?ng/dL) (OR 4.94, p?p?=?0.03) and HDL-c (Beta: 0.19; p?=?0.04) remained significantly correlated with TT levels.

Conclusions: Low TT levels were associated with MetS diagnosis. Abdominal obesity was the MetS component independently correlated to low TT levels.     

Demographic and Organizational Variables That Affect Southeastern College and University Student Health Promotion

Abstract

This study examined the relationship between demographic and organizational variables and college student health promotion efforts. Two hundred and forty-one college administrators from 14 southern states were surveyed to determine factors that may affect college student health promotion programming. Enrollment, tuition, affiliation, and highest degree offered were the demographic variables that were examined. The organizational variables were goals, control, motivation, interaction, and decision making. The methods of gathering information regarding student health problems, the kinds of health promotion programs offered, the methods of publicizing the programs, and the extent of student participation in health promotion programs were the dependent variables.

The statistical tests for the effects of the demographic and organizational variables on student health promotion efforts indicate that a relationship does exist. Combined multiple regression analysis equations that include all of the organizational variables demonstrated graphically the effects of interaction among the independent organizational variables and the dependent variables. These combined equations were better predictors of student health promotion programs and services than any of the organizational variables taken separately. Future studies of the factors that affect student participation in health promotion programs, the extent of student participation, and the effects of a student participation should be conducted.     

Gender in/and/of Health Inequalities

The relationship between gender and health inequalities is potentially complicated, raising questions for health and social research, practice and policy. In this paper, I use two population health case studies – obesity and smoking – to explore the interplay between gender and socioeconomic position. The cases show that, on its own, neither dimension of inequality affords a comprehensive picture of these significant risks to public health. Furthermore, historical change in the socioeconomic and gendered distribution of these health risks suggests that gender is best considered as a dynamic and layered form of differentiation, rather than as a simple or stable dichotomy. A more nuanced approach to the analysis of gender and health has the potential to generate both more fruitful research and more effective health and social policy.     

左旋肉碱配合有氧健身运动对肥胖女性的影响

探讨左旋肉碱对肥胖女性体重、体脂含量、血脂水平、最大吸氧量、呼吸商等脂类代谢方面的影响．用16名肥胖女性随机分为对照组与实验组，进行为期12个星期的减脂实验，观察实验前后有关生理生化指标．12个星期后，实验组与对照组相比，体重、体脂含量、血脂水平、RQ（呼吸商）等均有显著下降．因此得出结论：左旋肉碱能有效提高有氧健身运动促进肥胖女性脂肪代谢的作用，增强减肥效果．     

Fat in the Fire? Science,the News Media,and the “Obesity Epidemic”2

In recent years, the “obesity epidemic” has emerged as a putative public health crisis. This article examines the interconnected role of medical science and news reporting in shaping the way obesity is framed as a social problem. Drawing on a sample of scientific publications on weight and health, and press releases and news reporting on these publications, we compare and contrast social problem frames in medical science and news reporting. We find substantial overlap in science and news reporting, but the news media do dramatize more than the studies on which they are reporting and are more likely than the original science to highlight individual blame for weight. This is partly due to the news media’s tendency to report more heavily on the most alarmist and individual‐blaming scientific studies. We find some evidence that press releases also shape which articles receive media coverage and how they are framed.     

The food insecurity―obesity paradox as a vicious cycle for women: inequalities and health

Poverty and income inequality undermine women's health in a myriad of ways. This article discusses findings from the Full Plate Project, which addressed women's experience of food security, obesity, and chronic disease in Atlantic Canada. Through first-hand accounts, it identifies a vicious cycle surrounding the food insecurity–obesity paradox. The cycle's core elements included experiences of poverty, food insecurity and nutritional deprivation, weight gain leading to obesity, stress, and experiences of chronic illness. These mainly qualitative findings provide a vivid and multi-layered analysis of the effects of inequalities on health. A majority of Full Plate participants were lone mothers and unattached women, and existing outside of a two-adult member household framework. The vicious cycles experienced are intertwined and cannot be addressed by compartmentalising elements of health or social services. Evidence indicates that policies must respond fully to the social determinants of health and multiple inequalities related to poverty, gender, age, mobility, disability, location, culture, coping skills, and other dynamics.     

能量摄取、膳食构成及体育锻炼在减肥中的作用

本文论述了能量摄取、膳食构成、体育锻炼与体脂的关系以及在减肥中的作用，并通过对湖北省某高校男、女大学生超重率的调查，发现普通系无论是男生还是女生其超重率一般并不比体育系男女生高（Ｐ＞０．０５）．提出不宜以超重作为评定个体肥胖的标准。     

Body Weight and Matching With a Physically Attractive Romantic Partner

Matching and attribute trade are two perspectives used to explain mate selection. We investigated patterns of matching and trade, focusing on obesity, using Add Health Romantic Pair data (N = 1,405 couples). Obese individuals, relative to healthy weight individuals, were less likely to have physically attractive partners, with this disadvantage greater for women than men, and greater for White women than Black women. Additional education, a more attractive personality, and better grooming increased the probability of having a physically attractive partner and offset the disadvantage of obesity for some individuals. Unexpectedly, we found women, like men, trade education for their partners’ physical attractiveness. Despite evidence of attribute trade, matching with respect to physical characteristics was the dominant mate selection pattern.