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Related Concept Videos

Obesity01:24

Obesity

The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
Drug Dosing: Obese Patients01:21

Drug Dosing: Obese Patients

In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
Hypodermis01:02

Hypodermis

The hypodermis (the subcutaneous layer or superficial fascia) is present directly below the dermis. It connects the skin to the underlying fascia (fibrous tissue) of the bones and muscles. It is not strictly a part of the skin, although the border between the hypodermis and dermis can be difficult to distinguish. The hypodermis consists of well-vascularized, loose, areolar connective tissue and adipose tissue, which functions as a mode of fat storage and provides insulation and cushioning for...
Regression Toward the Mean01:52

Regression Toward the Mean

Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when researchers try to extrapolate results...
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

Pharmacokinetics in Obese Patients: Drug Absorption and Distribution

Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...
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Carbohydrate Metabolism

Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in the...

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Assessment of Child Anthropometry in a Large Epidemiologic Study
09:36

Assessment of Child Anthropometry in a Large Epidemiologic Study

Published on: February 2, 2017

Are normal-weight Americans over-fat?

Marie-Pierre St-Onge1

  • 1Department of Medicine, New York Obesity Research Center, St Luke's/Roosevelt Hospital and College of Physicians and Surgeons, Columbia University, New York, New York, USA.

Obesity (Silver Spring, Md.)
|October 28, 2010
PubMed
Summary
This summary is machine-generated.

Recent National Health and Nutrition Examination Surveys (NHANES) data reveal high average body fat percentages in American adults. These findings, even in lower BMI categories, prompt a reevaluation of public health recommendations and overall health status.

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Area of Science:

  • Public Health
  • Human Physiology
  • Nutrition Science

Background:

  • Recent National Health and Nutrition Examination Surveys (NHANES) data provide insights into American adults' body composition.
  • Average body fat percentages for American men and women are approximately 28% and 40%, respectively.

Purpose of the Study:

  • To analyze National Health and Nutrition Examination Surveys (NHANES) data from 1999-2004 regarding American adults' body fat percentage.
  • To examine body fat distribution across different Body Mass Index (BMI) and age categories.

Main Methods:

  • Analysis of cross-sectional data from the National Health and Nutrition Examination Surveys (NHANES) 1999-2004.
  • Categorization of participants by Body Mass Index (BMI) and age groups to assess body fat percentages.

Main Results:

  • Average body fat in American adults is approximately 28% for men and 40% for women.
  • Elevated body fat percentages were observed across various BMI categories, notably in lower BMI ranges.
  • Data indicate high body fat percentages even in individuals not classified as overweight or obese.

Conclusions:

  • The findings challenge conventional assumptions about body fat distribution and health across all BMI categories.
  • There is a need to reconsider the interpretation of body fat data in the context of public health recommendations.
  • Further investigation into the health implications of body fat percentages across the full spectrum of BMI is warranted.