Body Mass Index: How do you measure up?

Written by on July 23, 2020

Body mass index is a measure of body fat that is based upon
an individual’s weight and height. Mathematically speaking it is the measure of
a person’s weight in kilograms divided by the square of height in meters. Since
BMI measures body fatness, it can indicate health problems associated with
weight. This is not a direct measure of body fatness but has been shown to have
similar results to those indicated by skinfold measurements, bioelectrical
impedance, and underwater weighing.

Since the 1970s, the prevalence of obesity has risen, which for adults is having a BMI greater than or equal to 30 k/m2. Since the only information needed for this measurement are height and weight, BMI is an inexpensive and easily accessible tool for clinicians to use as a screening tool. However, the categorization may be too broad.

Below is a table showing the standard weight categories associated
with BMI ranges for adults over age 20.

BMI WEIGHT STATUS
Below 18.5 Underweight
18.5-24.9 Normal or healthy weight
25.0-29.9 Overweight
30.0 and above Obese

Here would be an example of a 5’9” person:

Height Weight Range BMI Weight Status
5’9” 124 lbs or less Below 18.5 Underweight
  125 to 168 lbs 18.5 to 24.9 Normal or healthy weight
  169 to 202 lbs 25.0 to 29.9 Overweight
  203 lbs or more 30 or higher Obese

When it comes to children and teens, gender comes into play.
This is because the amount of body fat changes with age and differs by sex. BMI
for these ages are then categorized by percentile. Obesity for ages 2-19 year
is defined as having a BMI at or above the 95% percentile of children of the
same sex and age. For adults, women tend to have higher BMI than men. When it
comes to ethnicity, African Americans tend to have less body fat than
Caucasians and Asians have more body fat than Caucasians. Older people tend to
have higher BMI, and athletes have lower BMI. The trouble is that athletes may
have a high BMI due to higher muscularity rather than actual body fatness.

People who have higher BMI are at risk for stroke, high
blood pressure, type 2 diabetes, sleep apnea, some cancers, low quality of
life, and high cholesterol. Opponents of this measurement say it does not take
into account bone and muscle. Regardless, it is used by many physicians to
screen for body fatness and a precaution to performing medical procedures based
on one’s health safety. Living an active lifestyle and eating a healthy diet
are the keys to your well-being. Although a measurement is only a tool that can
indicate an outcome, YOU have to decide to take the actions to be on the
healthy BMI range and give your body the opportunity to look and feel its best.

https://academic.oup.com/aje/article/143/3/228/77940

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4890841/

https://academic.oup.com/aje/article/180/3/288/2739097

https://bmcobes.biomedcentral.com/articles/10.1186/2052-9538-1-9

The post Body Mass Index: How do you measure up? appeared first on NaturalNewsBlogs.


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