Body Mass Index (BMI)
Body Mass Index is an accurate indicator of surplus body fat kilos or pounds. It is a mathematical ratio of height and weight that can be linked with body composition (or body fat percentage) and with indices of health risk.
The BMI is calculated as follows:
BMI = Weight (kg) or BMI = weight (in pounds) x 700
Height (m) 2 Height (in inches) 2
For example, the calculation for someone weighing 80 kg (176 lbs) and 1.60 m (63 in) tall is:
BMI = 80 = 31.2 or BMI = 176 x 700 = 31.1
1602 632
The important thing here is:
Body mass index can be calculated in either metric or imperial.
Weight in kilograms and height should be in meters.
Or the weight in pounds and height must be in inches.
People with a BMI of 25.1 to 29.9 are considered overweight, and those with a BMI of 30 or more are considered obese.
Thus from the above example, a person weighing 80 kg and is 1.60 m tall is considered obese. A high body mass index represents a higher percentage of body fat, which places a person at greater risk of developing chronic diseases and other serious illnesses.
BMI weight category
Shortfall under 19 years
20-25 Normal (Healthy)
26-30 Overweight
30 above Obese
However, for someone with an athletic or weight training program, this is not always strictly accurate. Muscle is heavier than fat so a person with low body fat above the mean and lean muscle mass could be labeled as overweight, but really enjoy good health.
Likewise, thin people who have low body weight with very little muscle and a higher percentage of fat may have a normal BMI, which would be a sign of poor health.
According to some studies, nearly 70 percent of heart disease cases in the United States are linked to excess body fat, and obese people are more than twice as likely to develop high blood pressure.
The women are obese, almost double the risk of developing breast cancer and all obese people have an estimated 42 percent more likely to develop colon cancer. Almost 80 percent of patients with Type 2 or non insulin-dependent diabetes mellitus are obese.
The risk of medical complications, especially heart disease, increases when body fat is distributed around the waist, especially in the abdomen. This type of upper body fat distribution is more common in men than in women.
For example, a man with a waist measurement of 37 inches and has increased the risk of long-term health problems such as those described above. Why not take action today to avoid preventable diseases and premature aging.
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