When it comes to obtaining a strong and
sculpted midsection, there are many factors that come into
play. In addition to targeted abdominal workouts, diet and
exercise are key components to reducing midsection bulk. If
you’re carrying around extra pounds or have a layer of fat
obscuring your stomach muscles, it doesn’t matter how
well-developed those muscles are—that “spare tire” will prevent
them from rising to the surface.
Before taking steps toward losing weight and
achieving your body’s ideal fitness level, it can be helpful to
determine where you are currently in relation to the rest of
the population. Your Body Mass Index (commonly referred to as
BMI) is a scientific calculation of your total body fat ratio,
relative to your height, weight, and (optionally) age. By
common benchmarks, a BMI of 24 or less is recommended as
indicating a healthy weight. In general, anyone with a BMI of
26 or 27 is deemed approximately 20% overweight. A BMI value of
30 or higher is considered overweight, while 40 or higher
translates to obesity, which is linked to an increased risk for
high blood pressure, diabetes, and heart disease. A high
BMI paired with a large waist size (more than
40” for men and more than 35” for women) indicates a greater
risk of health problems.
Today, you’ll find many websites that offer
quick and easy BMI calculators, which allow
you to plug in your height and weight (and, optionally, age and
gender) to determine your Body Mass Index. You can then
reference a BMI chart to match up your calculated figure to
your height to determine what your ideal weight should be.
However, if you’d like to perform the calculation yourself, you
can follow the directions below:
1. Multiply your weight, in pounds, by 0.45
(example: 120 pounds x 0.45 = 54).
2. Multiply your height, in inches, by 0.025 (example: 5’4' or
64' x 0.25 = 1.6).
3. Multiply the answer from step 2 by itself (example: 1.6 x
1.6 = 2.56).
4. Divide the answer from step 1 by the answer from step 3
(example: 58.5 ÷ 1.65 = 21.09).
There is some controversy surrounding the
importance of BMI in determining a healthy weight, especially
for those individuals whose BMI qualifies as overweight when
much of their mass is comprised of muscle. While BMI can be
helpful in assessing your ideal body weight, it’s important to
note that other indicators may be more accurate, such as your
percentage of total body fat. Also, be aware that an extremely
low BMI (18.5 or less) can be just as dangerous as a high
one—being underweight carries its own set of life-threatening
risks.
It’s also important to note that BMI can
vary based on several social and demographic factors. For
instance, the calculation is performed
differently for children, and it can fluctuate based on
location and race.