Fitness Articles

Find Your Perfect Weight - Part 1

Setting a Healthy & Achievable Weight Loss Goal

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The only real reason to even think in terms of a “normal” or “ideal” body weight is because there is a statistical correlation between your weight and your risk of having certain health problems that can lead to premature death or disability. Although your weight may or may not be the cause of these health problems, it’s clear that people who weigh more—or less—than “normal” are more likely to have these problems.

Experts who study these things have come up with several different methods of estimating your health risks based on your weight and size, as well as a set of calculations that are routinely used to determine whether your weight/size is in the normal range or not. Here are three of the most commonly used calculations:

Body Mass Index (BMI) is simply the number you get when you divide your weight (in kilograms) by your height squared (in centimeters). According to years of health research, the further your BMI deviates from the normal range (whether above or below), the higher your risk for obesity-related health problems (such as diabetes, high blood pressure, high cholesterol, stroke, heart disease, and bone/joint disorders). Calculate your BMI here. Similarly, you can calculate your goal weight and see if it fits in with these ranges. If not, then your expectations might be unrealistic.

Height/Weight Charts, such as the HANWI formula (below), have been around since the 1950's. BMI has pretty much replaced the older height/weight charts as the most common way to assess health risks related to weight. But variations of these charts are still used today as quick and simple ways to estimate the normal weight range for your height. Here's a simple formula you can use:
  1. Women: Allow 100 pounds for the first 60 inches of height, plus 5 pounds for each additional inch (i.e. 130 pounds for someone that is 66 inches tall). Men: Allow 106 pounds for the first 60 inches of height, plus 6 pounds for each additional inch (i.e. 154 for someone that is 68 inches tall).
  2. The number you get above is the midpoint of the normal range; subtract or add 10% to get the low and high ends (117-143 pounds for the female above, 139-169 pounds for the man).
  3. People of average frame size should weigh close to the midpoint number, while those with large or small frames should be closer to the high or low end of the range. To determine whether you are large, small, or average frame, make a circle around the wrist of your dominant hand at the widest point (over the bones that protrude) with the thumb and middle finger of your opposite hand. If your thumb and finger don’t touch, you are large framed; if they just barely touch, you are medium, and if they overlap you are small framed.
  4. Does your goal weight fit well within these ranges? If not, you might want to adjust it.
One potential problem with both the BMI and height/weight tables is that neither formula distinguishes between fat weight and lean tissue (muscle) weight. BMI, for example, may incorrectly put people with unusually large amounts of muscle weight in the overweight category (even when their level of body fat might be normal), and people with poor muscle tone into the normal category (even when their level of body fat might be excessive). Another drawback to these formulas is that they don’t take into account where you store your fat. That's where this next formula comes in.
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About The Author

Dean Anderson Dean Anderson
Dean Anderson has master's degrees in human services (behavioral psychology/stress management) and liberal studies. His interest in healthy living began at the age of 50 when he confronted his own morbid obesity and health issues. He joined SparkPeople and lost 150 pounds and regained his health. Dean has earned a personal training certification from ACE and received training as a lifestyle and weight management consultant. See all of Dean's articles.

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