Measurements for a Healthy Weight
Waist Circumference
Body Mass Index (BMI)
Weight


Measurements for a Healthy Weight

As with any health care plan, it is really beneficial if you have a healthcare professional help you with measuring and recording the progress of your healthy weight plan. Not only are they able to do the ground-work for you, but they can be a great support in times when you need them most. Invest in the confidence of someone you can trust to help you with one of the biggest changes of your life!

IMPORTANT NOTICE
Losing weight can lower your blood pressure, your blood sugar and / or cholesterol levels so if you have these conditions you will need to let your doctor and pharmacist know before you start losing weight as they will need to monitor you carefully and may need to reduce some of your medications.

There are numerous ways of assessing the benefit of your healthy weight management plan and you will be surprised to know one of the least important measures is your actual body weight!!

Some of the ways you can assess the benefit of your weight loss are:

  • Decrease in waist circumference OR
  • Decrease in BMI OR
  • Decrease in blood pressure OR
  • Improved blood glucose levels OR
  • Improved cholesterol and triglycerides OR
  • Your doctor reducing or stopping some of your medications OR
    (REMEMBER – don’t adjust your medication yourself always discuss any changes to your medication with your doctor first)
  • Increased energy OR
  • Improvements in personal body image and sense of wellbeing OR
  • Decreased snoring OR
  • Less joint or muscle pain

Two of the most commonly used measurements to determine if a persons’ weight is healthy or unhealthy are Waist Circumference and Body Mass Index.

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Waist Circumference

Waist Circumference is a measure of the abdominal fat mass of a person. As abdominal fat is associated with significant health risks, this measurement alone provides a good indication of the health risk associated with being overweight. Waist circumference has been consistently shown to be closely related to an increased risk of diseases such as cardiovascular disease and Type II diabetes.

The waist should be measured at the narrowest part of the torso (between ribs and hips) when looking front-on at your body.

 

 

Waist Circumference and risk of metabolic complications associated with obesity in Caucasian men and women

Waist Circumference (cm)
Risk of metabolic complications Men Women
Increased >94 >80
Substantially increased >102 >88

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Body Mass Index (BMI)

BMI is a calculation that is very well suited to assessing the levels of overweight and obesity in big populations. It adjusts for weight and height which allows people of very different body weights and heights to be grouped together into BMI ranges (see the examples below which show two people who are different heights and weights yet have the same BMI).

Body Mass Index =
Weight (in kilograms)
__________________________________________

(height in metres) x (height in metres)

Example 1:
Sarah weighs 84 kilograms and is 176cm tall. (176cm = 1.76metres)

(Sarah's height in metres) x (Sarah’s height in metres) = 1.76 x 1.76 = 3.1

Therefore Sarah's BMI = 84 / 3.1 = 27

Example 2:
John weighs 93 kilograms and is 185cm tall (185cm = 1.85m)

(John’s height in metres) X (John’s height in metres) = 1.85 x 1.85 = 3.42

Therefore, John’s BMI = 93 ÷ 3.42 = 27

Classification of weight by BMI

Classification BMI (kg/m2) Risk of co-morbidities and related disease
Underweight <18.5 Low (but possibly increased risk of other
clinical problems)
Normal Range 18.5 - 24.9 Average
Overweight >25.0
Pre-obese 25.0-29.9 Increased
Obese I 30.0-34.9 Moderate
Obese II 35.0-39.9 Severe
Obese III >40.0 Very severe

So from the example above, both Sarah and John have the same BMI which is classified as overweight (in the pre-obese range). From a health perspective this means that they are putting themselves at greater risk of developing things such as high blood pressure, diabetes, heart disease and stroke.

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Weight

Do not become obsessed with your scales!! Many factors other than the dreaded number on the scales contribute to the potential health impacts of being overweight. Some people will naturally weigh more than others depending on muscle mass, fat mass and metabolic differences.

By all means have your healthcare professional measure your weight (or do it yourself) at the start of any healthy weight program ("lifestyle" program), but don't be fastidious about the loss in weight. Waist circumference and BMI which are described above are both more useful when it comes to good health.

And remember, this time it IS about good health - and not just dropping weight. There are more reasons than just cosmetic ones as to why we should all manage our weight – a healthy weight will help you maintain a healthy body and a healthy mind.

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