[acb-diabetics] keep waist measurement under half your height

[Patricia LaFrance-Wolf]

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Study leader Dr. Margaret Ashwell, an independent consultant and former
science director of the British Nutrition Foundation stated that, "Keeping
your waist circumference to less than half your height can help increase
life expectancy for every person in the world."

Thus a man who is 6ft or 72 inches tall (183 cm), should keep his waist
under 36 inches (91 cm), and a woman who is 5ft 4 in or 64 inches tall (163
cm), should keep her waist measurement under 32 inches (81 cm). Ashwell said
the measure should be considered as a screening tool.

The idea of using Waist to Height Ratio (WHtR) to predict cardiometabolic
risk is not new, but is coming to prominence as more studies reveal its
value.

At the meeting, Ashwell presented the findings of a study that analyzed the
health of 300,000 people and found WHtR was better able to predict high
blood pressure, diabetes, heart attacks and strokes than BMI.

BMI is a ratio of a person's weight in kilos to the square of their height
in meters. However, it does not take into account the distribution of fat
around the body.

Abdominal fat affects organs like the heart, liver and kidneys more
adversely than fat around the hips and bottom, in terms of cardiometabolic
risk.

Last year, Ashwell co-authored a paper on the increasing importance of using
Waist-to-Height Ratio (WHtR) to assess cardiometabolic risk, and pleaded for
scientists to use a consistent terminology to express the ratio so it can
easily be searched for in the literature.

An advantage of WHtR is the simplicity of the health message "keep your
waist circumference to less than half your height." This is a much easier
thought to hold in mind than BMI, where not only do you have to work out the
ratio of your weight in kilos to the square of your height in meters, but
also remember what the healthy range is.

To measure the waist circumference accurately, you should measure it mid-way
between the lower rib and the iliac crest (the top of the pelvic bone at the
hip), this is the method recommended by the World Health Organization, says
Ashwell.

"The Increasing Importance of Waist-to-Height Ratio to Assess
Cardiometabolic Risk: A Plea for Consistent Terminology; Margaret Ashwell
and Lucy M. Browning; The Open Obesity Journal, 2011, 3, 70-77. 


 

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