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BMI vs. Body fat percentage



This is your quick workout tip that will teach you how to work smarter in moments so you can get straight to your workout.

I will never forget the time my doctor told me my weight was a problem. His exact words were “worryingly overweight” and he pronounced them while checking my BMI (Body Mass Index), which a nurse calculated after I jumped on a scale. In fact, he was so concerned that he gave me a free leaflet on weight loss and why it would be important to my health. There were lots of helpful illustrations.

That was the last time I visited this doctor ̵

1; not because my ego couldn’t handle its diagnosis, but because it was so deeply closed. My BMI was maybe 27, which put me right in the overweight range – but at the time of my visit I was bench press over 300 pounds and my body fat percentage was 11 percent. In short, I was cut strong and cut like hell. My abs cast their own shadows.

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That’s the problem with BMI calculations. They don’t take into account body composition (i.e., the ratio of lean mass to fat mass). First introduced in the 1830s by a Belgian mathematician named Adolphe Quetelet, the BMI uses a simple formula (weight in kilograms divided by height in square meters) to find a person’s body weight and determine their body fat percentage. In adults, anything under 18.5 is considered “underweight”, 18.5 to 24.9 “healthy”, 25 to 29.9 “overweight” and over 30 “obese”. In other words, the higher your BMI, the more fat you have – or so the thinking goes.

To be fair, BMI works pretty well for the general population – the majority of people don’t meet US guidelines for healthy physical activity, which means they don’t work out to build muscle – but when you’re lean and muscular , this is the BMI meaningless. This is because muscle weighs more than fat, which makes it perfectly possible to gain weight (and increase your BMI) as you gain muscle and lose fat. So if you eat healthily and exercise strength regularly, it is better to use another method to measure your “body competence”.

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Your movement: Focus on your body fat percentage. The most accurate measurement techniques are hydrostatic weighing (also called underwater weighing), air displacement plethysmography (similar to hydrostatic weighing, but with air instead of water) and DEXA (short for dual-energy X-ray absorptiometry). Unfortunately, these methods are also expensive and only available in elite training facilities, independent laboratories, and advanced medical centers.

Alternatively, you can use a “body fat scale,” which uses a weak electrical current to determine body fat percentage. Other methods, such as B. Old-school calipers for skinfold measurements can also help you get a rough estimate.

But body fat percentage shouldn’t be the end, it should be the number that drives your workout. Bodybuilders and top athletes sometimes drop below 10 percent but rarely stay there. Your body needs a certain amount of fat to function properly. So, aim for low double digits and be proud when you crack 15 percent because you will reach a level of fitness that most people only dream of. If you keep the focus of your training on achieving other real world goals, you will be able to be in great shape regardless of what is on the scale.


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