adding muscle

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Study finds BMI to be deeply flawed measure of health

personal trainers at work personal training New Orleans

The government has proposed rules that would allow employers to penalize employees for up to 30% of their health insurance costs if they don’t meet 24 health criteria one of which is the BMI, Body Mass Index.   It turns out that the BMI is a very unreliable indicator of health.    

From this LA times article, BMI mislabels 54 million Americans as 'overweight' or 'obese,' study says:

“A team of UCLA researchers analyzed data from 40,420 individuals who participated in the 2005-2012 National Health and Nutrition Examination Survey and they found that nearly half (47.4%) of overweight people and 29% of obese people were, from a metabolic standpoint, quite healthy. On the flip side, more than 30% of individuals with “normal” weights were metabolically unhealthy.

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Muscle mass a better predictor of longevity

personal trainers at work personal training New Orleans

From this Scientific American article, Muscle Mass Beats BMI as Longevity Predictor:

“Researchers analyzed BMI and muscle mass data from more than 3,600 seniors in a long-term study. And they tracked which seniors had died, a decade later. Turns out BMI wasn't much good at predicting chance of death. 

But muscle mass was: more muscle meant better odds of survival.” 

BMI is a dubious measurement to begin with.  Pictured is Mike Tyson. According to BMI charts he would be classified as clinically obese. He is not fat and has substantial muscle mass.

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Adding muscle and losing fat at age 65

personal trainers at work personal training New Orleans

Kathy is 65 years old and five feet tall. She does her strength training at our gym once a week and attends a weight loss clinic somewhere else. At the weight loss clinic they have a machine that measures body composition. Kathy said it even measures body composition in different parts of the body. 

As a result of their weight loss program people generally lose weight - some of it is fat, and some of it is muscle. Kathy did lose fat, and contrary to normal expectations, they were surprised to find that she actually gained muscle.

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