this post was submitted on 24 Oct 2024
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Very usable without a computer once you do it once.
If you're at a 5 on the scale, "average to unhealthy" at 36 inches, you can put in 32 inches and find out that you'll be "lean to average." Or maybe you're a 42 and a 38 to get the same range. It's pretty easy to put in your waist, then set a "goal" waist.
So your goal is to lose 4 inches of stomach width, which you can measure with a $3 tailors tape.
Update the goal every year or so, as the numbers change as you age, but other than that, you're all good.
BMI has some great benefits, in that it's really easy to get and you can't mess it up. That's why it's a great measure for population and an amazing indicator for individuals.
anyone who made it halfway through highschool can do this
I had to tripple check if I got the correct number of brackets, that's how easy it is. And note that this isn't even the useful number that's used in the supporting paper. They validate their model by adding in other factors for waist and hip circumferences, age, height, gender, ethnicity, and body weight, to get bodyfat percentage and visceral adipose tissue, and check that to other data.
BMI is a spherical cow in vacuum, simple, easy, and close enough in basically all cases. And when it's off, it's usually off in being too conservative. BRI is a great tool for healthcare profesionals, but it requires too many measurements and too much math for the average person.
BMI is specifically not an amazing metric, for populations or individual people. The article goes into its flaws at length, but to summarize :
Its 200 years old, and is based nearly entirely on white men, with no design consideration for women or POC. It also fails utterly to account for muscle, so it classifies many very fit people as obese.
Its only use is that it's been in used for so long it can be used as a historical measurement to compare generations to each other.
Complicated math in the age of smartphones is a non issue. I used that very equation without even knowing it, within seconds. It's also not required more than once/year if you do the very simple thing I discussed above.
If a person is obese by BMI and the weight is actually muscle it's obvious to everyone. They're either in fantastic shape or they're a powerlifter (all of who know the health risks of the amount of fat they're carrying). BMI isn't wildy off in ways that will surprise a doctor.
Have you read the article’s part about diabetes?
Yes; I'm not saying that BRI isn't better.