Do you dare take the BMI challenge?
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BMI still has validity, but mainly as a statistical measure of population characteristics. It is far more useful in combination with things like Waist Circumference. As has been pointed out, it has many failings but what we actually want to know is body composition. External measurements will also miss the TOFIs (thin outside, fat inside!) who have high levels of mobile visceral fat, which increases risk of cardio-vascular disease significantly! Unfortunately, at present, the best methods for measuring body composition are DEXA, hydrodensitometry and doubly-labelled water, all of which take time, money and need specialist equipment.
The electrical bioimpedance devices are ok-ish - unfortunately, standardisation is the issue and everyone should only be measured following an overnight fast, no exercise in previous 24 hrs, same levels of hydration, etc. Nutritional and hydration state affect impedance, as do the the points you measure between (foot-to-foot, foot-to-hand, etc).
I've always found the best methods are to eat healthily, look in the mirror to check your body shape, make sure you can still see your feet and lose some weight if your trousers are getting too tight. Simples.
The electrical bioimpedance devices are ok-ish - unfortunately, standardisation is the issue and everyone should only be measured following an overnight fast, no exercise in previous 24 hrs, same levels of hydration, etc. Nutritional and hydration state affect impedance, as do the the points you measure between (foot-to-foot, foot-to-hand, etc).
I've always found the best methods are to eat healthily, look in the mirror to check your body shape, make sure you can still see your feet and lose some weight if your trousers are getting too tight. Simples.
... by the way ... has anyone heard of Micronesia before ?
It's very popular with us sailors.
irate:Soooo glad this thread's turning out OK. G'night all.... :evilangel:
Yeah, I took the "challenge".
MY BMI is 20. Apparently, I'm most like someone from Eritrea. Blimey!
Of course, it's a load of rubbish. Trust the BBC to start brandishing a measure that has just about no shred of credibility left.
https://twitter.com/DrEades/status/202545341210439682
http://www.nature.com/oby/journal/v19/n5/abs/oby201138a.html
MY BMI is 20. Apparently, I'm most like someone from Eritrea. Blimey!
Of course, it's a load of rubbish. Trust the BBC to start brandishing a measure that has just about no shred of credibility left.
https://twitter.com/DrEades/status/202545341210439682
http://www.nature.com/oby/journal/v19/n5/abs/oby201138a.html
According to the doohickey I'm the fattest man on earth and belong on a south pacific island somewhere.
I take issue with the former statement, and am OK with the latter
I take issue with the former statement, and am OK with the latter
Well, I'm in the top 5% Nationaly and the TOP 1% GLOBALY !
Is that good or what ! Sounds like a result to me ...
... by the way ... has anyone heard of Micronesia before ?
Its not very big, the only occupants are 3 lady dwarfs and a pygmy.
Just done this having just had a full medical that gave me a body fat of 15% and a bmi of 29... I add 64931502 tonnes to the total weight of the world. Im quite happy to be this size, people dont seem to mess you about when you look like you could eat them 
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