lies wrote:
If you look at it mathematically,
BMR:
Hasay weighs 5'4", now, her weight isn't listed anywhere, but I'll assume it's 100lbs. With those stats her BMR (Basal Metabolic Rate) is 1300 calories. This is AT REST WITH NO EXERCISE. Obviously, her metabolism could just be relatively faster than most at her height/weight. But these numbers don't change by anything significant usually.
Running:
She says she averages 100mpw. About 100 calories are burnt per mile. Based on height/weight (she would be at the lower end of this range). This means she runs on average 14 miles per day. Burning 1400 cals in running and (I'll give her the benefit of doubt) 1350 cals metabolically. So to maintain 100lbs she would only need to eat 2750 cals. So we'll round it to 3000 calories burnt per day with running.
Unless she's burning 2000 calories in lifting/cross training, etc (highly doubt) that are unaccounted for there is no way she eats 5000 cals per day.
Source: I'm a Biology Major, Dean's List
Wrong. BMR for athletes, especially elite athletes is way, way higher then standard BMR. It takes a lot of calories to maintain the lean muscle mass and especially the cardiovascular system Hasay has built. The fitter you are, the higher BMR you have.