BMI
is a simple, universal measure of body fat that can be used to
determine whether or not your weight is healthy. BMI is derived by
comparing your height to your weight. It can be used by men and women
of all ages.
An American
BMI study (1999; more than one million Americans) revealed the
following range of "healthiest" BMIs: for men, 23.5 to 25.0; for
women, 22.0 to 23.5.
The Department of Health believes that you are overweight if you have a BMI above
25.0, and that this degree of overweight increases your risk of
heart disease, diabetes, and other illnesses.
Medical
research has shown that overweight individuals who lose weight
through exercise and/or dieting can significantly decrease their
risk of heart disease, diabetes and other illnesses.
A
regular running program provides one of the best ways to lose weight
or maintain healthy weight. Each mile you cover will burn
approximately 125 calories.
Running long and slow burns a
higher percentage of fat calories, and teaches your body to become
more efficient at fat-burning, which gives you more endurance for
long runs and marathons.
Running shorter and faster burns
more total calories per minute or mile, which helps you lose weight,
including body fat. Faster running also increases your "afterburn"
the calories your body continues burning after your run stops. We
believe it is a good idea to mix longer runs and faster runs in your
workout program.
BMIs below 20.7 (for men) and 19.1 (for
women) are considered unhealthy.